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Product Detailed Parameters
- Description：NCR321PAS-Q/SOT1118/HUSON6
- Series：-
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR)
- Type：-
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- Internal Switch(s)：-
- Number of Outputs：-
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：-
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：-
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- Supplier Device Package：-
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Overview
The NCR321PAS-QX is a bipolar junction transistor (BJT) LED driver manufactured by Nexperia. It integrates an NPN transistor with two diodes on a single chip within a DFN2020D-6 package. The device provides a stabilized output current of 10 mA without external components, adjustable up to 250 mA with an external resistor. Key electrical parameters include a collector-emitter voltage of 40 V, continuous collector current of 250 mA, and power dissipation of 530 mW. It operates between -55°C and +150°C and supports PWM dimming up to 10 kHz.
Feature Summary
- Integrates a resistor-equipped NPN transistor and two diodes on one chip for compact design
- Provides stabilized output current of 10 mA without requiring external resistors
- Supports digital PWM input for dimming applications up to 10 kHz frequency
- Qualified to AEC-Q101 standards for automotive reliability
Applications
- Automotive interior lighting systems
- Dashboard and instrumentation illumination
- Number plate lights
- Generic constant current sources
Procurement Notes
Verify the specific suffix 'QX' indicates reel packaging when ordering. Confirm AEC-Q101 qualification requirements match your automotive application standards. Check the latest datasheet revision for any updates to thermal characteristics or pin configurations before finalizing PCB layouts.
Selection Notes
Select this component when space-constrained designs require integrated LED driving capabilities. It is suitable for applications needing precise current regulation without complex external circuitry. Consider the 1.4 V low voltage overhead for low-voltage supply systems. Ensure the 250 mA maximum current rating aligns with the target LED specifications.
Part Context
This part belongs to Nexperia's NCR series of LED drivers, designed to reduce component count and board space. The series includes variants like NCR320PAS and NCR321U in different packages. These devices are engineered for high current accuracy and robust performance in demanding environments, particularly within the automotive sector.
Replacement Considerations
Direct substitutes may include other Nexperia LED drivers in compatible packages such as the NCR320PAS-QX. Verify pin compatibility and electrical ratings against the original design requirements before substitution.
