S-87x Series
www.sii-ic.com
HIGH WITHSTAND-
V
OLTAGE
VOLTAGE REGULATOR WITH RESET FUNCTION
© Seiko Instruments Inc., 1997-2010 Rev.8.0_00
Seiko Instruments Inc. 1
The S-87x Series is a low-power high withstand-voltage regulators with a reset functio n, which integrates high-
precision voltage detection and voltage regulation circuits on a single chip.
The S-87x Series has lineups for lithium -ion battery packs.
Features
• Accuracy of output voltage: ±2.4 %
2.5 V to 5.8 V (0.1 V step)
• Accuracy of detection voltage: ±2.4 % (For the F type, the release voltage is ±1.1 %)
2.1 V to 11.3 V (0.1 V step)
• Low I/O voltage difference: 0.15 V typ. (at IOUT=30 mA, VOUT=5.0 V)
0.45 V typ. (at IOUT=30 mA, VOUT=3.0 V)
• Low current consumption: At Operation mode: 8 μA max.
At Shutdown mode: 3.5 μA max. (Available for the C/E/G type)
• Wide operating voltage range: 24 V max.
• Wide operating temperature range: −40°C to +85°C
• Built-in delay circuit or shutdown circuit
• Built-in short-circuit protection circuit
• Lead-free, Sn 100%, halogen-free*1
*1. Refer to “ Product Name Structure” for details.
Applications
• Constant voltage power supply or reset circuit of battery-po we re d equipment, VTR, camera,
communications e quipment and others.
• Lithium-ion secondary battery pack
Package
• SOT-89-5
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
2
Block Diagrams
1. A/F type
VIN Voltage
regulator VOUT
VOR
VSS
CD
Delay circuit
Short-circuit
protection circuit
Voltage detection
circuit
Figure 1
2. B type
VIN Voltage
regulator VOUT
VOR
VSS
CD
Delay circuit
Short-circuit
p
rotection circuit
Voltage detection
circuit
Figure 2
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 3
3. C type
VIN Voltage
regulator
Voltage detection
circuit
VOUT
VOR
VSS
VPF
Short-circuit
protection circuit
Shutdown circuit
Figure 3
4. E type
VIN Voltage
regulator Power on/off
VOUT
VSS
SENSE VOR
Short-circuit
protection circuit
Voltage detection
circuit
Figure 4
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
4
5. G type
VIN Voltage
regulator
Voltage detection
circuit
Shutdown circuit
VOUT
VOR
VSS
VPF
Short-circuit
p
rotection circuit
Figure 5
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 5
Product Name Structure
1. Function list
Table 1
Shutdown
function
Type name Voltage detector
(VD)
Detection voltage
(−VDET) accuracy
[%]
Release voltage
(+VDET) accuracy
[%]
Built-in
delay
circuit VR VD
A type Detects VIN ±2.4 ⎯ Yes No No
B type Detects VOUT ±2.4 ⎯ Yes No No
C type Detects VIN ±2.4 ⎯ No Yes No
E type Detects VSENSE ±2.4 ⎯ No Yes No
F type Detects VIN ⎯ ±1.1 Yes No No
G type Detects VOUT ±2.4 ⎯ No Yes No
2. Product name selection guide
S-87 xx xx x UP - xxx T2 x
IC direction in the tape sepecifications*1
Product name (Abbreviation)*2
Package name (Abbreviation)
UP: SOT-89-5
Product type
A: Built-in delay circuit, VIN detection (−VDET detection)
B: Built-in delay circuit, VOUT detection
C: Built-in shudown circuit for regulator, VIN detection
E: Built-in shudown circuit for regulator, VSENSE detection
F: Built-in delay circuit, VIN detection (+VDET detection)
G: Built-in shudown circuit for regulator, VOUT detection
Detection voltage of voltage detector
21 to 94, A0, B0, B3 (Ex. When the detection voltage of voltage
detector is 2.1 V, it is expressed as 21.*3)
Output voltage of voltage regulator
25 to 56
(
Ex. When the out
p
ut volta
g
e of volta
g
e re
g
ulator is
Environmental code
U: Lead-free (Sn 100%), halogen-free
G: Lead-free (for details, please contact our sales office)
*1. Refer to the tape specifications at the end of this document.
*2. Refer to the Table 2 to Table 3 in the “4. Product name list”.
*3. A0 for 10.0 V, B0 for 11.0 V, B3 for 11.3 V.
3. Package
Drawing Code
Package Name Package Tape Reel
SOT-89-5 UP005-A-P-SD UP005-A-C-SD UP005-A-R-SD
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
6
4. Product name list
Table 2 (1/2)
VR output
voltage [V] VD detection
voltage [V] S-87xxxxA Series S-87xxxxB Series S-87xxxxC Series
5.6 3.5 ⎯ S-875635BUP-AGAT2x ⎯
5.2 9.4 ⎯ ⎯ S-875294CUP-AHCT2x
7.1 ⎯ ⎯ S-875271CUP-AHAT2x
5.5 ⎯ ⎯ S-875255CUP-AHBT2x
5.0 11.0 ⎯ ⎯ S-8750B0CUP-ACGT2x
7.7 S-875077AUP-AAFT2x ⎯ S-875077CUP-ACFT2x
6.1 ⎯ ⎯ S-875061CUP-ACHT2x
4.5 S-875045AUP-AAAT2x S-875045BUP-ABAT2x S-875045CUP-ACAT2x
4.3 S-875043AUP-AABT2x S-875043BUP-ABBT2x S-875043CUP-ACBT2x
4.1 S-875041AUP-AACT2x S-875041BUP-ABCT2x S-875041CUP-ACCT2x
3.9 S-875039AUP-AADT2x S-875039BUP-ABDT2x S-875039CUP-ACDT2x
3.7 S-875037AUP-AAET2x S-875037BUP-ABET2x S-875037CUP-ACET2x
3.4 ⎯ S-875034BUP-ABFT2x ⎯
2.9 ⎯ S-875029BUP-ABHT2x ⎯
2.1 ⎯ S-875021BUP-ABGT2x ⎯
3.3 7.7 S-873377AUP-0AAT2x ⎯ ⎯
6.1 ⎯ ⎯ S-873361CUP-AOHT2x
4.1 ⎯ ⎯ S-873341CUP-AOCT2x
2.8 S-873328AUP-0ABT2x ⎯ ⎯
2.5 ⎯ S-873325BUP-ALAT2x ⎯
3.0 6.9 ⎯ ⎯ S-873069CUP-AFFT2x
5.9 ⎯ ⎯ S-873059CUP-AFGT2x
2.5 S-873025AUP-ADAT2x S-873025BUP-AEAT2x S-873025CUP-AFAT2x
2.4 S-873024AUP-ADBT2x S-873024BUP-AEBT2x S-873024CUP-AFBT2x
2.3 S-873023AUP-ADCT2x S-873023BUP-AECT2x S-873023CUP-AFCT2x
2.2 S-873022AUP-ADDT2x S-873022BUP-AEDT2x S-873022CUP-AFDT2x
2.1 S-873021AUP-ADET2x S-873021BUP-AEET2x S-873021CUP-AFET2x
2.6 2.2 ⎯ S-872622B UP-OLAT2x ⎯
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 7
Table 2 (2/2)
VR output
voltage [V] VD detection
voltage [V] S-87xxxxE Series S-87xxxxG Series
5.0 11.0
S-8750B0EUP-AJIT2x ⎯
8.7
S-875087EUP-AJGT2x ⎯
7.7 S-875077EUP-AJFT2x ⎯
6.1 S-875061EUP-AJHT2x ⎯
4.2 ⎯ S-875042GUP-ANCT2x
3.7 ⎯ S-875037GUP-ANET2x
3.3
S-875033EUP-AJAT2x ⎯
3.0
S-875030EUP-AJBT2x ⎯
3.3 11.0
S-8733B0EUP-APCT2x ⎯
10.0
S-8733A0EUP-APFT2x ⎯
8.2
S-873382EUP-APHT2x ⎯
7.2
S-873372EUP-APET2x ⎯
6.4
S-873364EUP-APGT2x ⎯
4.8
S-873348EUP-APDT2x ⎯
3.0 S-873330EUP-APBT2x ⎯
3.0 11.3 S-8730B3EUP-AMFT2x ⎯
8.2 S-873082EUP-AMCT2x ⎯
6.2 S-873062EUP-AMBT2x ⎯
5.0
S-873050EUP-AMET2x ⎯
4.2
S-873042EUP-AMDT2x ⎯
2.5 4.8
S-872548EUP-AZBT2x ⎯
3.0
S-872530EUP-AZCT2x ⎯
2.6
S-872526EUP-AZAT2x ⎯
Caution In the S-87xxxxB/S-87xxxxG Series, when the output voltage of the v oltage regulator is
close to the detection voltage of the voltage detector, the tran sient response of the
voltage regulator may cause false detection. Please take transient response into
account when deciding voltage s.
