MP4658 4-String Return LED Drivers

Monolithic Power Systems (MPS) MP4658 4-String Return LED Drivers with AC/DC Feedback are secondary-side LED drivers built for monitor and small-sized TV LED backlighting. The MP4658 controls the flyback power stage to regulate the LED current loop and the output supply voltage. The MP4658 integrates 4-string LED current balancing and is powered by a 6V to 36V input supply voltage (V_IN). This supply voltage allows an output compensation signal to control the primary-side flyback (or other power stages) via an optocoupler to regulate the output voltage (V_OUT).