SC15A21-300-48E - Semiconductor Circuits, Inc.

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DP Series

All specifications are typical at nominal line and full load at 25°C unless

otherwise noted and are subject to change without notice.

15 Watts

Single/Dual Outputs



 Industry standard form

factor 2 x 1 x 0.40



 Three input voltage ranges

9-18 Vdc

18-36 Vdc

36-75 Vdc



 Remote shutdown



 400kHz switching frequency



 Continuous short circuit

protection



 Six-sided shielding



 UL1950, cUL, EN60950

The SC15A series of cost

sensitive single and dual output

15 watt DC/DC converters are

specifically designed for critical appli-

cations requiring a compact, low profile

case.

These high performance 15 watt

converters offer a high switching

frequency topology, 1500 Vdc I/O

isolation, and efficiencies to 85%.

Twenty-one models available. Three

input voltage ranges of 9-18 Vdc, 18-36

Vdc and 36-75 Vdc provide regulated

outputs of 3.3, 5, 12, 15 and ±5, ±12

and ±15 Vdc.

Applications

These units are ideally suited for

telecommunications, distributed power

systems, automatic test equipment,

medical and process control.

SC15A Series

INPUT

Voltage Range 9-18 Vdc

18-36 Vdc

36-75 Vdc

Reverse Polarity Protected To Nominal Input Current

External Fuse Required

Remote On/Off Control Optional

OUTPUT

Voltage Tolerance ± 1%

Ripple and Noise 50mV pk-pk (typ)

Short Circuit Protection Continuous Power Cycle

Temperature Coefficient .02% / °C

GENERAL

Regulation:

Line 0.25%

Load 0.5% (singles)

1.0% (duals)

Switching Frequency 400 kHz (±10%)

Efficiency 80-85% (typ)

I/O Isolation 1500 Vdc

ENVIRONMENTAL

Operating Temperature -40°C to +60°C

Max Baseplate Temp 105°C

Storage Temperature -55°C to +105°C

Cooling Free-air Convection

14 14C Industrial Way Atkinson, NH 03811 (603) 893-2330 FAX (603) 893-6280

SC15A Series Ordering Information

Dimensions and Connections

Input Voltage Output Output Model

Range Voltage Current Number

9-18 Vdc 3.3 Vdc 3000mA SC15A17-300-12

9-18 Vdc 5 Vdc 3000mA SC15A11-300-12

9-18 Vdc 12 Vdc 1250mA SC15A12-125-12

9-18 Vdc 15 Vdc 1000mA SC15A13-100-12

9-18 Vdc ±5 Vdc ±1500mA SC15A21-300-12

9-18 Vdc ±12 Vdc ±625mA SC15A22-125-12

9-18 Vdc ±15 Vdc ±500mA SC15A23-100-12

18-36 Vdc 3.3 Vdc 3000mA SC15A17-300-24

18-36 Vdc 5 Vdc 3000mA SC15A11-300-24

18-36 Vdc 12 Vdc 1250mA SC15A12-125-24

18-36 Vdc 15 Vdc 1000mA SC15A13-100-24

18-36 Vdc ±5 Vdc ±1500mA SC15A21-300-24

18-36 Vdc ±12 Vdc ±625mA SC15A22-125-24

18-36 Vdc ±15Vdc ±500mA SC15A23-100-24

36- 75Vdc 3.3 Vdc 3000mA SC15A17-300-48

36 -75Vdc 5 Vdc 3000mA SC15A11-300-48

36 -75Vdc 12 Vdc 1250mA SC15A12-125-48

36 -75Vdc 15 Vdc 1000mA SC15A13-100-48

36 -75Vdc ±5 Vdc ±1500mA SC15A21-300-48

36 -75Vdc ±12 Vdc ±625mA SC15A22-125-48

36 -75Vdc ±15Vdc ±500mA SC15A23-100-48

For Optional Remote On/Off add suffix “E”

(i.e. SC15A11-300-48E)

Remote ON/Off Control (pin 6) common referenced

to - Input (pin 2).

On greater than 2.5 Vdc or open circuit

Off less than 0.8 Vdc

PIN CONNECTIONS

Single Output

1. +Input

2. -Input

3. +Output

4. No Pin

5. Common

6. Remote On/Off

NOTES:

1. Ripple measured with a 3.3 µF tantalum

capacitor across each output.

2. Minimum load 10% of full load. Load regulation

from full load to minimum load.

3. The SC15A series requires an external filter

capacitor across the input valued at 2.2µF @

100Vdc such as ITW/Paktron part# 225K100RA4

or equiv.

4. Case connected to pin #1 on -48 models. Case

connected to pin #2 on -12 and -24 models

PIN CONNECTIONS

Dual Outputs

1. +Input

2. -Input

3. +Output

4. Common

5. -Output

6. Remote On/Off

03/27/2002