UM1001 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – 3 Watt DC-DC Converters

UM1000 SERIES
3 Watt DC-DC Converters
♦ Utilizes Surface Mount Technology
♦ 2:1 Input Range
♦ 7.5 Watts/Cubic Inch
♦ Efficiency to 80%
♦ Remote On/Off Control
♦ 200 KHz Switching Frequency
♦ Continuous Short Circuit Protection
♦ RoHS Compliant
SPECIFICATIONS
All specifications are typical at nominal line full load, and
25°C unless otherwise noted.
INPUT SPECIFICATIONS
Input Voltage Range, 24V ………………………….... 18-36V
48V …………………………..... 36-72V
Input Filter .……………………………………….... Pi Network
Remote On/Off Control .…………………. "TC" Pin-Out Only
OUTPUT SPECIFICATIONS
Voltage Accuracy, Single Output ..……………….. ±1% max.
Dual + Output ………….……... ±1% max.
-Output .………………... ±1% max.
Voltage Balance, Dual Output at Full Load
……………………………..………………….... ±1.0% max.
Transient Response,
Single, 25% Step Load Change .……………….. <500μsec.
Dual,FL-1/2FL,±1% Error Band .……………….. <500μsec.
Ripple and Noise, 20MHz BW,
Single ….………………………………….. 100mV P-P max.
Dual ……………………………………..... 100mV P-P max.
Temperature Coefficient ..………………..... ±0.02%/°C max.
Line Regulation¹ ………………..………………... ±0.2% max.
Load Regulation², Single Output ………………. ±0.5% max.
Dual Output .………….…….. ±0.5% max.
Short Circuit Protection .…………….…………... Continuous
GENERAL SPECIFICATIONS
Efficiency .…………………………………………... See Table
Isolation Voltage³ …..………….... 500 VDC, 1000 VDC min.
Isolation Resistance ………………………..... 10⁸ ohms min.
Isolation Capacitance .…………………....…….... 300pF typ.
Switching Frequency .…………………...……... 200KHz typ.
Operating Temperature Range,
Ambient None Derating …………………….. -25°C to +71°C
Cooling .…………………………………. Free Air Convection
Storage Temperature Range .……………... -40°C to+125°C
Dimensions Case A .…………….. 1.25 x 0.80 x 0.40 inches
(31.8 x 20.3 x 10.2 mm)
Case Material ……..………... Non-Conductive Black Plastic
UL94V-0
Weight ..…………………..………………………………... 15g
NOTES:
1. Measured from high line to low line.
2. Measured from full load to no load, dual outputs loaded
equally.
3. 1000 VDC for “T”/”TC” pin-out only.
REMOTE ON/OFF CONTROL
Control Input …………………………………………… Pin 20
Control Common ………..………………………… Pin 23,24
Logic Compatibility …………………………………………….
…………………………..…. COMS or Open Collector TTL
Control Voltage ………………………………………………..
On ………………………..…. >+5.5 VDC Or Open Circuit
Off ………………….. <+1.8 VDC or Jumper to Pin 23,24
Converter Shutdown Idle Current …………….……… 10mA
UM1000
UNIVERSAL
MICROELECTRONICS
3,27TH RD., TAICHUNG INDUSTRIAL PARK,
TAICHUNG, TAIWAN, R.O.C.
TEL: [phone] FAX: [phone]
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