The following document contains information on Cypress products.
DS04-27400-11Ea
FUJITSU MICROELECTRONICS
DATA SHEET
Copyright©2003-2008 FUJITSU MICROELECTRONICS LIMITED All rights reserved
2006.5
ASSP For power supply applications
BIPOLAR
Power Supply Monitor
MB3771
■DESCRIPTION
The Fujitsu Microelectronics MB3771 is designed to monitor the voltage level of one or two power supplies (+5
V and an arbitrary voltage) in a microprocessor circuit, memory board in large-size computer, for example.
If the circuit’s pow er supply de viates more th an a specified am ount, then the MB3771 gener ates a reset signal to
the microproc es sor. Thus, the comp ut er dat a is protected f rom accidental erasure.
Using the MB3 771 requires few exter nal compon ents. To monitor only a +5 V supply, the MB3771 re quires the
connection of one external capacitor. The level of an arbitrary detection voltage is determined by two external
resistors. The MB3771 is av ailable in an 8-pin Dual In-Line, Single In-Line Package or space saving Flat Package.
■FEATURES
• Precision voltage detection (VSA = 4.2 V ± 2.5 %)
• User selectable threshold level with hysteresis (VSB = 1.23 V ± 1.5 %)
• Monitors the voltage of one or two power supplies (5 V and an arbitrary voltage, >1.23 V)
• Usable as over voltage detector
• Low voltage output for reset signal (VCC = 0.8 V Typ)
• Minimal number of external components (one capacitor Min)
• Low power dissipation (ICC = 0.35 mA Typ, VCC = 5 V)
• Detection threshold voltage has hysteresis function
• Reference voltage is connectable.
• One type of package (SOP-8pin : 1 type)
■APPLICATION
• Industrial Equipment
• Arcade Amusement etc.
MB3771
2
■PIN ASSIGNMENT
■BLOCK DIAGRAM
CT
VSC
OUTC
GND
RESET
VSA
VSB /RESIN
VCC
1
2
3
4
8
7
6
5
(TOP VIEW)
(FPT-8P-M01)
V
SA
V
SB
/
RESIN
RESET
≅ 1.24 V
≅ 12 µA≅ 10 µA
≅ 1.24 V
REFERENCE VOLTAGE
≅ 40 kΩ
−
+
Comp. A
Comp. B R
S
Q
VCC
VSC
GND
C
T
OUT
C
7
6
5
2
4
38
1
Comp. C
+
−
−
+
++
−
−
≅ 100 kΩ
MB3771
3
■FUNCTIONAL DESCRIPTIONS
Comparators Comp .A and Comp .B apply a h ysteresis to the detected v oltage, so that when the voltage at eith er
the VSA or VSB pin falls below 1.23 V the RESET output signal goes to “low” level.
Comp. B may be used to detect any given v oltage(APPLICATION CIRCUIT 3 : Arbitrary V oltage Supply Monitor),
and can also be used as a forced reset pin (with reset hold time) with TTL input (APPLICATION CIRCUIT 6 :
5V Power Supply Monitor with forced RESET input (VCC = 5 V) ).
Note that if Comp .B is not used, the VSB pin should be connected to the VCC pin (APPLICATION CIRCUIT 1 : 5V
Power Supply Monitor ).
Instantaneous breaks or drops in the power supply can be detected as abnormal conditions by the MB3771
within a 2 µs inter val. However because momen tary breaks or dr ops of this duration do no t caus e problems in
actual systems in some cases , a delayed trigger function can b e created by conn ecting capacit ors to the VSA or
VSB pin (APPLICATION CIRCUIT 8 : Supply Voltage Monitoring with Delayed Trigger).
Because the RESET output has built-in pull-up resistance, there is no need to connect to external pull-up
resistance when connected to a high impedance load such as a CMOS logic IC.
