NCR401UX

Overview

The NCR401UX is a constant current LED driver IC manufactured by Nexperia, designed for automotive applications. It features a stabilized output current of 10 mA with high accuracy across supply voltage variations. The device operates within a supply voltage range of 16 V to 40 V and supports an output voltage up to 38 V. It utilizes a TSOP-6 (SOT-457) surface-mount package and is qualified according to AEC-Q101 standards. The component functions as a resistor-equipped PNP transistor with two integrated diodes on a single chip, offering a low voltage overhead of 1.4 V and a maximum power dissipation of 750 mW.

Feature Summary

• Stabilized 10 mA output current with high accuracy under varying supply voltages
• AEC-Q101 qualified for automotive reliability requirements
• Integrated design reduces component count and board space
• Low voltage overhead of 1.4 V for efficient operation

Applications

• Constant current LED driver circuits
• Automotive lighting systems
• Generic constant current source implementations

Procurement Notes

Verify the specific suffix 'UX' against the official Nexperia datasheet to confirm the exact tape-and-reel packaging configuration and marking codes. Ensure the ordering part number matches the required SOT-457 package variant. Confirm AEC-Q101 qualification status is explicitly stated for this specific suffix in the manufacturer's documentation before finalizing procurement specifications.

Selection Notes

Select the NCR401UX when a fixed 10 mA constant current is required for automotive LED applications. Consider this component if board space optimization is critical due to its integrated PNP transistor and diode structure. Verify that the 1.4 V voltage overhead meets the system's headroom requirements. Ensure the operating temperature range of -55°C to +150°C aligns with the environmental conditions of the target application.

Part Context

The NCR401U series belongs to Nexperia's portfolio of LED lighting drivers specifically engineered for the automotive sector. These components are designed to replace discrete solutions, thereby simplifying circuit design and reducing overall bill of materials. The series emphasizes reliability and compactness, leveraging Nexperia's semiconductor expertise to provide robust performance in demanding automotive environments while maintaining strict quality standards.

Replacement Considerations

Publicly confirmed substitute part numbers for the NCR401UX are not available in the provided documentation. Engineers should consult Nexperia's official replacement guides or contact technical support directly for validated cross-reference information.