BCR42xU LED Driver Infineon BCR42xU LED driver provides a low-cost solution for driving 0.25W LEDs with an LED forward current up to 150mA. The internal breakdown voltage is 40V, which is the maximum voltage that the Infineon BCR42xU LED driver IC can sustain. With no need for additional external components like inductors, capacitors, and freewheeling diodes, the Infineon BCR42xU LED drivers are a cost-efficient and PCB-area saving solution.