Comparator Comp. C is an open-collector output comparator without hysteresis, in which the polarity of input/
output characteristics is reversed. Thus Comp. C is useful for over-voltage detection (APPLICATION CIR CUIT
11 : Low V oltage and Over V oltage Detection (VCC = 5 V) ) and positive logic RESET signal output (APPLICA TION
CIRCUIT 7 : 5 V Power Supply Monitor with Non-inve rted RESET), as well as for creating a reference voltage
(APPLICATION CIRCUIT 10 : Reference Voltage Generation and Voltage Sagging Detection).
Note that if Comp. C is not used, the VSC pin should be connected to the GND pin (APPLICATION CIRCUIT 1 :
5V Power Supply Monitor).
■FUNCTION EXPLANATION
(1) When VCC r ise s to ab ou t 0. 8V, RESET goes low.
(2) When VCC reaches VS +VHYS, CT then begins charging. RESET remains low during this time
(3) RESET goes high when CT begins charging.
TPO := CT × 10 5 (Refer to “CT pin capacitance vs. reset hold time” in “TYPICAL CHARACTERISTICS”.)
(4) When VCC level drops lower then VS, then RESET goes low and CT starts discharging.
(5) When VCC level reaches VS + VHYS, then CT starts charging.
In the case of v oltage sagging, if the period from the time VCC goes lo wer than or equal to VS to the tim e VCC
reaches VS +VHYS again, is longer than tPI, (as specified in the AC Characteristics), CT is discharged and
charged successively.
(6) After TPO passes, and VCC level exceeds VS + VHYS, then RESET goes high.
(7) Same as Point 4.
(8) RESET remains low until VCC drops below 0.8V.
VCC
CTRESET
1
2
3
4
8
7
6
5RESET
VCC
VS
0.8 V
VHYS
(1) (2) (3) (4) (5) (6) (7) (8)
TPO TPO
t
t
MB3771
4
■ABSOLUTE MAXIMUM RATINGS
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings . Do not exceed these ratings.
■RECOMMENDED OPERATING CONDITIONS
WARNING: The recommended operating condition s are required in order to ensure the normal operation of the
semiconductor device. All of the device’s electrical characteristics are warranted when the device is
operated within these ranges.
Always use semiconduct or devices within th eir recommended operating cond ition ranges. Operation
outside these ranges may adversely affect reliability and could result in device failure.
No warranty is made with respect to uses, operating conditions, or combinations not represented on
the data sheet. Users considering application outside the listed conditions are advised to contact their
representatives beforehand.
Parameter Symbol Rating Unit
Min Max
Power supply voltage VCC −0.3 +20 V
Input voltage
VSA −0.3 VCC + 0.3 ( < +20) V
VSB −0.3 +20 V
VSC −0.3 +20 V
Power dissipation PD⎯200 (Ta ≤ 85 °C) mW
Storage temperature Tstg −55 +125 °C
Parameter Symbol Value Unit
Min Max
Power supply voltage VCC 3.5 18 V
Output current IRESET 020mA
IOUTC 06mA
Operating ambient temperature Ta −40 +85 °C
MB3771
5
■ELECTRICAL CHARACTERISTICS
1. DC Characteristics (VCC = 5 V, Ta = + 25 °C)
Parameter Symbol Conditions Value Unit
Min Typ Max
Power supply current ICC1 VSB = 5 V, VSC = 0 V ⎯350 500 µA
ICC2 VSB = 0 V, VSC = 0 V ⎯400 600 µA