Remark 1. x: G or U
2. Please select produ cts of environmental code = U fo r Sn 100%, halogen-free products.
Table 3
VR output
voltage [V] VD release
voltage [V] S-87xxxxF Series
5.0 8.7
S-875087FUP-AKAT2x
Remark 1. x: G or U
2. Please select produ cts of environmental code = U fo r Sn 100%, halogen-free products.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
8
Pin Configuration
Table 4
Pin No. Symbol Description
1 VOUT Voltage output pin of voltage regulator
2 VSS Ground pin
3 CD
(A/B/F type) Connection pin of external capacitor
for delay of voltage detector
VPF
(C/G type) Input pin of shutdown circuit
SENSE
(E type) Voltage monitoring pin of voltage
detector
SOT-89-5
Top view
1 3
2
4 5
4 VOR
Output pin of voltage detector,
Nch opendrain output
5 VIN Positive power-supply
Figure 6
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 9
Absolute Maximum Ratings
Table 5 (Unless otherwise specifie d: Ta=25°C)
Item Symbol Absolute maximum rating Unit
Input voltage*1 VIN VSS−0.3 to VSS+26 V
V
CD
(A/B/F type) VSS−0.3 to VIN+0.3
PFV
(C/G type) VSS−0.3 to VSS+26
V
SENSE
(E type)
Output voltage VOUT VSS−0.3 to VIN+0.3
Output voltage of voltage detector VOR VSS−0.3 to VSS+26
Power dissipation PD 500 (When not mounted on board) mW
1000*2
Operating ambient temperature Topr −40 to +85 °C
Storage temperature Tstg −40 to +125
*1. Even pulse (μs) noise exceeding the above input voltage (VSS+26 V) may damage the IC. Observe the
rated input voltage (VSS+26 V).
*2. When mounted on board
[Mounted board]
(1) Board size: 114.3 mm × 76.2 mm × t1.6 mm
(2) Board name: JEDEC STANDARD51-7
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
(1) When mounted on board (2) When not mounted on board
050 100 150
1200
800
400
0
Power Dissipation P
D
(mW)
Ambient Temperature Ta (°C)
1000
600
200
050 100 150
600
400
200
0
Power Dissipation P
D
(mW)
Ambient Temperature Ta (°C)
500
300
100
Figure 7 Power dissipation of package
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
10
Electrical Characteristics
1. S-8750xxA Series/S-8750xxB Seri es Table 6 (Unless otherwise specified: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Voltage Regulator
Output voltage VOUT VIN=7 V, IOUT=30 mA 4.88 5.00 5.12 V 1
I/O voltage difference Vdif IOUT=30 mA ⎯ 0.15 0.40
Line regulation ΔVOUT1 VIN=6 to 24 V,
IOUT=30 mA ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=7 V,
IOUT=50 μA to 40 mA ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=7 V, IOUT=30 mA,
Ta=−40°C to +85°C ⎯ ±0.38 ±1.52 mV
/°C
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
Delay time*1 tpd CD=4.7 nF 15 27 41 ms 3
Tempertue
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C to +85°C ⎯ ±0.5 ±2.0 mV
/°C 2
Detection voltage −VDET S-875045A/B 4.392 4.50 4.608 V
S-875043A/B 4.196 4.30 4.404
S-875041A/B 4.001 4.10 4.199
S-875039A/B 3.806 3.90 3.994
S-875037A/B 3.611 3.70 3.789
S-875021B 2.049 2.10 2.151
Sink current IDOUT VIN=1.3 V 0.25 0.60 ⎯ mA 4
Nch,
VDS=0.5 V VIN=2.4 V 1.50 2.60 ⎯
VIN=3.6 V 3.00 4.50 ⎯
Leakage current ILEAK Nch,
VDS=24 V, VIN=10 V ⎯ ⎯ 0.1 μA
Hysteresis width VHYS S-875045A/B −VDET
×0.01 ⎯ −VDET
×0.025 V 2
S-875043A/B to
S-875021A/B −VDET
×0.03 ⎯ −VDET
×0.08
Total
Current consumption*2 I
SS VIN=7 V, Unloaded ⎯ 3 8
μA 5
*1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF)
*2. Excluding the charging current of CD
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 11
2. S-8730xxA Series/S-8730xxB Seri es Table 7 (Unless otherwise specified: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Voltage Regulator
Output voltage VOUT VIN=5 V, IOUT=30 mA 2.928 3.000 3.072 V 1
I/O voltage difference Vdif IOUT=30 mA ⎯ 0.45 0.70
Line regulation ΔVOUT1 VIN=4 to 24 V,
IOUT=30 mA ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=5 V,
IOUT=50 μA to 40 mA ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=5 V, IOUT=30 mA,
Ta=−40°C to +85°C ⎯ ±0.23 ±0.92 mV
/°C
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
Delay time*1 tpd CD=4.7 nF 15 27 41 ms 3
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C to +85°C ⎯ ±0.3 ±1.2 mV
/°C 2
Detection voltage −VDET S-873025A/B 2.440 2.500 2.560 V
S-873024A/B 2.342 2.400 2.458
S-873023A/B 2.244 2.300 2.356
S-873022A/B 2.147 2.200 2.253
S-873021A/B 2.049 2.100 2.151
Sink current IDOUT Nch,
VDS=0.5 V VIN=1.3 V
Other than below 0.25 0.60 ⎯ mA 4
VIN=2.4 V
S-873025A/B 1.50 2.60 ⎯
Leakage current ILEAK Nch,
VDS=24 V, VIN=10 V ⎯ ⎯ 0.1 μA
Hysteresis width VHYS ⎯ −VDET
×0.03 ⎯ −VDET
×0.08 V 2
Total
Current consumption*2 I
SS VIN=5 V, Unloaded ⎯ 3 8
μA 5
*1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF)
*2. Excluding the charging current of CD
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
12
3. S-875635B Table 8 (Unless otherwise specified: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Voltage Regulator
Output voltage VOUT VIN=7.6 V, IOUT=30 mA 5.465 5.60 5.735 V 1
I/O voltage difference Vdif IOUT=30 mA ⎯ 0.15 0.40
Line regulation ΔVOUT1 VIN=6.6 to 24 V,
IOUT=30 mA ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=7.6 V,
IOUT=50 μA to 40 mA ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=7.6 V, IOUT=30 mA,
Ta=−40°C to +85°C ⎯ ±0.43 ±1.72 mV
/°C
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
Delay time*1 tpd CD=4.7 nF 15 27 41 ms 3
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C to +85°C ⎯ ±0.3 ±1.2 mV
/°C 2
Detection voltage −VDET ⎯ 3.416 3.50 3.584 V
Sink current IDOUT VIN=1.3 V 0.25 0.60 ⎯ mA 4
Nch,
VDS=0.5 V VIN=2.4 V 1.50 2.60 ⎯
Leakage current ILEAK Nch,
VDS=24 V, VIN=10 V ⎯ ⎯ 0.1 μA
Hysteresis width VHYS ⎯ −VDET
×0.03 ⎯ −VDET
×0.08 V 2
Total
Current consumption*2 I
SS VIN=7.6 V, Unloaded ⎯ 4 8
μA 5
*1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF)
*2. Excluding the charging current of CD
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 13
4. S-873325B Table 9 (Unless otherwise specified: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Voltage Regulator
Output voltage VOUT VIN=5.3 V, IOUT=30 mA 3.220 3.300 3.380 V 1
I/O voltage difference Vdif IOUT=30 mA ⎯ 0.45 0.70
Line regulation ΔVOUT1 VIN=4.3 to 24 V,
IOUT=30 mA ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=5.3 V,
IOUT=50 μA to 40 mA ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=5.3 V, IOUT=30 mA,
Ta=−40°C to +85°C ⎯ ±0.25 ±1.00 mV
/°C
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
Delay time*1 tpd CD=4.7 nF 15 27 41 ms 3
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C to +85°C ⎯ ±0.2 ±0.8 mV
/°C 2
Detection voltage −VDET ⎯ 2.440 2.500 2.560 V
Sink current IDOUT Nch,
VDS=0.5 V, VIN=1.3 V 0.25 0.60 ⎯ mA 4
Leakage current ILEAK Nch,
VDS=24 V, VIN=10 V ⎯ ⎯ 0.1 μA
Hysteresis width VHYS ⎯ −VDET
×0.03 ⎯ −VDET
×0.08 V 2
Total
Current consumption*2 I
SS VIN=5.3 V, Unloaded ⎯ 4 8
μA 5
*1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF)
*2. Excluding the charging current of CD
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
14
