NCV8403ADTRKG

Overview

The NCV8403ADTRKG 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 package. Key electrical parameters include a maximum drain-source voltage of 42 V and a continuous load current capacity of 14 A. The device features a typical on-resistance (Rds(on)) of 53 mΩ at 10 V gate drive. It operates within a junction temperature range of -40°C to +150°C and holds AEC-Q101 qualification. Protection mechanisms include fixed current limiting, overtemperature shutdown, and overvoltage protection.

Feature Summary

• Integrates self-protection features including current limit, overtemperature shutdown, and overvoltage protection.
• Designed for robust performance in harsh automotive and industrial environments.
• Features a low on-resistance N-channel MOSFET for efficient power distribution.
• Qualified to AEC-Q101 standards for automotive reliability.

Applications

• Automotive lighting systems
• Industrial motor control loads
• Power distribution units in vehicles

Procurement Notes

Verify the specific suffix ADTRKG against the official datasheet to confirm package type and tape/reel specifications. Ensure the design supports the required thermal management for the SOT-223 package given the 1.56 W power dissipation rating. Confirm AEC-Q101 compliance requirements match your application's automotive grade needs. Check for any recent product change notices that might affect pinout or electrical characteristics.

Selection Notes

Select this component when a single-channel, high-current low-side switch with integrated protection is required. It is suitable for replacing discrete MOSFETs and driver circuits to reduce board space. Consider the 14 A current rating and 42 V voltage rating to ensure adequate headroom for the load. The SOT-223 package offers a balance between thermal performance and footprint size for surface-mount assembly.

Part Context

The NCV8403A series belongs to onsemi's family of self-protected low-side drivers. These devices are engineered to simplify power switching designs by combining the power stage and protection logic into a single compact package. The series targets applications requiring reliable switching under fault conditions, such as short circuits or thermal overload, common in automotive electronics.

Replacement Considerations

Cross-reference tools may suggest alternatives like the NCV8405ADTRKG or NCV8401, but verify pin compatibility and electrical ratings carefully. Ensure any substitute matches the 42 V rating and 14 A current capability. Check if the replacement maintains the same SOT-223-3 package and AEC-Q101 qualification.

FAQ

What protection features are included in the NCV8403ADTRKG?

The device includes fixed current limiting, overtemperature shutdown, and overvoltage protection to safeguard the load and the IC itself.

Is the NCV8403ADTRKG qualified for automotive use?

Yes, it is qualified to AEC-Q101 standards, making it suitable for automotive applications.

What is the operating junction temperature range?

The device operates within a junction temperature range of -40°C to +150°C.