Detection voltage
VSAL
(DOWN) VCC 4.10 4.20 4.30 V
Ta = −40 °C to +85 °C 4.05 4.20 4.35 V
VSAH (UP) VCC 4.20 4.30 4.40 V
Ta = −40 °C to +85 °C 4.15 4.30 4.45 V
Hysteresis width VHYSA ⎯50 100 150 mV
Detection voltage VSB VSB 1.212 1.230 1.248 V
Ta = −40 °C to +85 °C 1.200 1.230 1.260 V
Deviation of detection voltage ∆VSB VCC = 3.5 V to 18 V ⎯310mV
Hysteresis width VHYSB ⎯14 28 42 mV
Input current IIHB VSB = 5 V ⎯0250nA
IILB VSB = 0 V ⎯20 250 nA
Output voltage
VOHR IRESET = −5 µA, VSB = 5 V 4.5 4.9 ⎯V
VOLR IRESET = 3mA, VSB = 0 V ⎯0.28 0.4 V
IRESET = 10mA, VSB = 0 V ⎯0.38 0.5 V
Output sink current IRESET VOLR = 1.0 V, VSB = 0 V 20 40 ⎯mA
CT charge cur re nt ICT VSB = 5 V, VCT = 0.5 V 9 12 16 µA
Input current IIHC VSC = 5 V ⎯0500nA
IILC VSC = 0 V ⎯50 500 nA
Detection voltage VSC ⎯1.225 1.245 1.265 V
Ta = −40 °C to +85 °C 1.205 1.245 1.285 V
Deviation of detection voltage ∆VSC VCC = 3.5 V to 18 V ⎯310mV
Output leakage current IOHC VOHC = 18 V ⎯01 µA
Output voltage VOLC IOUTC = 4 mA, VSC = 5 V ⎯0.15 0.4 V
Output sink current IOUTC VOLC = 1.0 V, VSC = 5 V 6 15 ⎯mA
Reset operation minimum
supply voltage VCCL VOLR = 0.4 V, IRESET = 200 µA⎯0.8 1.2 V
MB3771
6
2. AC Characteristics (VCC = 5 V, Ta = + 25 °C, CT = 0.01 µF)
*1: In case of VSB termination.
*2: In case of VSC termination.
Parameter Symbol Conditions Value Unit
Min Typ Max
VSA, VSB input pulse width tPI ⎯5.0 ⎯⎯µs
Reset hold time tPO ⎯0.5 1.0 1.5 ms
RESET rise time trRL = 2.2 kΩ,
CL = 100 pF
⎯1.0 1.5 µs
RESET fall time tf⎯0.1 0.5 µs
Propagation delay time
tPD*1⎯⎯210 µs
tPHL*2RL = 2.2 kΩ,
CL = 100 pF
⎯0.5 ⎯ µs
tPLH*2⎯1.0 ⎯ µs
MB3771
7
■APPLICATION CIRCUIT
1. 5V Power Supply Monitor
Monitored by VSA. Detection threshold voltage is VSAL and VSAH
2. 5V Power Supply Voltage Monitor (Externally Fine-Tuned Type)
The VSA detection voltage can be adjusted externally.
Resistance R1 and R2 are set sufficiently lower than the IC internal partial voltage resistance, so that the detection
voltage can be set using the ratio between resistance R1 and R2. (Refer to the table below).
•R
1, R2 calculation formula (w hen R1 << 100 kΩ, R2 <<40 kΩ)
VSAL := (R1 + R2 ) × VSB /R2 [V], VSAH := (R1 + R2 ) × (VSB + VHYSB) / R2 [V]
R1 (kΩ)R2 (kΩ)Detection voltage : VSAL (V) Detection voltage : VSAH (V)
10 3.9 4.37 4.47
9.1 3.9 4.11 4.20
VCC
CT
RESET
MB3771
1
2
3
4
8
7
6
5Logic
circuit
V
CC
C
T
RESET
MB3771
1
2
3
4
8
7
6
5
R
1
R
2
Logic
Circuit
MB3771
8
3. Arbitrary Voltage Supply Monitor
(1) Case: VCC ≤ 18 V
• Detection Voltage can be set by R1 and R2.
Detection Voltage = (R1 + R2) × VSB/R2
• Connect Pin 7 to VCC when VCC less than 4.45 V.
• Pin 7 can be opened when VCC greater than 4.45 V
Power Dissipation can be reduced.
Note : Hysteresis of 28 mV at VSB at termination is available.
Hysteres is width dos e no t de pe n d on (R 1 + R2).
(2) Monitoring VCC > 18 V
• Detection Voltage can be set by R1 and R2
Detection Voltage = (R1 + R2) × VSB/R2
• The RESET signal output is := 0V (low level) and := 5 V (high level). VCC voltage cannot be output.