5. S-8750xxC Series/S-875037G Table 10 (1/2) (Unless otherwise specifie d: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Voltage Regulator
Output voltage VOUT VIN=7 V, IOUT=30 mA 4.88 5.00 5.12 V 1
I/O voltage difference Vdif IOUT=30 mA ⎯ 0.15 0.40
Line regulation ΔVOUT1 VIN=6 to 24 V,
IOUT=30 mA ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=7 V,
IOUT=50 μA to 40 mA ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=7 V, IOUT=30 mA,
Ta=−40°C to +85°C ⎯ ±0.38 ±1.52 mV
/°C
Shutdown output
voltage VOUT/OFF VIN=7 V, PFV=”L”,
RL=1 MΩ ⎯ ⎯ 0.1 V 6
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C
to +85°C S-8750B0C ⎯ ±0.8 ±3.2 mV
/°C 2
S-875077C
⎯ ±0.6 ±2.4
S-875061C to
S-875037C,
S-875037G ⎯ ±0.5 ±2.0
Detection voltage −VDET S-8750B0C 10.736 11.00 11.264 V
S-875077C 7.515 7.70 7.885
S-875061C 5.953 6.10 6.247
S-875045C 4.392 4.50 4.608
S-875043C 4.196 4.30 4.404
S-875041C 4.001 4.10 4.199
S-875039C 3.806 3.90 3.994
S-875037C/S-875037G 3.611 3.70 3.789
Sink current IDOUT VIN=1.3 V 0.25 0.60 ⎯ mA 4
Nch,
VDS=0.5 V VIN=2.4 V 1.50 2.60 ⎯
VIN=3.6 V 3.00 4.50 ⎯
Leakage current ILEAK Nch,
VDS=24 V
VIN=10 V
S-875077C to
S-875037C,
S-875037G
⎯ ⎯ 0.1 μA
VIN=15 V
S-8750B0C
Hysteresis width VHYS S-875045C −VDET
×0.01 ⎯ −VDET
×0.025 V 2
S-8750B0C to S-875061C,
S-875043C to S-875037C,
S-875037G
−VDET
×0.03 ⎯ −VDET
×0.08
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 15
Table 10 (2/2) (Unless otherwise specifie d: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Total
Current consumption ISS VIN=7 V,
Unloaded S-8750B0C to
S-875061C ⎯ 4 8
μA 5
S-875045C to
S-875037C,
S-875037G ⎯ 3 8
l
of PFV=”L”, Shutdown,
VIN=7 V ⎯ 1.5 3.5
Shutdown input
voltage VIL PFV=”L”, Shutdown,
VIN=7 V ⎯ ⎯ 0.4 V 6
V
IH PFV=”H”, Power on,
VIN=7 V 2.0 ⎯ ⎯
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
16
6. S-8730xxC Series Table 11 (Unless otherwise specified: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Voltage Regulator
Output voltage VOUT VIN=5 V, IOUT=30 mA 2.928 3.000 3.072 V 1
I/O voltage difference Vdif IOUT=30 mA ⎯ 0.45 0.70
Line regulation ΔVOUT1 VIN=4 to 24 V,
IOUT=30 mA ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=5 V,
IOUT=50 μA to 40 mA ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=5 V, IOUT=30 mA,
Ta=−40°C to +85°C ⎯ ±0.23 ±0.92 mV
/°C
Shutdown output
voltage VOUTOFF VIN=5V,
PFV=”L”, RL=1 MΩ ⎯ ⎯ 0.1 V 6
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
S-873069C ⎯ ±0.5 ±2.0
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C
to +85°C S-873025C to
S-873021C ⎯ ±0.3 ±1.2 mV
/°C
Detection voltage −VDET S-873069C 6.734 6.900 7.066
V
S-873025C 2.440 2.500 2.560
S-873024C 2.342 2.400 2.458
S-873023C 2.244 2.300 2.356
S-873022C 2.147 2.200 2.253
S-873021C 2.049 2.100 2.151
Sink current IDOUT Nch,
VDS=0.5 V VIN=1.3 V
Other than below 0.25 0.60 ⎯ mA 4
VIN=2.4 V
S-873069C,
S-873025C 1.50 2.60 ⎯
VIN=3.6 V
S-873069C 3.00 4.50 ⎯
Leakage current ILEAK Nch, VDS=24 V, VIN=10 V ⎯ ⎯ 0.1 μA
Hysteresis width VHYS ⎯ −VDET
×0.03 ⎯ −VDET
×0.08 V 2
Total
ISS VIN=5 V, Unloaded ⎯ 3 8
μA 5
Current consumption lof PFV=”L”, Shutdown, VIN=5 V ⎯ 1.5 3.5
Shutdown input voltage VIL PFV=”L”, Shutdown, VIN=5 V ⎯ ⎯ 0.4 V 6
V
IH PFV=”H”, Power on, VIN=5 V 2.0 ⎯ ⎯
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 17
7. S-875271C, S-875255C Table 12 (Unless otherwise specified: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Voltage Regulator
Output voltage VOUT VIN=7.2 V, IOUT=30 mA 5.075 5.20 5.325 V 1
I/O voltage difference Vdif IOUT=30 mA ⎯ 0.15 0.40
Line regulation ΔVOUT1 VIN=6.2 to 24 V,
IOUT=30 mA ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=7.2 V,
IOUT=50 μA to 40 mA ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=7.2 V, IOUT=30 mA,
Ta=−40°C to +85°C ⎯ ±0.40 ±1.60 mV
/°C
Shutdown output
voltage VOUTOFF VIN=7.2V,
PFV=”L”, RL=1 MΩ ⎯ ⎯ 0.1 V 6
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
S-875271C ⎯ ±0.5 ±2.0
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C
to +85°C S-875255C ⎯ ±0.4 ±1.6 mV
/°C
S-875271C 6.929 7.10 7.271 V
Detection voltage −VDET S-875255C 5.368 5.50 5.632
Sink current IDOUT VIN=1.3V 0.25 0.60 ⎯ mA 4
Nch,
VDS=0.5 V VIN=2.4V 1.50 2.60 ⎯
VIN=3.6V 3.00 4.50 ⎯
Leakage current ILEAK Nch, VDS=24 V, VIN=10 V ⎯ ⎯ 0.1 μA
Hysteresis width VHYS ⎯ −VDET
×0.03 ⎯ −VDET
×0.08 V 2
Total
Current consumption ISS VIN=7.2 V, Unloaded ⎯ 4 8
μA 5
l
of PFV=”L”, Shutdown,
VIN=7.2 V ⎯ 1.5 3.5
Shutdown input
voltage VIL PFV=”L”, Shutdown,
VIN=7.2 V ⎯ ⎯ 0.4 V 6
V
IH PFV=”H”, Power on,
VIN=7.2 V 2.0 ⎯ ⎯
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
18
8. S-875294C Table 13 (Unless otherwise specified: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Voltage Regulator
Output voltage VOUT VIN=14.4 V, IOUT=30 mA 5.075 5.20 5.325 V 1
I/O voltage difference Vdif IOUT=30 mA ⎯ 0.15 0.40
Line regulation ΔVOUT1 VIN=6.2 to 24 V,
IOUT=30 mA ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=14.4 V,
IOUT=50 μA to 40 mA ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=14.4 V, IOUT=30 mA,
Ta=−40°C to +85°C ⎯ ±0.40 ±1.60 mV
/°C
Shutdown output
voltage VOUTOFF VIN=14.4 V,
PFV=”L”, RL=1 MΩ ⎯ ⎯ 0.1 V 6
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C to +85°C ⎯ ±0.7 ±2.8 mV
/°C
Detection voltage −VDET ⎯ 9.174 9.40 9.626 V
VIN=1.3 V 0.25 0.60 ⎯
VIN=2.4 V 1.50 2.60 ⎯
Sink current IDOUT Nch,
VDS=0.5 V VIN=3.6 V 3.00 4.50 ⎯
mA 4
Leakage current ILEAK Nch, VDS=24 V, VIN=10 V ⎯ ⎯ 0.1 μA
Hysteresis width VHYS ⎯ −VDET
×0.03 ⎯ −VDET
×0.08 V 2
Total
Current consumption ISS VIN=14.4 V, Unloaded ⎯ 4 9
μA 5
l
of PFV=”L”, Shutdown,,
VIN=14.4 V ⎯ 2.1 4.7
Shutdown input
voltage VIL PFV=”L”, Shutdown,
VIN=14.4 V ⎯ ⎯ 0.4 V 6
V
IH PFV=”H”, Power on,
VIN=14.4 V 2.6 ⎯ ⎯
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 19
9. S-873361C Table 14 (Unless otherwise specified: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Voltage Regulator
Output voltage VOUT VIN=5.3 V, IOUT=30 mA 3.220 3.300 3.380 V 1
I/O voltage difference Vdif IOUT=30 mA ⎯ 0.45 0.70
Line regulation ΔVOUT1 VIN=4.3 to 24 V,
IOUT=30 mA ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=5.3 V,
IOUT=50 μA to 40 mA ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=5.3 V, IOUT=30 mA,
Ta=−40°C to +85°C ⎯ ±0.25 ±1.00 mV
/°C
Shutdown output
voltage VOUTOFF VIN=5.3 V, PFV=”L”,
RL=1 MΩ ⎯ ⎯ 0.1 V 6
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C to +85°C ⎯ ±0.5 ±2.0 mV
/°C
Detection voltage −VDET ⎯ 5.953 6.100 6.247 V
Sink current IDOUT VIN=1.3 V 0.25 0.60 ⎯ mA 4
Nch,
VDS=0.5 V VIN=2.4 V 1.50 2.60 ⎯
VIN=3.6 V 3.00 4.50 ⎯
Leakage current ILEAK Nch, VDS=24 V, VIN=10 V ⎯ ⎯ 0.1 μA
Hysteresis width VHYS ⎯ −VDET
×0.03 ⎯ −VDET
×0.08 V 2
Total
Current consumption ISS VIN=5.3 V, Unloaded ⎯ 4 8
μA 5
l
of PFV=”L”, Shutdown,
VIN=5.3 V ⎯ 1.5 3.5
Shutdown input
voltage VIL PFV=”L”, Shutdown,
VIN=5.3 V ⎯ ⎯ 0.4 V 6
V
IH PFV=”H”, Power on,
VIN=5.3 V 2.0 ⎯ ⎯
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
20
10. S-8750xxE Series Table 15
(Unless otherwise specifie d: Ta=25°C, Connect the SENSE pin to the VIN pin.)
