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BCR402UW6Q

20mA-100mA, Adjustable, SOT26

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Description

The BCR402UW6Q monolithically integrates a transistor, diodes and resistors to function as a Constant Current Regulator (CCR) for LED driving. The device regulates with a preset 20mA nominal that can be adjusted with external resistor up to 65mA. It is designed for driving 0.25W LEDs in strings and will reduce current at increasing temperatures to self-protect. Operating as a series linear CCR for LED string current control it can be used in applications with supply voltages up to 40V.

With no need for additional external components, this CCR is fully integrated into a SOT26 minimizing PCB area and component count.

Feature(s)

  • LED Constant Current Regulator Using PNP Emitter-Follower with Emitter Resistor to Current Limit
  • IOUT = 20mA ± 10% constant current (Preset)
  • IOUT up to 65mA adjustable with an external resistor
  • VOUT = 40V Supply Voltage
  • PD up to 750mW in SOT26
  • Negative temperature coefficient (NTC) reduces IOUT with increasing temperature
  • Parallel devices to increase regulated current

Application(s)

Constant current regulation (CCR) in:

  • Emergency lighting
  • Signage, advertising, decorative and architectural lighting
  • Retail lighting in fridge, freezer case and vending machines

Specifications & Technical Documents

Product Parameters

AEC Qualified Yes
Compliance (Only Automotive supports PPAP) Automotive
Topology Linear LED Driver
Minimum Supply Voltage (V) 1.4 V
Maximum Supply Voltage (V) 40 V
Maximum VOUT (V) 40 V
Number of Channels 1
LED Current Sense Voltage (mV) 700 mV
Output Current (mA) 100 mA
Channel Max. Output Current (mA) Preset mA
Accuracy (%) 10 %
Dimming PWM by external transistor
Temperature Range (°C) -55 to 150 °C

Related Content

Packages

Technical Documents

SPICE Model

Recommended Soldering Techniques

TN1.pdf

RoHS CofC

Purchase & Availablity

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2722 2025-02-11 2025-05-12 Change Lead Frame Type from SOT-23R to SOT-23T and Qualify Additional Diodes Internal Assembly and Test Site (CAT) for Select Automotive Products