Infineon’s BCR431U is a linear LED driver IC in a small SOT23-6 package 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. The voltage drop at the integrated LED driver stage is 200mV max. at 37mA improving the overall system efficiency and providing extra voltage headroom to compensate for tolerances of LED forward voltage and supply voltage. Despite temperature changes, the driving current is always under control. Thanks to a smart temperature controlling circuit which is reducing the LED current when the junction temperature of BCR431U is very high.

The BCR401W linear LED driver IC is tailored to drive low power LEDs in general and automotive lighting applications.

The BCR401U linear LED driver IC is tailored to drive low power LEDs in general and automotive lighting applications.

The BCR321U linear LED driver IC is tailored to drive low and mid power LEDs in general and automotive lighting applications.

The BCR602 is a perfect fit for 48V LED applications by combining small form factor with low cost. Through its higher integration, BOM savings and ensuring long lifetime of LEDs, this controller has many advantages compared to discrete solutions.BCR602 is a linear LED controller IC regulating the LED current with an external driver transistor. It supports either NPN bipolar transistors or N-channel MOSFETs to cover a wide LED current and power range.AC line ripple suppression, flexible dimming options and protection features make it a perfect fit for LED modules allowing for dimmable, flicker-free light and longevity of LEDs.

BCR601 is a linear LED controller IC regulating the LED current with an external driver transistor. It supports either NPN bipolar transistors or N-channel MOSFETs to cover a wide LED current and power range up to several amperes. The LED current is fully scalable by dimensioning an external resistor at MFIO pin.A unique feature of BCR601 is to provide feedback to the primary side via an optocoupler to control the output voltage of the primary side converter, e.g. XDPL8218. The integrated control loop minimizes the voltage overhead and power dissipation of the external driver transistor. This capability, coupled with the adjustment of voltage overhead by external configuration according to application needs, leads to efficient LED systems.AC line ripple suppression, analog dimming option and various protection features round up this device for LED drivers allowing for flicker-free light and longevity of LEDs.

The BCR320U linear LED driver IC is tailored to drive low and mid power LEDs in general and automotive lighting applications.

The BCR402U linear LED driver IC is tailored to drive low power LEDs in general and automotive lighting applications.

The BCR402U linear LED driver IC is tailored to drive low power LEDs in general and automotive lighting applications.

The BCR402W linear LED driver IC is tailored to drive low power LEDs in general and automotive lighting applications.