Item Symbol Condition Min. Typ. Max. Unit Test
circuit
Voltage Regulator
Output voltage VOUT VIN=7 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V 4.88 5.00 5.12 V 1
I/O voltage difference Vdif IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 0.15 0.40
Line regulation ΔVOUT1 VIN=6 to 24 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=7 V, IOUT=50 μA to 40 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=7 V, IOUT=30 mA,
Ta=−40°C to +85°C,
VSENSE=−VDET (Typ.)+2 V ⎯ ±0.38 ±1.52 mV
/°C
Output voltage during
voltage detection VOUTOFF VIN=−VDET (Typ.)−1V, RL=1 MΩ ⎯ ⎯ 0.1 V
6
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
S-875077E ⎯ ±0.6 ±2.4
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C to
+85°C S-875061E ±0.5 ±2.0 mV
/°C
S-875077E 7.515 7.70 7.885 V
Detection voltage −VDET S-875061E 5.953 6.10 6.247
Sink current IDOUT Nch, VDS=0.5 V VIN=1.3 V 0.25 0.60 ⎯ mA 4
VIN=2.4 V 1.50 2.60 ⎯
VIN=3.6 V 3.00 4.50 ⎯
Leakage current ILEAK Nch, VDS=24 V,
VIN=−VDET (Typ.) +2 V ⎯ ⎯ 0.1 μA
SENSE pin input current lSENSE S-875077E ⎯ 0.6 1.7 7
VIN=7 V,
VSENSE=−VDET (Typ.)
+2 V S-875061E ⎯ 0.7 1.8
Hysteresis width VHYS ⎯ −VDET
×0.03 ⎯ −VDET
×0.08 V 2
Total
Current consumption ISS S-875077E ⎯ 4 8
μA 5
VIN=−VDET (Typ.)+2 V,
Unloaded S-875061E ⎯ 4 9
l
of VIN=−VDET (Typ.)−1 V, Shutdown ⎯ 1.5 3.5
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 21
11. S-8730xxE Series Table 16
(Unless otherwise specifie d: Ta=25°C, Connect the SENSE pin to the VIN pin.)
Item Symbol Condition Min. Typ. Max. Unit Test
circuit
Voltage Regulator
Output voltage VOUT VIN=5 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V 2.928 3.000 3.072 V 1
I/O voltage difference Vdif IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 0.45 0.70
Line regulation ΔVOUT1 VIN=4 to 24 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=5 V, IOUT=50 μA to 40 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=5 V, IOUT=30 mA,
Ta=−40°C to +85°C,
VSENSE=−VDET (Typ.)+2 V ⎯ ±0.23 ±0.92 mV
/°C
Output voltage during
voltage detection VOUTOFF VIN=−VDET (Typ.)−1 V, RL=1 MΩ ⎯ ⎯ 0.1 V
6
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
S-873082E ⎯ ±0.6 ±2.4
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C to
+85°C S-873062E ⎯ ±0.5 ±2.0 mV
/°C
Detection voltage −VDET S-873082E 8.003 8.200 8.397 V
S-873062E 6.051 6.200 6.349
Sink current IDOUT VIN=1.3 V 0.25 0.60 ⎯ mA 4
Nch, VDS=0.5 V VIN=2.4 V 1.50 2.60 ⎯
VIN=3.6 V 3.00 4.50 ⎯
Leakage current ILEAK Nch, VDS=24 V,
VIN=−VDET (Typ.)+2 V ⎯ ⎯ 0.1 μA
lSENSE S-873082E
⎯ 0.6 1.7 7
SENSE pin input
current
VIN=5 V,
VSENSE=−VDET (Typ.)+
2 V S-873062E ⎯ 0.6 1.8
Hysteresis width VHYS ⎯ −VDET
×0.03 ⎯ −VDET
×0.08 V 2
Total
Current consumption ISS VIN=−VDET (Typ.)+2 V, Unloaded ⎯ 4 8
μA 5
l
of VIN=−VDET (Typ.)−1 V, Shutdown ⎯ 1.5 3.5
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
22
12. S-873330E Table 17
(Unless otherwise specifie d: Ta=25°C, Connect the SENSE pin to the VIN pin.)
Item Symbol Condition Min. Typ. Max. Unit Test
circuit
Voltage Regulator
Output voltage VOUT VIN=5.3 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V 3.220 3.300 3.380 V 1
I/O voltage difference Vdif IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 0.45 0.70
Line regulation ΔVOUT1 VIN=4.3 to 24 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=5.3 V,
IOUT=50 μA to 40 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=5.3 V, IOUT=30 mA,
Ta=−40°C to +85°C,
VSENSE=−VDET (Typ.)+2 V ⎯ ±0.25 ±1.00 mV
/°C
Output voltage during
voltage detection VOUTOFF VIN=−VDET (Typ.)−1 V, RL=1 MΩ ⎯ ⎯ 0.1 V
6
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V
Temperature
characteristic of −VDET Ta
Δ
VΔDET− Ta=−40°C to +85°C ⎯ ±0.2 ±0.8 mV
/°C
2
Detection voltage −VDET ⎯ 2.928 3.000 3.072 V
Sink current IDOUT VIN=1.3 V 0.25 0.60 ⎯ mA 4
Nch,
VDS=0.5 V VIN=2.4 V 1.50 2.60 ⎯
Leakage current ILEAK Nch, VDS=24 V,
VIN=−VDET (Typ.)+2 V ⎯ ⎯ 0.1 μA
SENSE pin input
current lSENSE VIN=5.3 V,
VSENSE=−VDET (Typ.)+2 V ⎯ 0.5 1.3 7
Hysteresis width VHYS ⎯ −VDET
×0.03 ⎯ −VDET
×0.08 V 2
Total
Current consumption ISS VIN=−VDET (Typ.)+2 V, Unloaded ⎯ 4 8
μA 5
l
of VIN=−VDET (Typ.)−1 V, Shutdown ⎯ 1.5 3.5
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 23
13. S-8725xxE Series Table 18
(Unless otherwise specifie d: Ta=25°C, Connect the SENSE pin to the VIN pin.)
Item Symbol Condition Min. Typ. Max. Unit Test
circuit
Voltage Regulator
Output voltage VOUT VIN=4.5 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V 2.440 2.500 2.560 V 1
I/O voltage difference Vdif IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 0.65 1.00
Line regulation ΔVOUT1 VIN=4.5 to 24 V, IOUT=30 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=4.5 V,
IOUT=50 μA to 40 mA,
VSENSE=−VDET (Typ.)+2 V ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=4.5 V, IOUT=30 mA,
Ta=−40°C to +85°C,
VSENSE=−VDET (Typ.)+2 V ⎯ ±0.23 ±0.92 mV
/°C
Output voltage during
voltage detection VOUTOFF VIN=−VDET (Typ.)−1 V, RL=1 MΩ ⎯ ⎯ 0.1 V
6
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V
S-872548E ⎯ ±0.5 ±2.0
Temperature
characteristic of
−VDET Ta
Δ
VΔDET− Ta=−40°C to
+85°C S-872530E to
S-872526E ⎯ ±0.2 ±0.8 mV
/°C
2
Detection voltage S-872548E 4.685 4.800 4.915
S-872530E 2.928 3.000 3.072
−VDET S-872526E 2.538 2.600 2.662
V
Sink current IDOUT VIN=1.3 V 0.25 0.60 ⎯ mA 4
VIN=2.4 V 1.50 2.60 ⎯
Nch,
VDS=0.5 V VIN=3.6 V 3.00 4.50 ⎯
Leakage current ILEAK Nch, VDS=24 V,
VIN=−VDET (Typ.)+2 V ⎯ ⎯ 0.1 μA
SENSE pin input
current lSENSE VIN=4.5V,
VSENSE=−VDET (Typ.)