Do not pull up RESET to VCC.
• Changing the resistance rat io betwe en R4 and R 5 change s the con stant voltage output, thereby changing the
v oltage of the high level RESET outpu t. Note that the constant voltage output should not exceed 18 V.
• The 5 V output can be used as a power supply for control circuits with low current consumption.
• In setting the R3 resistance level, caution sho uld be given to the po w er con sumption in the resist or. The tab le
below lists sample resistance values for reference (using 1/4 Ω resistance).
• Values a re ac tu al m e asured values ( us ing IOUTC = 100 µA, VOLC = 0.4 V). Lowering the resistance value of R3
reduces the minimum supply v oltage of the RESET output, but requires resistance with higher allowab le loss.
VCC (V) Detection
voltage (V) RESET Output min.
power sup ply v ol tage (V) R1 (MΩ) R2 (kΩ) R3 (kΩ) Output Current
(mA)
140 100 6.7 1.6 20 110 < 0.2
100 81 3.8 1.3 20 56 < 0.5
40 33 1.4 0.51 20 11 < 1.6
VCC
CT
RESET
MB3771
1
2
3
4
8
7
6
5
R1
R2
V
CC
C
T
RESET
1
2
3
4
8
7
6
5
R
3
R
1
R
2
R
4
:
R
5
:
33 kΩ
0.47 µF
100 kΩ
5 V output(Stablized)
MB3771
9
4. 5 V and 12 V Power Supply Monitor (2 types of power supply monitor VCC1 = 5 V, VCC2 =12 V)
• 5 V is monitored by VSA. Detection v oltage is about 4.2 V
• 12 V is mo nitored by VSB. When R1 = 390 kΩ and R2 = 62 kΩ, Detec tion voltage is about 9.0 V.Generally the
detection voltage is determined by the following equation.
Detection Voltage = (R1 + R2) × VSB/R2
5. 5 V and 12 V Power Supply Monitor (RESET signal is generated b y 5 V, VCC1 = 5 V, VCC2 = 12 V)
• 5 V is monitored by VSA, and generates RESET signal when VSA detects voltage sagging.
• 12 V is monitored by VSC, and generates its detection signal at OUT C.
• The detection voltage of 12 V monitoring and its hysteresis is determined by the following equations.
Detection voltage = R1 + R2 + R3 × VSC (8.95 V in the circuit above)
R2 + R3
Hysteresis width = R1 (R3 − R3 // R4) × VSC (200 mV in the circuit above)
(R2 + R3) (R2 + R3 // R4)
V
CC2
C
T
MB3771
1
2
3
4
8
7
6
5
R
1
: 390 kΩ
R
2
: 62 kΩ
RESET
V
CC1
Logic
circuit
VCC2
CT
MB3771
1
2
3
4
8
7
6
5
R1: 390 kΩ
R2: 33 kΩ
RESET
VCC1
IRQ
R L: 10 kΩ
R5: 100 kΩ
R3: 30 kΩ
R4: 510 kΩ
or
Port Logic Circuit
MB3771
10
6. 5 V Power Supply Monitor with forced RESET input (VCC = 5 V)
RESIN is an TTL compatible input.
7. 5 V Power Supply Monitor with Non-inverted RESET
In this case, Comparator C is used to invert RESET signal. OUTC is an open-collector output.
RL is used an a pull-up resist or.
8. Supply Voltage Monitoring with Delayed Trigger
When the voltage shown in the diagram below is applied at VCC, the minimum value of the input pulse width is
increased to 40 µs (when C1 = 1000 pF).
