ETC LT102

DC/DC Converters
260 Hopping Brook Road
Holliston, Massachusetts 01746
Tel. (508) 429-4440
Fax (800) 226-2100
http://www.intlpower.com
LT Series: 25/30 WATT
Wide Input Range
FEATURES
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4:1 Input Range
Isolated Outputs
Efficiency to 84%
100 kHz Switching Frequency
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External Output Trim
Remote Disable
Six-sided Shield
PCB Mountable
MODELS CHART
INPUT
MODEL
NUMBER
VOLTAGE
RANGE
OUTPUT
VOLTAGE
OUTPUT
CURRENT
INPUT CURRENTS
LT101
LT102
LT103
LT104
LT105
LT106
LT107
LT108
LT201
LT202
LT203
LT204
LT205
LT206
LT207
LT208
9-36VDC
9-36VDC
9-36VDC
9-36VDC
9-36VDC
9-36VDC
9-36VDC
9-36VDC
20-72VDC
20-72VDC
20-72VDC
20-72VDC
20-72VDC
20-72VDC
20-72VDC
20-72VDC
5VDC
12VDC
15VDC
±12VDC
±15VDC
+5/+12/-5VDC
5/±12VDC
5/±15VDC
5VDC
12VDC
15VDC
±12VDC
±15VDC
+5/+12/-5VDC
5/±12VDC
5/±15VDC
5000mA
2500mA
2000mA
±1250mA
±1000mA
3000/+600/1000mA
3000/±600mA
3000/±500mA
5000mA
2500mA
2000mA
±1250mA
±1000mA
3000/+600/1000mA
3000/±600mA
3000/±500mA
NOTE: Nominal Input Voltage 12 or 24 VDC
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NO LOAD
20mA
20mA
20mA
20mA
20mA
50mA
50mA
50mA
20mA
20mA
20mA
20mA
20mA
40mA
40mA
40mA
FULL LOAD
2700mA
3100mA
3100mA
3100mA
3100mA
3200mA
3200mA
3200mA
1360mA
1500mA
1500mA
1500mA
1500mA
1560mA
1500mA
1500mA
%
EFF
75
81
81
81
81
71
77
78
77
83
83
81
83
73
82
83
ELECTRICAL SPECIFICATIONS
All specifications typical at nominal line, full load and 25°C
OUTPUT SPECIFICATIONS
INPUT SPECIFICATIONS
Voltage Accuracy
Single Output . . . . . . . . . . . . .±1% max.
Dual+Output . . . . . . . . . . . . .±1% max.
-Output . . . . . . . . . . . . . . . . .±3% max.
Triple 5V . . . . . . . . . . . . . . . .±2% max.
12V/15V . . . . . . . . . . . . . . . .±5% max.
-5V . . . . . . . . . . . . . . . . . . . .±2% max.
Voltage Balance, Dual Output at Full Load . . . . . . .±1% max.
Transient Response:
Single, 25% Step Load Change . . . . . . . . . . . .<500µ sec.
Dual, FL-1/2L±1% Error Band . . . . . . . . . . . . . .<500µ sec.
External Trim Adj. Range . . . . . . . . . . . . . . . . . . . . . . . .±10%
Ripple & Noise, 20MHz BW . . . . . . . . . . . .10mV RMS, max.
75mV P-P max.
Temperature Coefficient . . . . . . . . . . . . . . . .±0.02%/°C max.
Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . .Indefinite
Overvoltage Protection, 5V . . . . . . . . . . . . . . . . . . . . . .6.8V
12V . . . . . . . . . . . . . . . . . . . . . .15V
15V . . . . . . . . . . . . . . . . . . . . . .18V
Single Output . . . . . . . . . . .±0.5% max.
Line Regulation1:
Triple Output . . . . . . . . . . . . .±1% max.
Load Regulation2:
Single/Dual Output . . . . . . . . .±1% max.
Triple Output . . . . . . . . . . . . .±5% max.
Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . .See Table
Input Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .π Type
Reverse Voltage Protection3 . . . . . . . . . .Internal Shunt Diode
Use External Fuse
GENERAL SPECIFICATIONS
Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Table
Isolation Voltage . . . . . . . . . . . . . . . . . . . . . . . .500VDC min.
Isolation Resistance . . . . . . . . . . . . . . . . . . . . .109 ohms min.
Switching Frequency . . . . . . . . . . . . . . . . . . . . . . . . .100kHz
Case Grounding . . . . . . . . . . . . . . .Capacity Coupled to Input
Operating Temperature Range . . . . . . . . . . . .-25°C to +71°C
Storage Temperature Range . . . . . . . . . . . . .-55°C to +105°C
EM/RFI . . . . . . . . . . . . . . . . . . . .Six-sided Continuous Shield
Dimensions . . . . . . . . . . . . . . . . . . . .2.56 x 3.0 x 0.83 inches
(65 x 76.2 x 21.1 mm)
Case Material . . . . . . . . . . . . . . . . .Black Coated Copper with
Non-Conductive Base
DIMENSIONS AND CONNECTIONS
PIN CONNECTIONS
DUAL
PIN
SINGLE
1
2
3
4
5
6
7
8
+ Input
- Input
No Pin
Output Trim
No Pin
+ Output
- Output
+ Input
- Input
+ Output
Common
- Output
No Pin
No Pin
Remote On/Off Control
TRIPLE
+ Input
- Input
+ Output
Common
- Output
+5V Output
No Pin
REMOTE ON/OFF CONTROL
Logic Compatibility . .CMOS or Open Collector TTL
Ec-ON, . . . . . . . . . . . . .>+5.5 VDC or Open Circuit
Ec-OFF, . . . . . . . . . . . . . . . . . . . . . . . . .<0.8 VDC
Shutdown Idle Current . . . . . . . . . . . . . . . . . .10mA
Input Resistance . . . .(Ein 0 VDC to 9 VDC) 100KΩ
Control Common . . . . . .Referenced to input Minus
EXTERNAL OUTPUT TRIMMING
OUTPUT MAY OPTIONALLY BE EXTERNALLY TRIMMED (±10%) WITH
A FIXED RESISTOR OR AN EXTERNAL TRIMPOT AS SHOWN.
NOTE:
1. Measured from High Line to Low Line.
2. Measured from Full Load to 1/4 Full Load.
3. 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.
4. A 10% minimum load is required on dual and triple
output models for rated performance.
Dimensions in inches (mm)
Specifications subject to change.
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