SN75468D

Overview

The SN75468D is a dual in-line package (DIP-16) integrated circuit containing seven NPN Darlington transistor arrays manufactured by Texas Instruments. It features a maximum collector-emitter voltage of 100V and a continuous collector current of 500mA per channel. The device operates within a junction temperature range up to 150°C and includes built-in clamping diodes for inductive load protection. Designed for robust performance, it meets AEC-Q100 automotive qualification standards and complies with RoHS3 regulations.

Feature Summary

• Integrated clamping diodes across all channels to manage inductive kickback from loads such as relays and solenoids
• Automotive-grade reliability certified under the AEC-Q100 standard for high-temperature operation
• High-voltage capability supporting 100V collector-emitter breakdown for driving heavy-duty loads

Applications

• Driving stepper motors and other inductive actuators in automotive systems
• Relay driver circuits requiring high voltage isolation and current gain
• Solenoid control interfaces in industrial automation equipment

Procurement Notes

Verify the specific suffix 'D' confirms the PDIP-16 through-hole package variant rather than surface-mount options. Confirm AEC-Q100 compliance requirements match the target application environment. Ensure input logic levels are compatible with the intended microcontroller or interface source before integration.

Selection Notes

Select this component when a through-hole DIP-16 footprint is required for prototyping or legacy board designs. Choose this part over surface-mount variants if manual assembly or rework capabilities are necessary. Verify that the 500mA per-channel limit suffices for the specific inductive load being driven without external heat sinking.

Part Context

This component belongs to the SN7546x series of Darlington transistor arrays from Texas Instruments. It serves as a high-current switching solution for interfacing low-power logic signals with high-power inductive loads. The series provides multiple configurations including single and dual packages to suit various density requirements.

Replacement Considerations

The ULN2003 series from STMicroelectronics is a documented alternative for similar Darlington array applications. Verify pinout compatibility and voltage ratings when substituting, as the ULN2003 typically offers higher current capacity but may differ in internal diode configuration.