The formula for calculating the minimum value of the input pulse width [TPI] is:
TPI [µs] := 4 × 10-2 × C1 [pF]
RESIN
CT
MB3771
1
2
3
4
8
7
6
5
RESET
VCC
Logic Circuit
CT
MB3771
1
2
3
4
8
7
6
5
RL: 10 kΩ
VCC
RESET
CT
MB3771
1
2
3
4
8
7
6
5
VCC
TP
RESET
C1
5 V
4 V
MB3771
11
9. Dual (Positive/Negative) Power Supply Voltage Monitoring (VCC = 5 V, VEE = Negative Power
Supply)
Monitors a 5 V and a negative (any given level) power supply. R1, R2, and R3 should be the same value.
Detection Voltage = VSB − VSB × R4/R3
Example if VEE = −5 V, R4 = 91 kΩ
Then the detected voltage = −4.37 V
In cases wher e VEE may be output when VCC is not output, it is necessary to use a Schottky barrier diod e (SBD).
10. Reference Voltage Generation and Voltage Sagging Detection
(1) 9V Reference Voltage Generation and 5V/9V Monitoring
Detection Voltage = 7.2 V
In the abo v e e xample s, the output v oltag e and the det ection v oltage ar e determined by the f ollo wing equations:
Detection Voltage = (R1 + R2) × VSB/R2
C
T
MB3771
1
2
3
4
8
7
6
5
RESET
V
CC
V
EE
0.22 µF
R
4
R
5
: 5.1 kΩ
R
3
:
20 kΩ
R
1
: 20 kΩ
R
2
: 20 kΩ
SBD
C
T
MB3771
1
2
3
4
8
7
6
5
RESET
V
CC
: 5 V
0.47 µF
R
5
: 3 kΩ
R
3
:
7.5 kΩR
1
: 300 kΩ
R
2
: 62 kΩ
R
4
:
1.2 kΩ
15 V
9 V (≅ 50 mA)
MB3771
12
(2) 5 V Reference Voltage Generation and 5V Monitoring (No.1)
Detection Voltage = 4.2 V
In the abo v e e xample s, the output v oltage and the det ection v oltage ar e determined by the f ollo wing equations:
Output Voltage = (R3 + R4) × VSC/R4
(3) 5 V Reference Voltage Generation and 5 V Monitoring (No. 2)
The value of R1 should be calculated from the current consumption of the MB3771, the current flowing at R2 and
R3, and the 5 V output current. The tabl e below provides sample resistance values for reference.
(4) 1.245 V Reference Voltage Generation and 5 V Monitoring
Resistor R1 determines Reference current. Using 1.2 kΩ as R1, reference current is about 2 mA.
VCC (V) R1 (kΩ) Output Current (mA)
40 11 < 1.6
24 6.2 < 1.4
15 4.7 < 0.6
CT
MB3771
1
2
3
4
8
7
6
5
RESET
0.47 µF
R5 : 3 kΩ
R3 : 3.6 kΩ
R4 : 1.2 kΩ
15 V
5 V(≅ 50 mA)
CT
1
2
3
4
8
7
6
5
RESET
VCC
0.47 µF
R3 : 33 kΩ
R1
R2 :
100 kΩ
5 V
GND
C
T
1
2
3
4
8
7
6
5
RESET
V
CC
(5 V)
0.47 µF
R
1
: 10 kΩ
GND
Reference Volt ag e
1.245 V Typ
MB3771
13
11. Low Voltage and Over Voltage Detection (VCC = 5 V)
VSH has no hysteresis. When over vo ltage is detected, RESET is held in th e constant time as well as when
low voltage is detected.
VSL = (R1 + R2) × VSB/R2
VSH = (R3 + R4) × VSC/R4
12. Detection of Abnormal State of Power Supply System (VCC = 5 V)
• This Example circuit detects abnormal low/over voltage of power supply voltage and is indicated by LED
indicator. LED is reset by the CLEAR key.
• The detection levels of low/over voltages are determined by VSA, and R 1 and R2 respectively.
C
T
1
2
3
4
8
7
6
5
RESET
V
CC
R
1
MB3771
R
2
R
3
R
4
RESET
V
CC
V
SL
V
SH
1
2
3
4
8
7
6
5
VCC
R1MB3771 R3: 620 Ω
R4:
1 kΩ to 100 kΩ
CLEAR
R2
LED
MB3771
14
13. Back-up Power Supply System (VCC = 5 V)
• Use CMOS Logic and connect VDD of CMOS logic with VCCO.
