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UM2400 SERIES
25 to 30 Watt DC-DC Converters
4:1 Input Range 30W Isolated Output Efficiency to 83% Remote On/Off Control 100 KHz Switching Frequency Six-Sided Shield Conductive EMI Meets CISPR22 Class A
SPECIFICATIONS
All specifications are typical at nominal line, full load and 25C unless otherwise noted.
GENERAL SPECIFICATIONS
Efficiency .................................................... See Table Isolation Voltage ................................... 1500 VDC min. 8 Isolation Resistance ................................ 10 ohms min. Switching Frequency ........................................ 100KHz Case Grounding ...................... Capacity Coupled to Input Operating Temperature Range Ambient, None Derating ........................ -25C to +60C Derating ......................................... 0.67W/C Cooling ........................................ Free-Air Convection Storage Temperature Range .................. -55C to+105C 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 1 Reverse Voltage Protection .............. Internal Shunt Diode Use External Fuse
OUTPUT SPECIFICATIONS
Voltage Accuracy, Single Output ..................... 1% max. Dual, +Output ...................... 1% max. -Output ...................... 3% max. Triple, 5V ............................ 1% max. 12V/15V .................... 5% max. Voltage Balance, Dual Output at Full Load, .................................................................... 1.0% max. Transient, Response Single,25% Step Load Change .................... <500sec. Dual, FL-1/2FL, 1% Error Band ................. <500sec. 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 Line Regulation2, Single/Dual Output .............. 0.5% 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, ................................................... <1.8 VDC Shutdown Idle Current ..................................... 10mA Control Common ................. Referenced to Input Minus
UNIVERSAL MICROELECTRONICS
UM2400 1 of 2
3,27TH RD., TAICHUNG INDUSTRIAL PARK, TAICHUNG, TAIWAN, R.O.C. TEL: 886-4-23590096 FAX: 886-4-23590129
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MODEL NUMBER
UM2401 UM2402 UM2403 UM2404 UM2405 UM2406 UM2407 UM2411 UM2412 UM2413 UM2414 UM2415 UM2416 UM2417
INPUT VOLTAGE
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
5000 mA 2500 mA 2000 mA 1250 mA 1000 mA 3000/450 mA 3000/350 mA 5000 mA 2500 mA 2000 mA 1250 mA 1000 mA 3000/450 mA 3000/350 mA
INPUT CURRENT NO LOAD
25 mA 30 mA 30 mA 30 mA 30 mA 50 mA 50 mA 20 mA 20 mA 20 mA 20 mA 20 mA 40 mA 40 mA
FULL LOAD
1360 mA 1600 mA 1580 mA 1560 mA 1560 mA 1400 mA 1380 mA 680 mA 780 mA 780 mA 760 mA 760 mA 700 mA 680 mA
% EFF
76 78 79 80 80 77 77 77 80 80 82 82 77 78
CASE
24VDC
E
48VDC
E
CASE E
100%
Operating Limit and Output Power Range NATURAL CONVECTION COOLING
-20
0
+20
+40 +60 +80
+100
Maximum case temperature under any operating condition must not be exceeded 105C
EXTERNAL OUTPUT TRIMMING
Output may optionally be externally trimmed (+10%) with a fixed resister or an external trimpot as shown.
5 5 TRIM UP 4 3 TRIM DOWN RT1 OR RT2 10 K TRIMPOT
All dimensions in inches (mm). Tolerance .xx =0.04" .xxx =0.010" 1 TRIPLE OUTPUT LOADING TABLE Amperes OUTPUT VOLATGE 2 Min. Nom. Max. 3.5 3.0 0.500 +5 1 0.700 0.450 0.100 +12 or -12 2&3 0.700 0.350 0.100 +12 or -15 2&3 NOTES: 1. Maximum total power from all outputs is limited to 30 watts but no output should be allowed to exceed its maximum current. 2. Minimum current on each output required to maintain specified regulation. 3. If remotes sensing is utilized, output sense pins must be jumpered to respective output power pins, for normal operation connect pin No.3 to pin No.6 and pin No.5 to pin No.7.
4 3
Pin Connections Pin 1 2 3 4 5 6 7 8 Single
3
Dual
Triple
+Input +Input +Input -Input -Input -Input +Sense +Output +12V,15V Output Trim Common Common -Sense -Output -12V,15V +Output No Pin +5V -Output No Pin +5V Com Remote On/Off Control
UNIVERSAL MICROELECTRONICS
UM2400 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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