SN75468DE4

Overview

The SN75468DE4 is a high-voltage Darlington transistor array manufactured by Texas Instruments. It integrates seven independent NPN Darlington pairs within a single 16-pin SOIC package. The device supports a maximum collector-emitter voltage of 100V and delivers a continuous collector current of 500mA per channel. It features an internal clamp diode connected to the emitter of each output stage, facilitating inductive load switching without external protection components. The component operates with a junction temperature rating up to 150°C and complies with RoHS3 standards.

Feature Summary

• Integrates seven independent NPN Darlington transistor pairs for multi-channel control
• Includes internal emitter clamp diodes on all output channels for inductive load protection
• Designed for high-voltage applications with a 100V collector-emitter breakdown capability
• Supports surface-mount assembly via a standard 16-SOIC footprint

Applications

• Stepper motor driving circuits
• High-voltage relay driver interfaces
• Inductive load switching systems

Procurement Notes

Verify the specific suffix 'E4' indicates lead-free composition compliant with RoHS3 regulations. Confirm the package designation corresponds to the 16-SOIC form factor. Ensure the source documentation explicitly lists the SN75468DE4 part number to distinguish it from non-lead-free variants or alternative packaging options.

Selection Notes

Select this component when a design requires multiple high-voltage switching channels in a compact surface-mount configuration. The integrated clamp diodes simplify circuit layout for inductive loads. Verify that the 500mA per-channel current limit meets the specific load requirements, as total power dissipation must be managed within the thermal constraints of the SOIC package.

Part Context

This part belongs to the SN7546x series of Darlington transistor arrays produced by Texas Instruments. The 'E4' suffix typically denotes a lead-free finish variant within the manufacturer's product line. It serves as a discrete semiconductor solution for peripheral driver applications requiring high voltage tolerance and moderate current capacity.

Replacement Considerations

The ULN2003D1013TR from STMicroelectronics is listed as a similar alternative. Note that while both are Darlington arrays, differences in pinout, voltage ratings, and current capabilities require careful schematic review before substitution.