ISR Series DC-DC Converter
xxx Series
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1
Models & Ratings
Notes
1. Input currents measured at nominal input voltage.
• Single Output
• Wide Range 2:1 Input
• SMD Package
• Industry Standard Pinout
• Regulated Output
• Operating Temperature -40 °C to +95 °C
• 1500 VDC Isolation, 3000 VDC Option
• 3 Year Warranty
Dimensions:
ISR:
0.94 x 0.713 x 0.31” (23.86 x 18.1 x 8.0 mm)
3 Watt
Input Voltage Output Voltage Output Current Input Current Maximum
Capacitive Load Efficiency Model Number
No Load Full Load
9-18
5 V 600 mA 22 mA 333 mA 3300 µF 75% ISR1205A
12 V 250 mA 22 mA 325 mA 1800 µF 77% ISR1212A
15 V 200 mA 22 mA 316 mA 1000 µF 79% ISR1215A
18-36
5 V 600 mA 12 mA 164 mA 3300 µF 76% ISR2405A
12 V 250 mA 12 mA 154 mA 1800 µF 81% ISR2412A
15 V 200 mA 12 mA 156 mA 1000 µF 80% ISR2415A
36-75
5 V 600 mA 8 mA 81 mA 3300 µF 77% ISR4805A
12 V 250 mA 8 mA 78 mA 1800 µF 80% ISR4812A
15 V 200 mA 8 mA 78 mA 1000 µF 80% ISR4815A
7 8
910
16
1
0.94±0.02 (23.86±0.5)
0.70 (17.78)
S ide Vi ew
Top V iew
0.31
(8.00)
0.713 ±0.016
(18.1 ±0.4)
0.29
(7.50)
0.54 (13.70)
0.13
(3.34)
0.10
(2.54)
A
A
0.05
(1.35)
0.02
(0.50)
0.54 (13.70)
5° max
0.01
(0.25)
1. All dimensions are in inches (mm)
2. Weight: 0.0115 lbs (5.2 g) typical.
3. Pin pitch and length tolerance: ±0.014 (±0.35)
4. Case tolerance: ±0.02 (±0.5)
Notes
Mechanical Details
PIN CONNECTIONS
Pin Function
1 GND
7No Connection
8No Connection
9+Vout
10 0 V
16 +Vin
16
10
7
1
9
8
0.098
(2.50)
0.047
(1.20)
A
Recommended Footprint
Top View Grid: 0.1 x 0.1 in (2.54 x 2.54 mm)
ISR Series
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DC-DC Converter
Input
Output
Characteristic Minimum Typical Maximum Units Notes & Conditions
Output Voltage 5 15 VDC See Models and Ratings table
Initial Set Accuracy ±1 ±3 % At 100% load
Minimum Load 5%
Line Regulation ±0.4 %
Load Regulation ±0.75 % 10% to full load
Start Up Delay 2 ms
Ripple and Noise 60 mV pk-pk 20 MHz bandwidth, measured using 0.1 µF capacitor
Transient Response 5 % deviation Recovery to within 1% in 5 ms for a 25% load change
Short Circuit Protection Continuous, with auto recovery
Maximum Capacitive Load See Models and Ratings table
Temperature Coefficient 0.03 %/°C
Characteristic Minimum Typical Maximum Units Notes & Conditions
Input Voltage Range
918 VDC 12 V nominal
18 36 VDC 24 V nominal
36 75 VDC 48 V nominal
Input Current See Models and Ratings table
Input Reflected Ripple 15 mA pk-pk Through 12 µH inductor and 47 µF capacitor
Input Surge
25 VDC for 1 s 12 V models
50 VDC for 1 s 24 V models
100 VDC for 1 s 24 V models
Input Filter Pi filter
General
Characteristic Minimum Typical Maximum Units Notes & Conditions
Efficiency See Models and Ratings table
Isolation: Input to Output 1500 VDC
Switching Frequency 350 kHz 100% load and nominal input voltage
Isolation Resistance 109ΩInput to output, tested at 500 VDC
Isolation Capacitance 1nF Input to output
Power Density 13.4 Win3
Mean Time Between Failure 1000 kHrs MIL-HDBK-217F, +25 °C GB
Weight 0.0115 (5.2) lb (g)
Recommended Solder Profile IPC/JEDEC J-STD-020D.1
Environmental
Characteristic Minimum Typical Maximum Units Notes & Conditions
Operating Temperature -40 +95 °C Derate linearly from 100% load at +85 °C to 50% load
at 95 °C
Storage Temperature -55 +125 °C
Case Temperature +105 °C
Operating Humidity 95 % RH Non-condensing
Cooling Natural convection
ISR Series
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DC-DC Converter
322 Aug 17
EMC: Immunity
Phenomenon Standard Test Level Criteria Notes & Conditions
ESD Immunity EN61000-4-2 ±4 kV B Contact
Radiated Immunity EN61000-4-3 10 V/m A
EFT/Burst EN61000-4-4 2BExternal input filter required, see application note
Surge EN61000-4-5 2BExternal input filter required, see application note
Conducted Immunity EN61000-4-6 3 V rms A
Magnetic Fields EN61000-4-8 1 A/m A
EMC: Emissions
Phenomenon Standard Test Level Notes & Conditions
Conducted EN55022 Class B See Application Note for Class B filter
Radiated EN55022 Class B See Application Note for Class B filter
EMI Filter for Class B Emissions
Application Note
ISR
+Vout
Load
0 V
+Vin
-Vin
12 µH
4.7 µF, 50 V
Filter for Immunity
ISR
+Vout
Load
0 V
+Vin
-Vin
56 µH
C1
7 8
910
16
1
0.94±0.02 (23.86±0.5)
0.70 (17.78)
S ide Vi ew
Top V iew
0.31
(8.00)
0.713 ±0.016
(18.1 ±0.4)
0.29
(7.50)
0.54 (13.70)
0.13
(3.34)
0.10
(2.54)
A
A
0.05
(1.35)
0.02
(0.50)
0.54 (13.70)
5° max
0.01
(0.25)
Mechanical Details
16
10
7
1
9
8
0.098
(2.50)
0.047
(1.20)
A
1. All dimensions are in inches (mm)
2. Weight: 0.0115 lbs (5.2 g) typical.
3. Pin pitch and length tolerance: ±0.014 (±0.35)
4. Case tolerance: ±0.02 (±0.5)
Notes
PIN CONNECTIONS
Pin Function
1 GND
7No Connection
8No Connection
9+Vout
10 0 V
16 +Vin
Input Voltage MOV TVS C1
12 V - SMCJ28A 680 µF/25 V
24 V 10D560 SMCJ48A 120 µF/50 V
48 V 10D101 SMCJ90A 120 µF/100 V
Recommended Footprint
T
op View Grid: 0.1 x 0.1 in (2.54 x 2.54 mm)