• The back-up battery works after CS goes high as V2 < V1.
• During tPO, memor y acc ess is prohibited.
• CS‘s threshold volt age V1 is determined by the following equation:
V1 = VF + (R1 + R2 + R3) × VSB/R3
When V1 is 4.45 V or less, connect 7 pin with VCC.
When V1 is 4.45 V or more, 7 pin can be used to open.
• The voltage to change V2 is provided as the following equation:
V2 = VF + (R1 + R2 + R3) × VSC/ (R2 + R3)
However, please set V2 to 3.5 V or more.
VCC
V1
V2
CS
VCCO
TPO
t
t
t
1
2
3
4
8
7
6
5
V
CC
MB3771
R
3
: 56 kΩ
C
T
R
2
: 6.2 kΩ
R
1
: 100 kΩ
R
4
>1 kΩ
R
5
: 100 kΩ
R
6
: 100 kΩV
CCO
CS
D
1
V
F
0.6 V
* : Diode has been added to prevent Comp.C from malfunctioning when VCC voltage is low.
Set V1 and V2 with care given to VF temperature char acteristics (typically negative temperature
characteristics).
MB3771
15
■TYPICAL CHARACTERISTICS
(Continued)
700
600
500
400
300
200
100
00 5 10 15 20
+85°C
+25°C
−40°C
+85°C
−40°C
+25°C
700
600
500
400
300
200
100
00 5 10 15 20
+85°C
+25°C
−40°C
5
4
3
2
1
0012345
Ta =
+25°C−40°C
+85°C4.0
−50 −25 0 +25 +50 +75 +100
4.1
4.2
4.3
4.4
4.5
VSAH
VSAL
1.20
−50 −25 0 +25 +50 +75 +100
1.25
1.30
VSBH
VSBL
1.20
−50 −25 0 +25 +50 +75 +100
1.25
1.30
−40°C
+25°C
Ta =
Ta =
+85°C
Power supply current ICC1 (µA)
Power supply current (ICC1) vs.
power supply voltage Detection voltage (VSC) vs.
Operating ambient temperature
Power supply current (ICC2) vs.
power supply voltage
Output voltage (RESET) vs. power supply voltage
Power supply voltage VCC (V)
Power supply voltage VCC (V)
Power supply voltage VCC (V)
Detecti on vo lt ag e VSC (V)
Detection voltage VSBH,VSBL (V)
Power supply current ICC2 (µA)
Output voltage V RESET (V)
Detection vo l tage VSAH,VSAL (V)
Operating ambien t tempera ture Ta (°C)
Detection voltage (VSB) vs.
Operating ambient temperature
Operating ambient temperature Ta (°C)
Detection voltage (VSA) vs.
Operating ambient temperature
Operating ambient temperature Ta (°C)
MB3771
16
(Continued)
1.27
1.26
1.25
1.24
1.23
1.22
1.21
1.20
0 5 10 15 20
0 5 10 15 20
0102030 5040
0− 5−10 −15
5.0
4.5
4.0
1.5
1.0
0.5
0
2.0
1.0
0
1.0
0.5
0
10
1
100 m
10 m
1 m
100 µ
10 µ
1 µ10 p
100 p1000 p
0.01µ1 p 0.1 µ1 µ10 µ100 µ0 5 10 15 20
VSBH
VSC
VSBL Ta =
+85°C
+25°C
Ta =
− 40°C
Ta =
+85°C
+85°C
+25°C
− 40°C
Ta =
− 40°C
− 40°C
− 40°C
+25°C
+85°C
Ta =
+25°C
+85°C
+25°C
Power supply voltage VCC (V)
Power supply voltage VCC (V)
Output current IRESET (µA)
Output volt age (VOHR) vs. output curr ent
Detection vo ltage (VSB, VSC) vs. Power supply voltage
Output voltage (VOLR) vs. output sink current
Output sink current IRESET (mA)
Output sink current IOUTC (mA)
Output voltage (VOLC) vs.