+2 V
S-872548E to
S-872526E ⎯ 0.5 1.3 7
Hysteresis width S-872548E to S-872530E −VDET
×0.03 ⎯ −VDET
×0.08
VHYS S-872526E −VDET
×0.02 ⎯ −VDET
×0.05
V 2
Total
Current consumption ISS VIN=−VDET (Typ.)+2 V, Unloaded ⎯ 4 8
μA 5
l
of VIN=−VDET (Typ.)−1 V, Shutdown ⎯ 1.5 3.5
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
24
14. S-875087F Table 19 (Unless otherwise specified: Ta=25°C)
Item Symbol Condition Min. Typ. Max. Unit
Test
circuit
Voltage Regulator
Output voltage VOUT VIN=7 V, IOUT=30 mA 4.88 5.00 5.12 V 1
I/O voltage difference Vdif IOUT=30 mA ⎯ 0.15 0.40
Line regulation ΔVOUT1 V
IN=6 to 24 V, IOUT=30 mA ⎯ 15 50 mV
Load regulation ΔVOUT2 VIN=7 V,
IOUT=50 μA to 40 mA ⎯ 15 50
Input voltage VIN ⎯ ⎯ ⎯ 24 V
Temperature
coefficient of VOUT TaΔ
VΔOUT VIN=7 V, IOUT=30 mA,
Ta=−40°C to +85°C ⎯ ±0.38 ±1.52 mV
/°C
Voltage Detector
Operating voltage Vopr ⎯ 1.3 ⎯ 24 V 2
Delay time*1 t
pd CD=4.7 nF 15 27 41 ms
3
Release voltage vs
Temperature TaΔ
VΔDET+ Ta=−40°C to +85°C ⎯ ±0.7 ±2.8 mV
/°C 2
Release voltage
(Overcharge detection
voltage) +VDET ⎯ 8.600 8.700 8.800 V
VIN=1.3 V 0.25 0.60 ⎯
VIN=2.4 V 1.50 2.60 ⎯
Sink current IDOUT Nch,
VDS=0.5 V VIN=3.6 V 3.00 4.50 ⎯
mA 4
Leakage current ILEAK Nch, VDS=24 V, VIN=15 V ⎯ ⎯ 0.1 μA
Hysteresis width VHYS ⎯ 0.085 ⎯ 0.215 V 2
Total
Current consumption*2 ISS VIN=7 V, Unloaded ⎯ 4 8
μA 5
*1. tpd (ms)=(3.18min., 5.74typ., 8.73max.)×CD(nF)
*2. Excluding the charging current of CD.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 25
Measurement Circuits
1.
C
L
VSS
VOUT
A
VIN
(SENSE)
)VPF(
V
2.
V
VSS
VOUT
VIN
VOR
100 k
Ω
(SENSE)
)VPF(
Figure 8 Figure 9
3.
VSS
VOUT
VIN
VOR
CD
100 k
Ω
C
D
4.
VSS
VOUT
VIN VOR
A
V
(SENSE)
)VPF(
Figure 10 Figure 11
5.
VSS
VIN
A
(SENSE)
)VPF(
6.
VSS
VOUT
VIN
)VPF(
R
L
=
1 MΩ
(SENSE)
V
Figure 12 Figure 13
7.
VSS
VIN
A
SENSE
Figure 14
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
26
Operation Timing Charts
1. Voltage regulator (C/G type)
*2
*1
H
L
PFV [V]
t [s]
VSS
VOUT [V]
t [s]
VSS
VIN [V]
t1
t [s]
VSS
*1 t2
*1. Indicates shutdown state. When the load current (IOUT) is less than 1 μA, the output voltage (VOUT) is
not always VSS level.
*2. When the VOUT is shorted at t1, VOUT becomes VSS level. When the short of VOUT is removed at t2,
VOUT returns to normal output. Figure 15
2. Voltage detector (A/B/F type)
+V
DET
−V
DET
t
pd
*1
t [s]
V
OR
[V]
V
IN
or V
OUT
[V]
t [s]
V
HYS
t
pd
*1
t
pd
*1
*1. Output delay time (tpd) of the voltage detector can be changed with an external capacitance value to
CD pin. Delay circuit is not includ ed in C/E/G type.
Remark Pull up VOR through a resisto r to VIN or VOUT.
Figure 16
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 27
3. When using the SENSE pin (E type)
V
OUT
[V]
t [s]
+V
DET
−V
DET
t [s]
t [s]
V
OR
[V]
V
IN
=V
SENSE
*1
[V]
*1. The SENSE pin is connected to VIN pin.
Remark Pull up VOR through a resistor to VOUT.
Figure 17
Explanation of Terms
1. I/O voltage difference (Vdif)
Vdif=VIN1−VOUT1
VOUT1: Initial output voltage
VIN1: Input voltage which generates an output voltage (VOUT2) decreased by 5 % from VOUT1
2. Load regulation (ΔVOUT2)
ΔVOUT2=VOUT1−VOUT2
VOUT1: Output voltage when IOUT is 50 μA
VOUT2: Output voltage when IOUT is 40 mA
3. Line regulation (ΔVOUT1)
ΔVOUT1=VOUT1−VOUT2
VOUT1: Output voltage when VIN is 24 V
VOUT2: Output voltage when VIN is (VOUT+1) V
4. Hysteresis width (VHYS)
VHYS=(+VDET)−(−VDET)
+VDET: Release voltage
−VDET: Detection voltage
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
28
Operation
1. Reference voltage circuit
The reference voltage circuit operates all the time when the voltage is applied to VIN pin and is not
affected by the VPF signal.
2. Voltage regulator
Figure 18 shows the voltage regulator circuit. The S-87x Series has a Pch MOS transistor as the output
control transistor.
Reverse current may break IC if VOUT potential is higher than VIN, because a pa rasitic diode is formed
between VIN and VOUT due to the structure of the control transistor. Therefore, keep VOUT lower than
VIN+0.3 V.
The output voltage of the voltage regulator ca n be selected as follows:
2.5 V to 5.8 V±2.4 % (0.1 V step)
V
REF
V
IN
+
−
M1
V
OUT
R
1
R
2
*1
*1. Parasitic diode Figure 18 Voltage regulator circuit
Caution For an application with a load current of less than 1 μ
A
, the leakage current of the control
transistor M1 increases the output voltage.
3. Short-circuit protection circuit
The S-87x Series has a built-in short-circuit protectio n circuit to protect the eleme nt from break caused by
a large current in case of a short circuit. The output short current is internally limited to approx. 70 mA.
Short-circuit protection circuit has three kinds characteristics according to input voltage (VIN) as shown in
Figure 19 to 21.
At 5 V Output:
(a) VIN/VOUT≥2.0 (b) 1.5≤VIN/VOUT<2.0 (c) VIN/VOUT<1.5
V
OUT
[V]
I
OS
I
max
I
OUT
[mA]
VOUT
[V]
IOS IOUT
[mA]
I
OUT
[mA]
V
OUT
[V]
I
OS
Figure 19 Figure 20 Figure 21
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 29
4. Delay circuit
The delay circuit outputs voltage detect or output (V OR) with delay after the voltage at VIN pin has become
release voltage (+VDET) at the rising of VIN pin.
In Figure 22, when Vcd exceeds the reference voltage (Vref), the output voltage pin detection voltage
output (VOR) changes from low to high le vel, providing delay output. When the voltage at VIN pin falls
under the detection voltage (−VDET), the N2 transistor turns ON, therefore the charge of the external
capacitor ( CD) is rapidly discharged and the voltage detector o utput (VOR) changes from high to low level
without delay.
The external capacitor (CD) is charged with constant current, and is practically independent of VIN voltage.
Its delay time (tpd) is expressed by the following equation:
tpd (ms)=Delay coefficient (3.18 min., 5.74 typ., 8.73 max.)×CD (nF)
VOR
V
cd
C
D
N2
V
ref
+
−
I
C
CD
Figure 22
Caution 1. Unless an output delay is needed, keep CD pin open. Do not apply external voltage
other than ground potential to CD pin, which may cause IC breakdown.
2. When designing your printed-circuit board layout, take care that no leakage current
flows to the external capacitor (CD), otherwise the correct delay time may not be
obtained. Because the value of the constant current source (IC) is only 195 nA, CDto
impedance is high.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
30
5. Voltage detection circuit
The built-in voltage detection circuit (Nch opendrai n type) is equivalent to our S-808 Series/S-809 Series
voltage detectors. A pull-up resistor of about 100 kΩ is required for output. Since the comparator power
of this circuit is supplied from VIN pin, this circuit operates while voltage is applied to VIN pin.
The detection voltage of the voltage detector can b e selected as follows:
2.1 V to 11.3 V±2.4 % (0.1 V step)
In the F type, the release voltage (+VDET) accuracy is ±1.1 %. So, it responds to the application for
overcharge detection of lithium-ion battery packs.
In the E type, the input voltage monitoring pin of the voltage detector is externally connected as the
SENSE pin. Because this pin is configured by a resistor only, temporary current such a s a through -type
current does not flow. Consequently even when re sistor (RIN) is inserted between input power supply and
VIN pin, the input power voltage can be accurately monitore d by connecting the SENSE pin to the input
power supply. Also, when a drop in the SENSE pin input voltage is detected, the voltage detector
generates a reset signal. At the same time, it powers off the voltage regulator.
Caution 1. As shown in Figure 23 to 25, when connecting VOR output to
V
PF pin in the C type or
connecting SENSE pin to VIN pin in the E type, the following phenomena occur if
resistor (RIN) is connected between input voltage and VIN pin. Be careful.
(1) At the time of voltage detection, the voltage regulator is shutdown and load
current is cut. Therefore, VIN pin voltage increases by ΔVIN=IIN×RIN, where the
current flowing into RIN is set to IIN. Hence, if ΔVIN exceeds hysterisis width
(VHYS), oscillation starts immediately after detection and continues. It is
necessary to set ΔVIN less than VHYS.
