BCR421UFD-7

$0.54

Description：IC LED DRVR LIN PWM 350MA 6DFN
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:bf24fe32a216 Category: LED Drivers IC Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：IC LED DRVR LIN PWM 350MA 6DFN
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Linear
Topology：-
Internal Switch(s)：No
Number of Outputs：1
Voltage - Supply (Min)：-
Voltage - Supply (Max)：18V
Voltage - Output：40V
Current - Output / Channel：350mA
Frequency：-
Dimming：PWM
Applications：Lighting, Signage
Operating Temperature：-55°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：6-UDFN Exposed Pad
Supplier Device Package：U-DFN2020-6
Grade：-
Qualification：-

Download product information

BCR421UFD-7

Overview

The BCR421UFD-7 is a linear LED constant current regulator manufactured by Diodes Incorporated. It operates within an input voltage range of 1.4 V to 40 V and delivers a fixed output current of 350 mA. The device supports PWM dimming at a frequency of 25 kHz and features a maximum power dissipation of 1.7 W. It is housed in a U-DFN2020-6 surface-mount package and functions reliably across an extended temperature range from -55 °C to +150 °C.

Feature Summary

Provides stable constant current regulation for single-channel LED applications
Supports low-frequency PWM dimming control for brightness adjustment
Operates with a wide input voltage range suitable for various supply conditions

Applications

General LED lighting modules
Automotive interior illumination systems
Indicator light circuits

Procurement Notes

Verify the specific suffix designation against official Diodes Incorporated documentation to confirm pinout compatibility and thermal characteristics. Ensure the procurement source provides valid RoHS compliance certificates and original manufacturer traceability. Cross-reference the part number with authorized distributor lists to avoid counterfeit components.

Selection Notes

Select this component when a compact linear solution is required for driving LEDs at 350 mA. The U-DFN2020-6 package offers a small footprint for space-constrained designs. Consider the 1.7 W power dissipation limit during thermal design to ensure operation within the specified junction temperature range without external heat sinking.

Part Context

This device belongs to the BCR421 series of linear LED drivers from Diodes Incorporated. It shares functional similarities with other members like the BCR421UFDQ-7, which carries automotive qualification. The series is designed to replace discrete transistor solutions, offering integrated protection and consistent performance in a standardized surface-mount format.