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BCR431U
  • BCR431U

BCR431U

Active and preferred

BCR431U is a linear LED driver IC regulating the LED current in standalone operation without any external power transistor. It is suitable for driving currents up to 37mA and the IC supply voltage ranges from 6V up to 42V. The LED current level can be adjusted by connecting a high-ohmic resistor Rset to pin RS. Despite temperature changes, the driving current is always under control, due to the smart temperature controlling circuit.

Infineon Technologies BCR431U Product Info

16 April 2026 0

Parameters

Dimming

PWM dimming by RS pin

Iout max

43 mA

Iout

8 mA

Packaging

3k reel

Ptot max

600 mW

Qualification

Industrial

Type

Linear

Vdrop

0.105 V

VS range

6 V to 42 V

Features

  • Supply voltage from 6 to 42V
  • Controls up to 37mA LED current
  • Typ. 105mV saturation voltage at 15mA
  • Smart temperature control
  • LED current precision ±10%
  • High ESD robustness

Description

  • Flexible for 12V / 24V / 36V designs
  • Longer LED strips, less feeding points
  • For flexibility in power supplies used
  • High precision for low-power LEDs
  • Therm protection in criticaltemp ranges
  • Protection against surge events

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