BCR430U

Overview

Linear low-voltage-drop LED driver IC

Long term reliability and longevity of LEDs are key. BCR430U is the best choice when you need to drive low-power LED strings and strips supplied by a DC voltage source and at the same time requesting more flexibility in voltage headroom.

BCR430U is a linear LED controller IC in a small SOT23-6 package regulating the LED current in standalone operation without the need of any external power transistor. It is suitable for driving currents from 20 to 100mA and the IC supply voltage range is from 6V up to 42V. The LED current level can be adjusted connecting a high-ohmic resistor R_set to pin RS.

Summary of features:

Supply voltage from 6 to 42V
Controls up to 100mA LED current
Typ. 135mV saturation voltage at 50mA
LED current precision ±5%
Smart over temperature protection

Target applications:

LED strips
Architectural LED lighting
LED displays and channel letters
Emergency lighting
Retail lighting
White good lighting

3D interactive board model

Infineon package picture BCR430U SOT23 6-pin linear LED driver IC

Diagrams

Typical application diagram 24V LED driver

LED strips can be driven by just one BCR430U offering ultra low voltage drop! The 400mV headroom easily enables a 4th LED, while the supply voltages do not need to be changed.