UM500 SERIES
10 to 12 Watt DC-DC Converters
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High Performance.
60% Efficiency.
Regulated Outputs.
Pi Input Filter.
Six-Sided Shield
SPECIFICATIONS
All specifications are typical at nominal line, full load and
25°C unless otherwise noted.
GENERAL SPECIFICATIONS
Efficiency ……….………………….……………………… 60%
Isolation Voltage ………………………………. 500 VDC min.
Isolation Capacitance …………………………..……… 100pF
8
Isolation Resistance …..………………..……. 10 ohms min.
Switching Frequency ……….…….………..…… 20KHz min.
Operating Temperature Range
Ambient, None Derating ……….………… -25°C to +71°C
Cooling ….…………………………… Free Air Convection
Storage Temperature Range ……………. -40°C to +100°C
1
EMI/RFI …………………..….. Six-Sided Continuous Shield
Dimensions ………………………..….… 3.5*2.5*0.88 inches
(88.9*63.5*22.4mm)
Case Material ……………….…… Black-Coated Copper
with
Non-Conductive Base
Weight ………………………………………..…………… 200g
Input Voltage
60% FL
4.4-6.5V
80% FL
4.5-6.0V
100% FL
4.65-5.5V
INPUT SPECIFICATIONS
Input Voltage Range ………..……………….….… See Table
Input Filter …………………..………..………..….. Pi Network
5V
12V
24V
10.56-15.6V 10.8-14.4V 11.16-13.2V
21.12-31.2V 21.6-28.8V 22.32-26.4V
24.64-36.4V 25.2-33.6V 26.04-30.8V
42.24-62.4V 43.2-57.6V 44.64-52.8V
OUTPUT SPECIFICATIONS
Voltage Accuracy ………………….………..…… ±1.0% max.
Voltage Balance, Dual Output …..….………… ±0.5% m a x.
Temperature Coefficient
Single Output ……...……………..……………… ±0.02%/°C
Dual Output ……...………………………….....… ±0.01%/°C
1
Ripple and Noise, 20MHz BW
Single Output ……...………………..……… 50mV P-P max.
Dual Output ……...……………………….… 35mV P-P max.
Short Circuit Protection …..………………...…. Current Limit
Line Regulation ………………………………..…….…. 0.02%
Load Regulation ……………………………..…..….…. 0.05%
28V
48V
NOTES:
1. Measured with 0.1uF ceramic cap.
Connected to the output pins.
UNIVERSAL
MICROELECTRONICS
UM500
1
OF
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3,27TH RD., TAICHUNG INDUSTRIAL PARK,
TAICHUNG, TAIWAN, R.O.C.
TEL: 886-4-23590096 FAX: 886-4-23590129
REV. 3
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