onsemi

NCV8402STT1G

NCV8402STT1G Description

The NCV8402STT1G from onsemi is an N-channel power MOSFET driver designed for low-side switching applications in automotive and industrial systems. This obsolete but robust component integrates a single 1:1 output with a 42V maximum load voltage and 2A continuous current capability, making it suitable for driving resistive, inductive, or capacitive loads. Its 165mΩ typical Rds(on) ensures efficient power handling with minimal conduction losses. The device operates without an external supply voltage, simplifying system design. Packaged in a SOT-223 surface-mount form factor, it is optimized for space-constrained PCB layouts while meeting automotive-grade reliability standards.

NCV8402STT1G Features

• Automotive-Grade Compliance: Qualified for harsh environments, ensuring reliability in automotive applications.
• Integrated Protection: Features fixed current limiting, over-temperature shutdown, and over-voltage protection for enhanced system safety.
• Auto-Restart Functionality: Automatically recovers from fault conditions, reducing downtime.
• Low On-Resistance: 165mΩ Rds(on) minimizes power dissipation and improves efficiency.
• Simplified Design: No external Vcc/Vdd required, reducing BOM complexity.
• Surface-Mount Package (SOT-223): Compact and suitable for high-density layouts.

NCV8402STT1G Applications

• Automotive Load Control: Ideal for driving relays, solenoids, or lamps in body control modules (BCMs), lighting systems, or power distribution units.
• Industrial Switching: Used in motor drivers, actuator controls, and power management systems requiring robust fault protection.
• DC-DC Converters: Efficiently manages low-side switches in buck/boost converters or load switches.
• Consumer Electronics: Suitable for battery-powered devices or portable equipment where space and efficiency are critical.

Conclusion of NCV8402STT1G

The NCV8402STT1G offers a cost-effective, high-performance solution for low-side power switching, combining automotive-grade durability with integrated protection features. While marked as obsolete, its auto-restart capability, low Rds(on), and simplified design make it a compelling choice for legacy or niche applications requiring reliability under demanding conditions. Engineers should evaluate alternative onsemi solutions for new designs but may leverage this device for maintenance or specific automotive/industrial use cases.