VN770K

Overview

The VN770K is a quad smart power switch manufactured by STMicroelectronics, designed for automotive applications. It integrates four high-side outputs capable of driving inductive loads such as motors and lamps. The device features a 40V supply voltage range and supports up to 9A per channel. It includes comprehensive protection mechanisms like over-temperature shutdown, over-current limiting, and reverse polarity protection. The component is qualified under AEC-Q100 standards and operates within a temperature range of -40°C to +150°C.

Feature Summary

• Integrates four independent high-side switches for simultaneous control of multiple loads
• Provides robust diagnostic feedback including open-load detection and short-circuit indication
• Incorporates thermal protection and current limiting to ensure safe operation under fault conditions

Applications

• Automotive brushed DC motor control
• High-power lamp driving systems
• Inductive load switching in vehicle electronics

Procurement Notes

Verify the specific suffix (e.g., K, KP, KTR) to match the required package type and reel quantity. Confirm that the requested variant aligns with the active production status or obsolescence notices provided by the manufacturer. Ensure compatibility with existing PCB footprints and thermal management requirements before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring isolated control of four high-side loads in an automotive environment. Consider the SO-28 package dimensions and thermal dissipation capabilities relative to the expected load currents. Evaluate the need for external components based on the integrated protection features and diagnostic signal requirements of the system architecture.

Part Context

This part belongs to the VN770 series of smart power devices from STMicroelectronics. These components are engineered for harsh automotive environments, offering high reliability and integration. The series typically includes variants with different packaging options to suit various manufacturing and assembly needs while maintaining consistent electrical performance characteristics.

Replacement Considerations

Check for direct substitutes within the same product family that may offer updated packaging or availability. Verify pin-to-pin compatibility and electrical parameter equivalence if considering alternative manufacturers. Review official end-of-life notifications to determine recommended long-term replacement strategies.