OC5222 is a multifunctional average current type LED constant current driver with simple peripheral circuits. It is suitable for the field of high-power dimming constant current LEDs in step-down BUCK with a voltage range of 5-60V.
The PWM port of the OC5222 supports ultra-small duty cycle PWM dimming, which can respond to a minimum pulse width of 60ns, and the chip works normally when the PWM port is high. When the chip is low, the chip output is turned off.
OC5222 adopts average current control algorithm, the output current constant current accuracy is ≤ 3%, 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 OC5222 implements three-function switching by controlling the ID port. When LD is in the air, the system is in highlight mode; When LD is VDD, the system is in low-light mode with 1/2 current; ID When connected to 0.2-1.2V analog dimming signal input, the system is analog dimming mode. LD switching mode is used to switch between high and low beams for automotive LED lighting. When LD is in analog dimming mode, the port voltage is below 0.2V and the output is off.
The OC5222 is available in a SOP8 package.

Fields of application
Landscape lighting wall washers
Stage dimming effect lights
High-end automotive lighting
LCD backlighting
Architectural lighting