2003

Overview

The Microsemi Corporation SG2003 is a high-voltage medium current driver array designed for demanding environments. It integrates seven NPN Darlington pairs with internal suppression diodes to drive lamps, relays, and solenoids. The device features open collector outputs with breakdown voltages exceeding 50V and current carrying capabilities up to 600mA. It supports DTL, TTL, PMOS, or CMOS input configurations. Operating temperatures range from -55°C to 125°C in ceramic packages (J) and 0°C to 70°C in plastic dual-in-line (N) packages.

Feature Summary

• Integrates seven NPN Darlington pairs with internal clamping diodes for inductive load protection
• Supports multiple input logic standards including DTL, TTL, PMOS, and CMOS
• Available in hermetic ceramic packages suitable for military and aerospace applications

Applications

• Driving lamps in severe environment systems
• Actuating relays in industrial control circuits
• Powering solenoids in military and aerospace equipment

Procurement Notes

Verify package type availability as the SG2003 series offers distinct thermal and environmental ratings for ceramic versus plastic housings. Confirm specific suffix codes against manufacturer documentation to ensure compliance with required operating temperature ranges and hermetic sealing standards for the intended deployment environment.

Selection Notes

Select the ceramic J package for operations requiring -55°C to 125°C ambient temperature stability and hermetic sealing. Choose the plastic N package only for commercial temperature ranges of 0°C to 70°C. Ensure input drivers match the supported logic families: DTL, TTL, PMOS, or CMOS. Verify that the load current does not exceed the 600mA collector current rating per channel.

Part Context

The SG2003 belongs to the SG2000 series of high-voltage driver arrays manufactured by Microsemi Corporation. This family is engineered for reliability in harsh conditions, offering integrated solutions for switching inductive loads without external flyback diodes. The series provides flexibility through various input configuration options to interface with diverse digital control systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with other high-voltage Darlington driver arrays only if electrical parameters and pinouts are verified identical.