(2) At the time of voltage release, the voltage re gulator is powered on and load
current flows. Therefore, if ΔVIN exceeds hysterisis width (VHYS), oscillation
starts immediately after release and continues. It is necessary to set ΔVIN less
than VHYS. Also at the time of voltage release, the rush current to charge output
capacitor (COUT) flows. Hence, oscillation momentarily starts until the output of
regulator (VOUT) rises high enough even though ΔVIN is set less than VHYS. But
Short-circuit protection circuit controls the rush current le ss than IMAX on
Figure 19 to 21. If this momentary oscillation is a problem in your applicaion,
setting RIN less than VHYS/IMAX prevents oscillation.
VSS
VOR
VIN
VPF
VOUT
I
IN
R
IN
R
L
C
OUT
S-87xxxxCUP
Figure 23 Attention connecting example 1
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 31
S-87xxxxEUP
VSS
VOR
VIN
SENSE
VOUT
I
IN
R
IN
R
L
C
OUT
Figure 24 Attention connecting example 2
A drop in V
IN
due to
rush current
+
V
DET
Power Voltage
−
V
DET
V
HYS
ΔV
IN
V
IN
Voltage
V
OR
Figure 25 When ΔVIN>VHYS
2. In the E type, the minimum operati ng voltage becomes 2.0 V as VIN voltage. If a drop
in VIN voltage occurs due to load current or rush current to be charged to the output
capacitor when load current or the voltage regulator is powered on at the time of
release, set VIN to 2.0 V or more.
3. Also, in the E type, when sharply increasing only VIN pin voltage at 1 ms/V or less,
with the SENSE pin fixed to −VDET≥VSENSE≥−VDET−2 V, a release pulse is output to the
output pin of voltage detector. Be car eful. In this case, this release pulse is removed
by setting the time constant of VOR pin 20 ms or more with capacitance and pull-up
resistance. In addition, when the voltage of SENSE pin is fixed to between the
detection voltage and the release voltage at the detect condition, if sharply increasing
only VIN pin voltage at 1 ms/V or less, the output of the detector turns to the release
condition. If this action is a problem in your system, please connect SENSE pin to
VIN pin.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
32
6. Shutdown circuit (C/E/G type)
When VPF pin goes low (0.4 V or less) in the C/G type or at the time of voltage detection in the E type
current for the voltage regulator is shut down, the current consumption (excluding the current which flows
through the pull-up resistor) lowers to 3.5 μA or less.
During shutdown, the M1 transisto r in the voltage regulator shown in the Figure 17 is off and VOUT pin is
pulled down by R1 and R2, whose value (R1+R2) is 5 MΩ to 10 MΩ. Input current of VPF pin is 0.1 μA or
less.
Caution 1. The output voltage may not beco me 0 V when the load which makes IOUT under 1 μA is
connected during shutdown.
2. DO NOT keep
V
PF pin floating state or medium potential (between low and high
levels). Otherwise through-ty pe current flows.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 33
Transient Characteristics
An undershoot or an overshoot may occur in the output voltage of the voltage regulator if input voltage or
load current fluctuates transiently. If an undershoot is large, the voltage detector operates to output reset
signal in the B type in which the voltage detector detects the output voltage of the reg ulato r. If an overshoot
is large, the load circuit is adversely affected. Therefore it is important to determine the capacitor value so as
to minimize undershoot and overshoot.
1. Line: Transient characteristics due to input voltage fluctuation
Input voltage fluctuation differs dependin g on the types of the sign al applied: type 1 which is a rectangular
wave between (VOUT+1) V and 10 V, and type 2 which is a rectangular wave from 0 V to 10 V. (Refer to
Figure 26 to 27) The ringing wavefo rms and parameter dependency of each type are described below.
The measuring circuit is sh own in Figure 28 for reference.
Input voltage
Output voltage
deviation Overshoot
Undershoot
10 V
(V
OUT
+
1) V
Figure 26 Rectangular wave between (VOUT+1) V and 10 V (Type 1)
Input voltage
Output voltage
deviation
0 V 10 V
Undershoot
Overshoot
Remark Rise/fall time (time between 10 % and 90 %) is 1 μs.
Figure 27 Rectangular wave from 0 V to 10 V (Type 2)
VSS
S-87x Series
Fast amplifier
P.G.
VOUT
VIN
R
O
C
L
*1
Oscilloscope
10:1 probe
+
−
*1. AL electrolytic capacitor
Figure 28 Measuring circuit
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
34
Type 1 (Rectangle wave betw een (VOUT+1) V and 10 V)
10 V
I
OUT
=40 mA, C
L
=10 μF, Ta=25°C
5 ms/div
Output voltage
[200 mV/div]
Input voltage
[1 V/div] (V
OUT
+1) V
Overshoot amount: 350 mV
Undershoot amount: 325 mV
Figure 29 Ringing waveform (Type 1)
Table 20 Parameter dependency (Type 1)
Series Parameter Conditions
Method to decrease
overshoot Method to decrease
undershoot
S-8750xxx Load current (IOUT) 10 to 60 mA, CL=10 μF Decrease Decrease
Load capacitance (CL) 1 to 47 μF, IOUT=40 mA Increase Increase
Input fluctuation (ΔVIN*1) 2 to 4 V Decrease Decrease
4 to 18 V Increase Decrease
Temperature (Ta)
−40 °C to +85 °C Low temperature Low temperature
S-8730xxx Load current (IOUT) 10 to 60 mA, CL=10 μF Increase Decrease
Load capacitance (CL) 1 to 47 μF, IOUT=40 mA Increase Increase
Input fluctuation (ΔVIN*1) 4 to 20 V Increase Decrease
Temperature (Ta) −40 °C to +85 °C Low temperature Low temperature
*1. High voltage value − low voltage value
For reference, the following page s describe the ringing in VOUT measured using the output load current (IOUT),
output load capacitance (CL), input fluctuation width (ΔVIN), and temperature (T a) as parameters.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 35
Reference Data: Type 1
S-8750xxx Series
1. IOUT Dependency 2. CL Dependency
Ringing amount [mV]
500
400
300
200
100
0010203040506070
C
L
=10 μF, Ta=25°C
I
OUT
[mA]
Ringing amount [mV]
1600
1400
1200
1000
800
001020304050
C
L
[μF]
600
400
200
I
OUT
=40 mA, Ta=25°C
3. ΔVIN Dependency 4. Temperature Dependency
ΔV
IN
[V]
Ringing amount [mV]
500
400
300
200
100
00 5 10 15 20
I
OUT
=40 mA, C
L
=10 μF, Ta=25°C
Remark The lower voltage is fixed at 6 V.
Overshoot
Undershoot
Ta [°C]
Ringing amount [mV]
500
400
300
200
100
0
−
40
−
20 0 20 40 60 80 100
I
OUT
=40 mA, C
L
=10 μF
S-8730xxx Series
1. IOUT Dependency 2. CL Dependency
Ringing amount [mV]
500
400
300
200
100
0010203040506070
C
L
=10 μF, Ta=25°C
I
OUT
[mA]
600
Ringing amount [mV]
1600
1400
1200
1000
800
001020304050
C
L
[μF]
600
400
I
OUT
=40 mA, Ta=25°C
200
3. ΔVIN Dependency 4. Temperature Dependency
ΔV
IN
[V]
Ringing amoun t [mV]
500
400
300
200
100
00 5 10 15 25
I
OUT
=40 mA, C
L
=10 μF, Ta=25°C
20
Remark The lower voltage is fixed at 4 V.
Overshoot
Undershoot
Ta [°C]
Ringing amount [mV]
500
400
300
200
100
0
−
40
−
20 0 20 40 60 80 100
I
OUT
=40 mA, C
L
=10 μF
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
36
Type 2 (Rectangle wave form 0 V to 10 V)
10 V
I
OUT
=40 mA, C
L
=10 μF, Ta=25°C
0 V
5 ms/div
Output voltage
[500 mV/div]
Input voltage
[5 V/div]
Overshoot amount: 1300 mV
Undershoot amount: 610 mV
Figure 30 Ringing waveform (Type 2)
Table 21 Parameter dependency (Type 2)
Series Parameter Conditions
Method to decrease
overshoot Method to decrease
undershoot
S-8750xxx Load current (IOUT) 10 to 60 mA, CL=10 μF Increase Increase
Load capacitance (CL) 1 to 47 μF, IOUT=40 mA Decrease Decrease
Input fluctuation (ΔVIN*1) 8 to 24 V Increase Increase
Temperature (Ta)
−40 °C to +85 °C Low temperature Low temperature
S-8730xxx Load current (IOUT) 10 to 60 mA, CL=10 μF Increase Increase
Load capacitance (CL) 1 to 47 μF, IOUT=40 mA Decrease Decrease
Input fluctuation (ΔVIN*1) 8 to 24 V Increase Increase
Temperature (Ta) −40 °C to +85 °C Low temperature Low temperature
*1. High voltage value − 0 V
For reference, the following page s describe the ringing in VOUT measured using the output load current (IOUT),
output load capacitance (CL), input fluctuation width (ΔVIN), and temperature (T a) as parameters.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 37
Reference Data: Type 2
S-8750xxx Series
1. IOUT Dependency 2. CL Dependency
Ringing amount [mV]
200
150
100
50
0 0 10 20 30 40 50 60 70
C
L
=10 μF, Ta=25°C
I
OUT
[mA]
Ringing amount [mV]
200
150
100
50
00 10 20 30 40 50
C
L
[μF]
I
OUT
=
40 mA, Ta=25°C
3. ΔVIN Dependency 4. Temperature Dependency
ΔV
IN
[V]
Ringing amount [mV]
300
200
150
100
50
0 5 10 15 20 25
250 I
OUT
=40 mA, C
L
=10 μF, Ta=25°C
Remark The lower voltage is fixed at 0 V.
