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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 250MA 6DFN
- Series：-
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：16V
- Voltage - Output：16V
- Current - Output / Channel：250mA
- Frequency：-
- Dimming：PWM
- Applications：-
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：6-UDFN Exposed Pad
- Supplier Device Package：DFN2020D-6
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The NCR321PASX is a linear constant current LED driver IC manufactured by Nexperia USA Inc. It provides one output channel with a stabilized current of 10 mA without external components, adjustable up to 250 mA via an external resistor. The device supports PWM dimming and operates within a junction temperature range of -55°C to 150°C. It is housed in a DFN2020D-6 package.
Feature Summary
- Integrates a resistor-equipped NPN transistor and two diodes on a single chip
- Provides stabilized output current without requiring external resistors for the base setting
- Supports Pulse Width Modulation (PWM) dimming functionality
Applications
- LED lighting systems requiring constant current drive
- Backlighting applications in displays
- Indicator circuits in consumer electronics
Procurement Notes
Verify the specific suffix 'X' against the official Nexperia datasheet to confirm tape-and-reel packaging specifications. Ensure the order quantity aligns with manufacturer distribution requirements. Cross-reference the part number with authorized distributors to confirm authenticity and availability status before finalizing procurement.
Selection Notes
Select this component when a compact solution for driving LEDs with fixed or PWM-controlled current is required. The integrated design reduces external component count compared to discrete solutions. Verify that the required current setting falls within the 10 mA to 250 mA range and that the operating temperature environment suits the specified junction limits.
Part Context
This part belongs to the NCR32x series of LED drivers from Nexperia, designed for low-power LED applications. The series offers various current settings and packaging options to accommodate different board space constraints. The NCR321PASX specifically denotes the variant with defined internal resistance characteristics and reel packaging.
Replacement Considerations
Consult the official Nexperia documentation for direct pin-to-pin replacements within the NCR320PAS/NCR321PAS family. Verify electrical compatibility and thermal performance before substituting with other manufacturers' linear LED drivers.
