VN771K

Overview

The VN771K is a high-side switch from STMicroelectronics designed for automotive applications. It integrates a single channel capable of driving inductive loads up to 40V with a continuous current capability of 25A. The device features an integrated bootstrap diode and offers comprehensive protection mechanisms including overcurrent, overload, thermal shutdown, and reverse battery protection. It operates within a junction temperature range of -40°C to +150°C and is housed in a PowerSO-8EP package.

Feature Summary

• Integrated bootstrap diode for simplified external circuit design
• Comprehensive diagnostic capabilities with open-load detection
• Robust protection against short circuits and thermal overstress

Applications

• Automotive lighting systems
• Inductive load switching in vehicle electronics
• Body control modules

Procurement Notes

Verify the specific ordering code suffix to ensure correct packaging and tape-and-reel specifications. Confirm that the requested variant matches the required pin configuration and thermal pad options. Cross-reference the datasheet revision date to ensure compatibility with latest design guidelines. Ensure supply chain authenticity through authorized distributors.

Selection Notes

Select this component when a single-channel high-side switch with integrated bootstrap functionality is required. Consider the 25A current rating and 40V voltage tolerance for appropriate load matching. Evaluate the PowerSO-8EP package for thermal performance needs in compact automotive enclosures.

Part Context

This part belongs to the VN77x family of high-side switches. These devices are engineered for robust automotive environments, providing reliable switching for various loads. The family shares common interface protocols and protection features while varying in channel count and current ratings.

Replacement Considerations

Check for direct cross-reference part numbers from STMicroelectronics or qualified alternatives with identical pinout and electrical characteristics. Verify that any substitute supports the same bootstrap diode integration and diagnostic features.