output sink current
Output voltage VOHR (V)
Output voltage VOLR (V)
Output vo lt ag e VOLC (V)
Detection voltage VSC, VSBL,VSBH (V)
Reset hold time (tPO) vs.
power supply voltage (CT = 0.01µF)
Reset hold time (tPO) vs. CT pin capacitance
Reset hold time tPO (ms)
Reset hold time tPO (s)
CT pin capacitance (F)
MB3771
17
■NOTES ON USE
• Take account of common impedance whe n designing the earth line on a printed wiring board.
• Take measures against stat ic electricity.
- For semiconductors, use antistatic or conductive containers.
- When storing or carrying a printed circuit board after chip mounting, put it in a conductiv e bag or container.
- The work table, tools and measuring instruments must be grounded.
- The worker must put on a grounding device containing 250 kΩ to 1 MΩ resistors in series.
• Do not apply a negative voltage
- Applying a negative voltage of −0.3 V or less to an LSI may generate a parasitic transistor, resulting in
malfunction.
■ORDERING INFORMATION
■RoHS Compliance Information of Lead (Pb) Free version
The LSI products of Fujitsu Microelectronics with “E1” are compliant with RoHS Directive , and has obser ved
the standard of lead, cadmium, mercury, Hexa v alent chromium, polybrominated biphenyls (PBB) , and polybro-
minated diphenyl ethers (PBDE) .
The product that conforms to this standard is added “E1” at the end of the part number.
■MARKING FORMAT (Lead Free version)
Part number Package Remarks
MB3771PF-❏❏❏ 8-pin Plastic SOP
(FPT-8P-M01) Conventional version
MB3771PF-❏❏❏E1 8-pin Plastic SOP
(FPT-8P-M01) Lead Fr ee version
INDEX
3771
E1XXXX
XXX
Lead-Free version
MB3771
18
■LABELING SAMPLE (Lead free version)
2006/03/01
ASSEMBLED IN JAPAN
G
QC PASS
(3N) 1MB123456P-789-GE1
1000
(3N)2 1561190005 107210
1,000
PCS
0605 - Z01A
1000
1/1
1561190005
MB123456P - 789 - GE1
MB123456P - 789 - GE1
MB123456P - 789 - GE1
Pb
Lead-Free version
lead-free mark
JEITA logo JEDEC logo
MB3771
19
■MB3771PF-❏❏❏E1 Recommended Conditions of Moisture Sensitivity Level
[Temperature Profile for FJ Standard IR Reflow]
(1) IR (infrar ed reflow)
(2) Manual soldering ( partial heating method)
Conditions : Temperature 400 °C MAX
Times : 5 s max/pin
Item Condition
Mounting Method IR (infrared reflow) , Manual soldering (partial heat ing method)
Mounting times 2 times
Storage period
Before opening Please use it within two years after
Manufacture.
From opening to the 2nd
reflow Less than 8 days
When the storage period after
opening was exceeded Please processes within 8 days
after baking (125 °C, 24H)
Storage conditio ns 5 °C to 30 °C, 70%RH or less (the lowest possible humidity)
260 °C
(e)
(d')
(d)
255 °C
220 °C
170 °C
190 °C
RT (b)
(a)
(c)
to
Note : Temperature : the top of the package body
(a) Temper ature Increa se gradient : Avera ge 1 °C/s to 4 °C/s
(b) Preliminary heating : Temperature 170 °C to 190 °C, 60s to 180s
(c) Temperature Increase gradient : Average 1 °C/s to 4 °C/s
(d) Actual hea ting : Temperature 260 °C MAX; 255 °C or more, 10s or less
(d’) Main heating : Temperature 230 °C or more, 40s or less
or
Temperat ure 225 °C or more, 60s or less
or
Temperat ure 220 °C or more, 80s or less
(e) Cooling : Natural cooling or forced cooling
H rank : 260 °C Max.
