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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 150MA 6TSOP
- Series：-
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Linear
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：40V
- Voltage - Output：40V
- Current - Output / Channel：150mA
- Frequency：-
- Dimming：PWM
- Applications：-
- Operating Temperature：-55°C ~ 150°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74, SOT-457
- Supplier Device Package：6-TSOP
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The NCR421UX is a linear LED driver IC from Nexperia, housed in a surface-mount SOT457 (SC-74; TSOP6) plastic package. It integrates an NPN transistor with an on-chip resistor and two diodes to provide a stable output current of 10 mA. The device supports a maximum input voltage of 40 V and operates within a temperature range of -55°C to 150°C. Designed for constant current applications, it features linear PWM dimming capability and delivers up to 150 mA drive capacity.
Feature Summary
- Integrates an NPN transistor, on-chip resistor, and two diodes into a single compact chip
- Provides stable constant current output for LED driving applications
- Supports linear PWM dimming functionality for brightness control
Applications
- LED indicator circuits requiring constant current drive
- Low-power lighting systems utilizing PWM dimming
- Compact electronic devices constrained by small form factor packages
Procurement Notes
Verify the specific ordering suffix against official Nexperia documentation to confirm pinout compatibility and thermal specifications. Ensure the selected variant matches the required operating temperature range and package type for your design constraints. Cross-reference datasheet revision dates to validate parameter accuracy before finalizing procurement decisions.
Selection Notes
Select this component when a simple, low-pin-count solution for constant current LED driving is required. The integrated resistor simplifies circuit design by reducing external component count. Consider the 10 mA stable output and 40 V input limit to ensure compatibility with the target LED load and supply voltage conditions.
Part Context
This part belongs to the NCR42xU series of LED drivers manufactured by Nexperia. These components are designed as cost-effective, space-saving solutions for basic LED control tasks. The series utilizes standard surface-mount packaging to facilitate automated assembly in consumer and industrial electronics manufacturing processes.
Replacement Considerations
The NCR420U is a related variant within the same product family. Verify functional equivalence regarding output current stability and pin configuration before substituting. Consult official Nexperia documentation to confirm interchangeability without modifying the existing PCB layout or circuit parameters.
