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Product Detailed Parameters
- Description：NEXPERIA NCR401T - 10 MA LED DRI
- Series：*
- Mfr：NXP Semiconductors
- Package：Bulk
- Type：-
- Topology：-
- Internal Switch(s)：-
- Number of Outputs：-
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：-
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：-
- Applications：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The NCR401TR is a stabilized LED driver integrated circuit manufactured by NXP Semiconductors. It consists of a resistor-equipped PNP transistor and two diodes on a single chip, housed in an SOT457 (SC-74) plastic package. The device provides a stabilized output current of 10 mA with high accuracy across supply voltage variations. It features a low voltage overhead of 1.4 V and supports a maximum power dissipation of 750 mW. The component is qualified according to AEC-Q101 standards for automotive reliability.
Feature Summary
- Stabilized output current capability
- High current accuracy under supply voltage variation
- Low voltage overhead design
Applications
- Constant current LED driver
- Generic constant current source
- Automotive applications
Procurement Notes
Verify the specific suffix 'TR' indicates tape and reel packaging when sourcing from distributors. Confirm that the component meets AEC-Q101 qualification requirements if intended for automotive use. Ensure the selected supplier provides documentation confirming the SOT457 package type and the 10 mA nominal current specification.
Selection Notes
Select this component for designs requiring a compact, single-chip solution for driving LEDs with minimal external components. The low voltage overhead makes it suitable for battery-powered or low-voltage systems. Consider the 750 mW power dissipation limit when designing thermal management strategies for the application environment.
Part Context
This part belongs to the family of resistor-equipped transistor drivers designed to simplify LED control circuits. By integrating the biasing resistor and protection diodes on one chip, it reduces board space and component count compared to discrete solutions. The SOT457 package offers a small footprint suitable for dense PCB layouts.
Replacement Considerations
Check for direct equivalents from Nexperia, as they manufacture the NCR401U variant. Verify pin compatibility and electrical specifications such as the 10 mA current rating and 1.4 V overhead before substituting.
