Datasheet Summary
4-String, Max 200mA/Channel, 80V Return LED Driver with AC/DC Feedback
DESCRIPTION
The MP4658 is a 4-string, secondary-side LED driver for LED backlighting, and is ideal for monitor and small-sized TV LED backlighting. It controls the flyback power stage to regulate the LED current loop and the output supply voltage. The MP4658 integrates 4-string LED current balancing. Powered by a 6V to 36V input supply voltage (VIN), the MP4658 outputs a pensation signal to control the primary-side flyback (or other power stage) via an optocoupler to regulate the output voltage (VOUT).
The MP4658 supports analog dimming and PWM dimming to the LED current through the ADIM and PDIM pins. For...