STK621-738-E

Full Half-Bridge (H Bridge) Drivers Overview

The STK621-738-E is a half-bridge driver module designed for AC motor applications. It features three independent output channels with a continuous current of 15A per channel and a peak output capability of 30A. The device operates within a supply voltage range of 12.5V to 17.5V and supports an operating junction temperature from -20°C to 150°C. Packaged in a 29-SSIP module with 21 formed leads, it integrates logic interface control and includes protection mechanisms such as current limiting and under-voltage lockout (UVLO).

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Integrates three half-bridge drivers for multi-phase AC motor control.
• Provides high peak output current capability of 30A per channel.
• Includes built-in fault protection with current limiting and UVLO.
• Features auto-restart functionality and bootstrap circuit support.

Full Half-Bridge (H Bridge) Drivers Applications

• AC Motor drives
• Industrial motor control systems

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm the specific package variant matches the 29-SSIP form factor. Check for end-of-life status as some listings indicate obsolete product status. Ensure compatibility with existing PCB footprints for 21-lead SIP modules before procurement.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select this component for applications requiring integrated multi-channel half-bridge driving without external discrete transistors. Consider the 15A continuous and 30A peak ratings against load requirements. Evaluate the 12.5V-17.5V supply constraint against available system power rails. Verify thermal management capabilities given the 150°C junction temperature limit.

Full Half-Bridge (H Bridge) Drivers Part Context

This part belongs to the family of intelligent power modules focused on motor control solutions. It consolidates gate drive and protection functions into a single SIP package, simplifying design complexity for industrial AC motor applications compared to discrete driver implementations.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical specifications if considering alternative manufacturers' equivalents.