Overshoot
Undershoot
Ta [°C]
Ringing amount [mV]
250
200
150
100
50
0
−
40
−
20 0 20 40 60 80 100
I
OUT
=40 mA, C
L
=47 μF
S-8730xxxSeries
1. IOUT Dependency 2. CL Dependency
Ringing amoun t [mV]
I
OUT
[mA]
140
60
40
20
0 0 10 20 30 40 50 60 70
C
L
=10 μF, Ta=25°C
80
100
120
Ringing amount [mV]
120
00 10 20 30 40 50
C
L
[μF]
80
60
40
20
100 I
OUT
=40 mA, Ta=25°C
3. ΔVIN Dependency 4. Temperature Dependency
ΔV
IN
[V]
Ringing amount [mV]
0 0 5 10 15 20 25
140
60
40
20
80
100
120 I
OUT
=40 mA, C
L
=10 μF,
Ta=25°C
Remark The lower voltage is fixed at 0 V.
Undershoot
Overshoot
Ta [°C]
Ringing amount [mV]
0
−
40
−
20 0 20 40 60 80 100
140
60
40
80
100
120
20
I
OUT
=40 mA, C
L
=10 μF
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
38
2. Load transient response characteristics due to load current fluctuation
An overshoot and an undershoot are caused in the output voltage if the load current is changed from
50 μA to 40 mA while the input voltage is kept constant. Figure 31 shows the output voltage fluctuation
due to a change in the load current. The measuring circuit is shown in Figure 32 for reference. The
latter half of this section describes ringin g waveform and parameter dependency.
Overshoot
Load current
Output Voltage deviation Undershoot
40 mA
50
μ
A
Figure 31 Output voltage fluctu ation due to a change in the load current
VSS
VOUT
VIN
Oscilloscope
10:1 probe
R
0
*2
R
1
*1
Power
supply
S-87x
Series
C
L
*3
+
−
10 μF
+
−
*1. R1=A 50 ]V[V OUT
μ [Ω]
*2. R0=mA 40 ]V[V OUT [Ω]
*3. AL electrolytic capacitor Figure 32 Measuring circuit
Table 22 Parameter dependency due to load current fluctuation
Series Parameter Conditions
Method to decrease
overshoot Method to decrease
undershoot
Load current (IOUT) 10 to 60 mA, CL=10 μF Decrease Decrease
S-8750xxx,
S-8730xxx Load capacitance (CL) 1 to 47 μF, IOUT=40 mA Increase Increase
Power supply voltage (VIN) (VOUT+1) to 24 V Increase Increase
Temperature (Ta)
−40 °C to +85 °C Low temperature Low temperature
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 39
Reference Data
S-8750xxxSeries
1. IOUT Dependency 2. CL Dependency
Ringing amount [mV]
I
OUT
[mA]
350
150
100
50
0 0 10 20 30 40 50 60 70
200
250
300 C
L
=10 μF, Ta=25°C, V
IN
=10 V
Remark The lower current is fixed at 50 μA.
Ringing amount [mV]
800
00 10 20 30 40 50
CL [μF]
700
600
500
400
300
200
100
VIN=10 V, Ta=25°C
3. ΔVIN Dependency 4. Temperature Dependency
V
IN
[V]
Ringing amount [mV]
0 0 5 10 15 20 25
300
250
200
150
100
50
C
L
=10 μF, Ta=25°C
Overshoot
Undershoot
Ta [°C]
Ringing amount [mV]
0
−
40
−
20 0 20 40 60 80 100
C
L
=10 μF, V
IN
=10 V
300
250
200
150
100
50
S-8730xxxSeries
1. IOUT Dependency 2. CL Dependency
Ringing amount [mV]
I
OUT
[mA]
0 0 10 20 30 40 50 60 70
300
250
200
150
100
50
C
L
=10 μF, Ta=25°C, V
IN
=10 V
Remark The lower current is fixed at 50 μA.
Ringing amount [mV]
00C
L
[μF]
700
300
200
100
400
500
600
10 20 30 40 50
V
IN
=10 V, Ta=25°C
3. ΔVIN Dependency 4. Temperature Dependency
VIN [V]
Ringing amount [mV]
0 0 5 10 15 20 25
300
250
200
150
100
50
CL=10 μF, Ta=25°C
Overshoot
Undershoot Ta [°C]
Ringing amount [mV]
0
−
40
−
20 0 20 40 60 80 100
C
L
=10 μF, V
IN
=10 V
300
250
200
150
100
50
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
40
Standard Circuits
1. A/B/F type
VIN
VSS
VOUT
VOR
CD
C
I
R
L
C
L
V
OUT
V
OR
+
−
+
− 10 μF
10
μ
F
Figure 33
2. C/G type
VIN
VSS
VOUT
VOR
C
I
R
L
C
L
V
OUT
V
OR
VPF
+
−
+
−
10
μ
F
10 μF
Figure 34
3. E type
VIN
VSS
VOUT
VOR
C
I
R
L
C
L
V
OUT
V
OR
SENSE
+
−
+
−
10
μ
F
10 μF
Figure 35
Caution The above connection diagr am and constants do not guarantee correct opera tion. Perform
sufficient evaluation using the ac tual application to set the constants.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 41
Application Circuits
1. Microcomputer power supply and reset circuit
To construct a microcomputer power supply and a reset circuit using conventio nal ICs, a voltage regulator
IC, a voltage detector IC, a delay time generation circuit and others are required. The A/B type allows
you to make these circuits without these ICs, and the delay time is variable.
C
D
100 k
Ω
CD VOR
VIN
V
SS
VOUT
RESET
CPU
V
OUT
Figure 36
Caution The above connection diagr am and constants do not guarantee correct opera tion.
Perform sufficient evaluation using the actual application to set the constants.
2. Output current boost ci rcuit
A PNP transistor is used to increase the output current.
1. A/ B type
V
SS
V
OR
V
OUT
V
IN
VOR
CD
VIN
VSS
VOUT
Figure 37
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
42
2. C/ G type
V
SS
V
OR
V
OUT
V
IN
VOR
VIN
VSS
VOUT
VPF
Figure 38
Caution The above connection diagr am and constants do not guarantee correct opera tion.
Perform sufficient evaluation using the actual application to set the constants.
3. Power supply for lithium-ion battery pack
When the lithium-ion battery goes down to the overdischarge voltage, the built-in voltage detec tor powers
OFF the voltage regulator, and at the same time it transmits the RESET signal to the microcomputer. R1,
C1, R2 and C2 are attached to eliminate the voltage exceeding the absolute maximum rating s of charger.
C3 is attached to give a delay and to release the RESET signal after power supply voltage for
microcomputer (VOUT) rise s high enough.
SENSE
VOR
VIN
VSS
VOUT
S-87xxxxE
Series
RESET
Micro-computer
10 μF
R
3
100 kΩ
C
3
C
2
0.1 μF
C
1
0.1 μF
R
2
330 Ω
Li
R
1
330 Ω
Charger
Figure 39
Caution The above connection diagr am and constants do not guarantee correct opera tion.
Perform sufficient evaluation using the actual application to set the constants.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 43
Precautions
• DO NOT apply a ripple voltage of the following both con dition s to VIN pin.
T (cycle)
*1
V
PP
*2
V
[V]
t [s]
*1. f≥1000 Hz (f=T
1) (“f” shows the frequency)
*2. VPP≥0.5 V Figure 40
• When connecting another power supply to the voltage regulator output pin, insert a diode to protect the IC.
