UM5100 SERIES
5-7.5 Watt SMD DC-DC Converters
♦ Surface Mount Isolated DC-DC Converter
♦ High Efficiency
♦ 2:1 Input Range
♦ Pi Input Filter
♦ 1500 VDC Isolation
♦ Continuous Short Circuit Protection
SPECIFICATIONS
GENERAL SPECIFICATIONS
All specifications are typical at nominal line, full load and
25°C unless otherwise noted.
Efficiency ……….…….………………………….…. See Table
Isolation Voltage ………………..…………… 1500 VDC min.
Isolation Resistance ………………..…………108 Ohms min.
Switching Frequency ……….….………………. 400 KHz typ.
Operating Temperature Range4,
Ambient, None Derating ……………….… -25°C to +71°C
Cooling ….……………….…………… Free Air Convection
Storage Temperature Range ………….…. -40°C to +100°C
Case Material ……..………………….. Black-Coated Copper
With Non-Conductive Base
Dimensions ..………..……..……..….… 1.25*0.8*0.45 inches
(31.8*20.3*11.4mm)
Weight ……………………………………………………… 18g
INPUT SPECIFICATIONS
NOTES
Input Voltage Range, 12V ……….…………….………. 9-18V
24V ……………………….…… 18-36V
48V …….……………………… 36-75V
Input Filter …………………………………….………. Pi Type
1. Measured with 1uF ceramic capacitor connect to the output pins.
2. Measured from high line to low line.
3. Measured from full load to 10% load, dual outputs loaded equally.
4. Output Power
OUTPUT SPECIFICATIONS
100%.
Voltage Accuracy ………………………..…….… ±2.0% max.
Voltage Balance Dual Output at Full Load
…………………………………………………..… ±1% max.
Transient response
Ambient
Temperature
-25
71
100
(°C)
Single, 25% Step Load Change …………….. <500 u sec.
Dual, FL-1/2FL, ±1% Error Band
5. The converter required a minimum 10% loading on the output.
Operation below 10% load conditions will not damage these
devices. However they may not meet all listed spec.
6. Recommended Reflow Soldering
(Dual Outputs Loaded Equally) ….…..……… <500 u sec.
Ripple and Noise, 20MHz BW1
3.3V, 5V …………………. 50mVp-p max.
12V, 15V ……………….. 100mVp-p max.
Temperature Coefficient …..…...……………...… ±0.05%/°C
Short Circuit Protection …………………………. Continuous
Line Regulation2 ……………………………..….…..…. ±0.5%
Load Regulation3 …………………………..…..………. ±1.0%
2539 W. 237TH STREET, SUITE A,
TORRANCE, CA 90505
UMEC
TEL: (310) 326-7072 FAX: (310) 326-7058
INTERNATIONAL
UM5100
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