NCV8403BDTRKG

Overview

The NCV8403BDTRKG is a self-protected low-side power switch IC from onsemi, designed for automotive and industrial applications. It integrates a single N-channel MOSFET with control logic in a SOT-223-3 package. Key electrical parameters include a maximum drain-source on-resistance of 135 mΩ and a continuous current limit of 15 A. The device operates within a supply voltage range of 4.75 V to 26.4 V and supports junction temperatures up to 150°C. It features automatic restart after fault conditions and is qualified to AEC-Q100 standards.

Feature Summary

• Integrates self-protection mechanisms including overcurrent, overtemperature, and undervoltage lockout.
• Features automatic restart capability following fault clearance to restore load operation.
• Provides high-side or low-side switching flexibility with a single N-channel output stage.

Applications

• Automotive lighting systems
• Solenoid and relay driver circuits
• Motor control interfaces

Procurement Notes

Verify the specific suffix 'BDTRKG' against the official onsemi datasheet to confirm package type and tape/reel specifications. Ensure the order quantity matches the manufacturer's standard reel size requirements. Cross-reference the date code and lot number upon receipt to maintain supply chain traceability and quality compliance.

Selection Notes

Select this component when a robust, single-channel low-side switch with integrated protection is required. The 15 A current rating and low Rds(on) make it suitable for driving moderate-power loads. Consider the SOT-223 thermal performance for PCB layout optimization. Verify compatibility with system voltage levels and control signal logic thresholds before integration.

Part Context

This part belongs to the NCV8403A series of self-protected low-side drivers. It is an automotive-grade variant of the broader NCV840x family, offering enhanced reliability for harsh environments. The series provides a compact solution for replacing discrete MOSFETs and protection circuitry, simplifying design and reducing board space.

Replacement Considerations

Direct substitutes include NCV8403ASTT1G and NCV8403BSTT1G, which share similar functional characteristics but may differ in package or temperature grade. Verify pinout compatibility and thermal resistance values when transitioning between variants to ensure equivalent performance.