VSS
VIN VOUT
V/R OU
T
Figure 41
• Do not apply an electrostatic discharg e to this IC that exceeds the perfo rmance ratings of the built-in
electrostatic protection circuit.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
44
Characteristics (Typical Data)
1. Voltage regulator
(1) Output voltage (VOUT) - Temperature (Ta) characteristics
S-8750xxx Series S-8730xxx Series
5.10
5.05
5.00
4.95
−50 −25 0 25 50 75 100
Ta [°C]
V
OUT
[V]
4.90
3.10
3.05
3.00
2.95
2.90
−
50
−
25 0 25 50 75 100
Ta [°C]
V
OUT
[V]
(2) Line regulation(ΔVOUT1) - Temperature (Ta) characteristics
S-8750xxx Series S-8730xxx Series
20
15
10
5
−50 −25 0 25 50 75 100
Ta [°C]
ΔV
OUT1
[mV]
0
20
15
10
5
−
50
−
25 0 25 50 75 100
Ta [°C]
ΔVOUT1 [mV]
0
(3) Input voltage (VIN) - O utput voltage (VOUT) characteristics
S-8750xxx Series S-8730xxx Series
5.8
4.0 4.5 6.5
V
IN
[V]
V
OUT
[V]
1 mA
10 mA
20 mA
30 mA
40 mA
50 mA
I
OUT
=50 μA
5.0
5.5
3.8
2.0 2.5 4.5
V
IN
[V]
1 mA
10 mA
20 mA
30 mA
40 mA
50 mA
V
OUT
[V]
3.5
3.0 I
OUT
=
50
μ
A
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 45
(4) Load regulation(ΔVOUT2) - Temperature (Ta) characteristics
S-8750xxx Series S-8730xxx Series
20
15
10
5
−50 −25 0 25 50 75 100
Ta [°C]
0
ΔV
OUT2
[mV]
−
50
−
25 0 25 50 75 100
Ta [°C]
20
15
10
5
0
ΔV
OUT2
(mV)
(5) I/O voltage difference (V dif) - Temperature (Ta) characteristics
S-8750xxx Series S-8730xxx Series
250
200
150
100
−50 −25 0 255075100
Ta [°C]
0
50
V
dif
[mV]
−
50
−
25 0255075100
Ta [°C]
700
600
500
400
300
200
100
0
V
dif
[mV]
(6) Short-circuit protection circuit ch aracteristics
S-8750xxx Series (Ta=25°C)
6.00
0 30 60 90 120 150 180
IOUT [mA]
VOUT [V]
5.00
4.00
3.00
2.00
1.00
0.00
VIN=24 V
6.00
0 306090120 150180
V
OUT
[V]
5.00
4.00
3.00
2.00
1.00
0.00
V
IN
=
10 V
210 240
I
OUT
[mA]
6.00
0 30 60 90 120 150 180
V
OUT
[V]
5.00
4.00
3.00
2.00
1.00
0.00
V
IN
=
8 V
210 240 270 300
I
OUT
[mA]
6.00
0 30 60 90 120 150 180
V
OUT
[V]
5.00
4.00
3.00
2.00
1.00
0.00
V
IN
=6 V
210 240
I
OUT
[mA]
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
46
S-8730xxx Series (Ta=25°C) S-8730xxx Series
4.00
3.00
2.00
1.00
0 30 60 90 120 150 180
IOUT [mA]
VOUT [V]
0.00
VIN=24 V
4.00
3.00
2.00
1.00
0 30 60 90 120 150 180
I
OUT
[mA]
V
OUT
[V]
0.00
V
IN
=
8 V
210
4.00
3.00
2.00
1.00
0I
OUT
[mA]
V
OUT
[V]
0.00
V
IN
=
6 V
30 60 90 120 150 180 210 240
4.00
3.00
2.00
1.00
0 30 60 90 120 150
IOUT [mA]
VOUT [V]
0.00
VIN=4 V
(7) Ripple rejection characteristics
S-8750xxx Series
−10
−60
10
Gain
[db]
f [HZ]
100 1k 10k 100k
−20
−30
−40
−50
VIN=7 V
IOUT=40 mA
CL=10 μF
S-8730xxx Series
−10
−60
10
Gain
[db]
f [HZ]
100 1k 10k 100k
−20
−30
−40
−50
V
IN
=5 V
I
OUT
=40 mA
C
L
=10 μF
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 47
2. Voltage detector
(1) Detection voltage (VDET) - Temperature (Ta) characteristics
S-875045 S-875043
20
10
0
−10
−50 −25 0 25 50 75 100
Ta [°C]
ΔVDET [mV]
−20
20
10
0
−
10
−
20
−
50
−
25 0 25 50 75 100
Ta [°C]
ΔV
DET
[mV]
S-873023
−50 −25 0 25 50 75 100
Ta [°C]
20
10
0
−10
ΔV
DET
[mV]
−20
(2) Hysteresis width (VHYS) - Temperature (Ta) characteristics
S-875045 S-875043
2.5
2
1.5
−50 −25 0 25 50 75 100
Ta [°C]
V
HYS
[%]
1
8
−
50
−
25 0 25 50 75 100
Ta [°C]
7
6
5
4
3
V
HYS
[%]
S-873023
8
−50 −25 0 25 50 75 100
Ta [°C]
7
6
5
4
3
V
HYS
[%]
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series Rev.8.0_00
Seiko Instruments Inc.
48
(3) Nch transistor output current (IDOUT) characteristics
V
DS
[V]
00.0 2.0
Ta=25°C
15
I
DOUT
[mA]
V
IN
=
3.6
V
V
IN
=
2.4
V
V
IN
=
1.3
V
1.0
5
10
(4) Delay tim e (tpd) characteristics
Delay time (tpd) - Temper ature (Ta)
50
−50 −25 0 25 50 75 100
Ta [°C]
30
40
20
10
0
V
IN
=10 V
C
D
=4.7 nF
t
pd
[ms]
3. Total
(1) Current consumption (Iss) ch aracteristics
(a) Input voltage(VIN) characteristic s
S-8750xxC Series S-8730xxC Series
V
IN
[V]
0
0 25
5
I
SS
[μA]
Ta=25°C
1
2
3
4
5 10 15 20
V
IN
[V]
I
SS
[μA]
Ta=25°C
0025
5
1
2
3
4
5 10 15 20
(b) Current consumption (Iss) - T emperature (Ta) characteristics
S-8750xxC Series S-8730xxC Series
10
7.5
5
2.5
−50 −25 0 25 50 75 100
Ta [°C]
I
SS
[μA]
0
V
IN
=7 V
10
7.5
5
2.5
−
50
−
25 0 25 50 75 100
Ta [°C]
I
SS
[μA]
0
V
IN
=5 V
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.8.0_00 S-87x Series
Seiko Instruments Inc. 49
(2) Input voltage of shut down circuit characteristics
(a) High level input voltage (V IH) - Temperature (Ta)
characteristics (b) Low level input voltage (V IL) - Temperature (Ta)
characteristics
2
1.5
1
0.5
−50 −25 0 25 50 75 100
Ta [°C]
V
IH
[V]
0
V
IN
=6 V
1
0.75
0.5
0.25
−
50
−
25 0 25 50 75 100
Ta [°C]
V
IL
[V]
0
V
IN
=6 V
(c) VIH, VIL - Power supply voltage dependency characteristics
V
IN
[V]
0.0 0 24
3.0
V
IH
, V
IL
[V]
Ta=25°C
12
0.6
1.2
1.8
2.4
V
IH
V
IL
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
1.5±0.1 1.5±0.1
1.6±0.2
4.5±0.1
132
1.5±0.1
0.4±0.05
0.4±0.1
0.45±0.1
0.4±0.1
45°
0.3
54
No. UP005-A-P-SD-1.1
UP005-A-P-SD-1.1
SOT895-A-PKG Dimensions
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
2.0±0.1
0.3±0.05
8.0±0.1
ø1.5+0.1
-0
2.0±0.05
ø1.5+0.1
-0
4.75±0.1
5° max.
1
32
54
No. UP005-A-C-SD-1.1
UP005-A-C-SD-1.1
SOT895-A-Carrier Tape
Feed direction
4.0±0.1(10 pitches : 40.0±0.2)
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
16.5max.
13.0±0.3
QTY. 1,000
(60°)
(60°)
No. UP005-A-R-SD-1.1
UP005-A-R-SD-1.1
SOT895-A-Reel
Enlarged drawing in the central part
www.sii-ic.com
• The information described herein is subject to change without notice.
• Seiko Instruments Inc. is not responsible for any problems caused by circuits or diagrams described herein
whose related industrial properties, patents, or other rights belong to third parties. The application circuit
examples explain typical applications of the products, and do not guarantee the success of any specific
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• When the products described herein are regulated products subject to the Wassenaar Arrangement or other
agreements, they may not be exported without authorization from the approp riate governmental authority.
• Use of the information described herein for other purposes and/or reproduction or copying without the
express permissi on of Seiko Instruments Inc. is strictly prohibited.
• The products described herein cannot be used as part of any device or equipment affecting the human
body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus
installed in airplanes and other vehicle s, without prior written permission of Seiko Instrum ents Inc.
• The products described herein are not designed to be radiation-proof.
• Although Seiko Instruments Inc. exerts the greatest possible effort to ensure high quality and reliability, the
failure or malfunction of semiconductor products may occur. The user of these products should therefore
give thorough consideration to safety design, including redundancy, fire-prevention measures, and
malfunction prevention, to prevent any accidents, fires, or comm unity damage that may ensue.
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Authorized Distributor
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S-875061EUP-AJHT2G S-875037GUP-ANET2G S-875039CUP-ACDT2G S-873069CUP-AFFT2G S-875037BUP-
ABET2G S-875043BUP-ABBT2G S-875039AUP-AADT2G S-875039BUP-ABDT2G S-875294CUP-AHCT2G S-
873024BUP-AEBT2G S-875255CUP-AHBT2G S-875045CUP-ACAT2G S-875077EUP-AJFT2G S-873325BUP-
ALAT2G S-873025BUP-AEAT2G S-875041BUP-ABCT2G S-873082EUP-AMCT2G S-875037CUP-ACET2G S-
875077CUP-ACFT2G S-873330EUP-APBT2G S-875045AUP-AAAT2G S-873025AUP-ADAT2G S-873025CUP-
AFAT2G S-8750B0CUP-ACGT2G S-873062EUP-AMBT2G S-875271CUP-AHAT2G S-875061CUP-ACHT2G S-
875041CUP-ACCT2G
