OC522B is a multifunctional average current type LED constant current driver with simple peripheral circuits. It is applicable to the field of high-power dimmable constant current LEDs with step-down BUCK in the voltage range of 5-100V.
The OC522B’s PWM port supports ultra-small duty cycle PWM dimming and responds to pulse widths as low as 60ns. When the PWM port is high, the chip works normally. When the chip is low, the chip output is turned off.
OC522B adopts average current control algorithm, the output current constant current accuracy is ≤5%, and the output current is less affected by the input and output voltage and system inductance. The chip integrates loop compensation, the peripheral circuit is simple, and the system is more stable and reliable.
The OC522B is available in a SOP8 package.

Applications
Landscape lighting wall washers
Stage dimming effect lights
High-end automotive lighting
LCD backlighting