The OC6781 is a high-efficiency, high-precision step-up LED constant current driver controller.
OC6781 has built-in high-precision error amplifier, oscillator, constant current drive circuit, etc., which is especially suitable for high-power, multiple high-brightness LED string constant current drive.
The OC6781 is PWM controlled at a fixed frequency, and the operating frequency can be set by an external resistor.
The OC6781 has built-in frequency compensation, eliminating the need for external compensation, making the application design simple and reducing the number of external components.
The OC6781 integrates soft-start, output over-voltage protection, cycle-by-cycle current limiting, and over-temperature protection circuitry to reduce external components and improve system reliability.
The OC6781 is available in a SOP8 package.

Fields of application
LED light cups
Battery-powered LED string lights
Flat panel display LED backlight
High-power LED lighting