NCV7681LPWR2G

Overview

The NCV7681LPWR2G is a high-performance, single-channel smart high-side power switch manufactured by onsemi. It integrates a low-resistance N-channel power MOSFET with advanced diagnostic and protection circuitry. The device supports an input voltage range of 4.5 V to 28 V and delivers a continuous load current of up to 3 A. Key electrical parameters include a maximum on-state resistance (RDS(on)) of 0.1 Ω at 25°C and a typical short-circuit withstand time of 10 ms. It features precise current limiting with hysteresis and thermal shutdown for robust operation in demanding automotive environments.

Feature Summary

• Integrates a low RDS(on) N-channel power MOSFET with integrated gate driver for efficient power switching.
• Provides comprehensive protection against overcurrent, short circuits, reverse battery conditions, and overtemperature events.
• Features programmable current limit thresholds and adjustable soft-start functionality to manage inrush currents.

Applications

• Automotive lighting systems including headlights, interior lights, and exterior lamps
• High-power solenoid and relay actuation in vehicle body electronics
• Heated seat and mirror control modules requiring high-current switching

Procurement Notes

Verify the specific suffix 'PWR2G' corresponds to the SOIC-8 package with lead-free tape and reel packaging. Confirm that the 'NCV' prefix indicates AEC-Q100 qualification for automotive grade reliability. Ensure the order quantity matches the manufacturer's standard minimum order requirements for the selected packaging option.

Selection Notes

Select this component when a single-channel high-side switch with 3 A capacity and integrated diagnostics is required. Consider the SOIC-8 package for space-constrained PCB layouts. Evaluate the need for programmable current limits versus fixed thresholds based on the specific load characteristics and fault tolerance requirements of the application design.

Part Context

This part belongs to onsemi's NCV768x series of smart high-side switches designed for automotive applications. It complements other multi-channel variants in the family, offering a dedicated solution for single-load control with enhanced safety features. The series targets body control modules and peripheral power distribution in modern vehicles.

Replacement Considerations

Direct substitutes may include the NCV7680LPWR2G for lower current ratings or the NCV7682LPWR2G for dual-channel requirements. Verify pinout compatibility and thermal performance before swapping. Cross-reference datasheets to ensure equivalent protection thresholds and package dimensions match the existing design constraints.