OC5021B is a high-efficiency, high-precision step-down high-power LED constant current driver control chip.
OC5021B Peak current control with fixed turn-off time, the turn-off time can be adjusted by an external capacitor, and the operating frequency can be changed according to user requirements.
OC5021B By adjusting the external current sensing resistor, the driving current of the high-brightness LED lamp can be controlled to achieve the expected constant brightness.
Add a PWM signal on the DIM side to dim the LED light. The DIM side supports linear dimming at the same time.
OC5021B integrates a VDD regulator and over-temperature protection circuitry to reduce external components and improve system reliability.
OC5021B is available in a SOT23-6 package.

Fields of application
Bicycles, electric vehicles, motorcycle lights
A flashlight
LED spotlights
High-power LED lighting
LED backlight