UM800 SERIES
15 Watt DC-DC Converters
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4:1 Input Range.
15W Isolated Output.
Efficiency to 80%.
Remote On/Off Control.
100 KHz Switching Frequency.
Six-Sided Shield.
SPECIFICATIONS
All specifications are typical at nominal line, full load and
25°C unless otherwise noted.
GENERAL SPECIFICATIONS
Efficiency ………………..…….…….……………... See Table
Isolation Voltage .………..…….…….……….... 500 VDC min.
Isolation Resistance .………….…………….... 10
8
ohms min.
Switching Frequency .…..…….……………….…….. 100KHz
Case Grounding ……………….... Capacity Coupled to Input
Operating Temperature Range
Ambient, None Derating …………………... -25°C to +71°C
Cooling .………………………..…..….. Free Air Convection
Storage Temperature Range .…..……….... -55°C to +105°C
EMI/RFI …………..…….……... Six-Sided Continuous Shield
Dimensions …………….………….... 2.56 * 3.0 * 0.83 inches
(65 * 76.2 * 21.1mm)
Case Material ……..…….…….... Black-Coated Copper with
Non-Conductive Base
Weight ………………..………………………………....... 180g
INPUT SPECIFICATIONS
Input Voltage Range, 24V …………....……….……….. 9-36V
48V …………….……….……... 18-72V
Input Filter .…………………………………….…... Pi Network
Reverse Voltage Protection
1
……….…. Internal Shunt Diode
Use External Fuse
OUTPUT SPECIFICATIONS
Voltage Accuracy, Single Output ……..……….….. ±1% max.
Dual + Output .…..….……..….. ±1% max.
- Output ...…..…………... ±3% max.
Triple, 5V ………….………..…. ±2% max.
12V/15V ………………… ±3% max.
Voltage Balance, Dual Output at Full Load .…... ±1.0% max.
Transient Response
Single, 25% Step Load Change ..…………….. <500μsec.
Dual,FL-1/2L,±1% Error Band ……….……...... <500μsec.
External Trim Adj, Range .……………….……………... ±10%
Ripple and Noise, 20MHz BW ……………. 10mV RMS max.
75mV P-P max.
Temperature Coefficient ………………...….. ±0.02%°C max.
Short Circuit Protection .………………….……... Continuous
Overvoltage Protection, 5V …..….………….…………... 6.8V
12V .…….………….….……..….. 15V
15V …….…………..……….…… 18V
2
Line Regulation , Single/Dual Output ………..... ±0.2% max.
Triple Output ……..….....……... ±1% max.
3
Load Regulation , Single/Dual Output .….……..... ±1% max.
Triple Output .….……….……... ±5% max.
NOTES
1. Determine the correct fuse size by calculating the
maximum DC current drain at low line input, maximum
load and then adding 20% to 25% to get the desired
fuse size.
2. Measured from high line to low line.
3. Measured from full load to 1/4 full load.
REMOTE ON/OFF CONTROL
Logic Compatibility……………………………………………….
…….……………………………CMOS or Open Collector TTL
Ec-ON,…………………………….>+5.5 VDC or Open Circuit
Ec-OFF,………………………………………….……..<1.8VDC
Shutdown Idle Current…………..…………………...…..10mA
Control Common…………..……..Referenced to Input Minus
UNIVERSAL
MICROELECTRONICS
UM800
1 OF 2
3,27TH RD., TAICHUNG INDUSTRIAL PARK,
TAICHUNG, TAIWAN, R.O.C.
TEL: 886-4-23590096 FAX: 886-4-23590129
REV.1
MODEL
NUMBER
UM801
UM802
UM803
UM804
UM805
UM806
UM807
UM811
UM812
UM813
UM814
UM815
UM816
UM817
CASE E
INPUT
VOLTAGE
24 VDC
48 VDC
OUTPUT
VOLTAGE
5 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
5/±12 VDC
5/±15 VDC
5 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
5/±12 VDC
5/±15 VDC
OUTPUT
CURRENT
3000 mA
1250 mA
1000 mA
±625 mA
±500 mA
1500/±310 mA
1500/±250 mA
3000 mA
1250 mA
1000 mA
±625 mA
±500 mA
1500/±310 mA
1500/±250 mA
INPUT CURRENT
NO LOAD
FULL LOAD
810 mA
20 mA
780 mA
20 mA
780 mA
20 mA
780 mA
30 mA
780 mA
30 mA
800 mA
30 mA
800 mA
30 mA
410 mA
20 mA
390 mA
20 mA
390 mA
20 mA
390 mA
25 mA
390 mA
25 mA
400 mA
25 mA
400 mA
25 mA
%
EFF
77
80
80
80
80
78
78
76
80
80
80
80
78
78
CASE
E
E
Pin
1
2
3
4
5
6
7
8
PIN CONNECTIONS
Single
Dual
Triple
+Input
+Input
+Input
-Input
-Input
-Input
+Output
+Output
No Pin
Common
Common
Output Trim
-Output
-Output
No Pin
+5V Output
No Pin
+Output
No Pin
No Pin
-Output
Remote On/Off Control
EXTERNAL OUTPUT TRIMMING
Output may optionally be externally trimmed (+10%) with a
fixed resister or an external trimpot as shown.
7
TRIM
UP
4
6
TRIM
DOWN
RT1
OR
RT2
7
10 K
Ω
TRIMPOT
4
6
TRIPLE OUTPUT LOADING TABLE
1
Amperes
All dimensions in inches(mm).
Tolerance .xx =±0.04
.xxx =±0.010
Min
2
+5
1
2 & 3 +12 or –12
2 & 3 +15 or –15
.250
.100
.100
Nom.
1.5
.310
.250
Max.
2.0
.500
.500
NOTES:
1. Maximum total power from all outputs is limited
to15 watts but no output should be allowed to
exceed its maximum current.
2. Minimum current on each output is required to
maintain specified regulation.
UNIVERSAL
MICROELECTRONICS
UM800
2 OF 2
3,27TH RD., TAICHUNG INDUSTRIAL PARK,
TAICHUNG, TAIWAN, R.O.C.
TEL: 886-4-23590096 FAX: 886-4-23590129
REV.1
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