MB3771
20
■PACKAGE DIMENSIONS
8-pin plastic SOP Lead pitch 1.27 mm
Package width
×
package length
5.3× 6.35 mm
Lead shape Gullwing
Sealing method Plastic mold
Mounting height 2.25 mm MAX
Weight 0.10 g
Code
(Reference) P-SOP8-5.3×6.35-1.27
8-pin plastic SOP
(FPT-8P-M01)
(FPT-8P-M01)
C
2002 FUJITSU LIMITED F08002S-c-6-7
0.13(.005) M
Details of "A" part
7.80±0.405.30±0.30
(.209±.012) (.307±.016)
.250 –.008
+.010
–0.20
+0.25
6.35
INDEX
1.27(.050)
0.10(.004)
14
58
0.47±0.08
(.019±.003)
–0.04
+0.03
0.17
.007 +.001
–.002
"A" 0.25(.010)
(Stand off)
0~8˚
(Mounting height)
2.00 +0.25
–0.15
.079 +.010
–.006
0.50±0.20
(.020±.008)
0.60±0.15
(.024±.006)
0.10 +0.10
–0.05
–.002
+.004
.004
*1
0.10(.004)
*2
Dimensions in mm (inches).
Note: The values in parentheses are reference values.
Note 1) *1 : These dimensions include resin protrusion.
Note 2) *2 : These dimensions do not include resin protrusion.
Note 3)Pins width and pins thickness include plating thickness.
Note 4) Pins width do not include tie bar cutting remainder.
MB3771
21
MEMO
MB3771
22
MEMO
MB3771
23
MEMO
FUJITSU MICROELECTRONICS LIMITED
Shinjuku Dai-Ichi Seimei Bldg. 7-1, Nishishinjuku 2-chome, Shinjuku-ku,
Tokyo 163-0722, Japan Tel: +81-3-5322-3347 Fax: +81-3-5322-3387
http://jp.fujitsu.com/fml/en/
For further information please contact:
North and South America
FUJITSU MICROELECTRONICS AMERICA, INC.
1250 E. Arques Avenue, M/S 333
Sunnyvale, CA 94085-5401, U.S.A.
Tel: +1-408-737-5600 Fax: +1-408-737-5999
http://www.fma.fujitsu.com/
Europe
FUJITSU MICROELECTRONICS EUROPE GmbH
Pittlerstrasse 47, 63225 Langen,
Germany
Tel: +49-6103-690-0 Fax: +49-6103-690-122
http://emea.fujitsu.com/microelectronics/
Korea
FUJITSU MICROELECTRONICS KOREA LTD.
206 KOSMO TOWER, 1002 Daechi-Dong,
Kangnam-Gu,Seoul 135-280
Korea
Tel: +82-2-3484-7100 Fax: +82-2-3484-7111
http://www.fmk.fujitsu.com/
Asia Pacific
FUJITSU MICROELECTRONICS ASIA PTE LTD.
151 Lorong Chuan, #05-08 New Tech Park,
Singapore 556741
Tel: +65-6281-0770 Fax: +65-6281-0220
http://www.fujitsu.com/sg/services/micro/semiconductor/
FUJITSU MICROELECTRONICS SHANGHAI CO., LTD.
Rm.3102, Bund Center, No.222 Yan An Road(E),
Shanghai 200002, China
Tel: +86-21-6335-1560 Fax: +86-21-6335-1605
http://cn.fujitsu.com/fmc/
FUJITSU MICROELECTRONICS PACIFIC ASIA LTD.
10/F., World Commerce Centre, 11 Canton Road
Tsimshatsui, Kowloon
Hong Kong
Tel: +852-2377-0226 Fax: +852-2376-3269
http://cn.fujitsu.com/fmc/tw
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does not warrant proper operation of the device with respect to use based on such information. When you develop equipment incorporat-
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Please note that FUJITSU MICROELECTRONICS will not be liable against you and/or any third party for any claims or damages arising
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