SN75477DE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN75477DE4 is a quadruple half-H driver integrated circuit manufactured by Texas Instruments. It features four independent half-H bridge drivers capable of driving inductive loads such as DC motors, solenoids, and lamps. The device operates with a supply voltage range from 4.5 V to 36 V. Each channel can deliver up to 1 A of continuous current. The input logic is compatible with standard TTL or CMOS levels. Thermal shutdown protection is included to safeguard the device under overload conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Quadruple half-H bridge configuration for independent load control
• High voltage operation supporting inductive loads up to 36 V
• Integrated thermal shutdown protection for reliability
• TTL/CMOS compatible input logic levels

Buffers, Drivers, Receivers, Transceivers Applications

• DC motor control circuits
• Solenoid driver applications
• Lamp driving systems
• Industrial automation control modules

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the package type matches the DE4 designation (SOIC-16) before procurement. Confirm that the manufacturer code indicates Texas Instruments origin. Check for RoHS compliance markings if environmental regulations apply. Ensure the ordering suffix aligns with the required temperature grade and packaging format specified in the official datasheet.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when multiple independent low-current half-bridge drives are required. It is suitable for applications needing high voltage tolerance with moderate current capacity. Consider the thermal performance requirements given the 1 A per channel limit. Evaluate the need for built-in protection features versus external circuitry.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN7547x family of half-H drivers. It provides a compact solution for controlling inductive loads without discrete transistor arrays. The DE4 package offers a surface-mount option for automated assembly processes. It serves as a direct replacement for older discrete designs requiring similar functionality.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for pin-compatible alternatives within the same family if availability is an issue. Verify that substitute parts maintain the same voltage and current ratings. Ensure thermal characteristics match the original design constraints.