RT7781 Datasheet | Richtek

® PowerZeroTM Series PWM Flyback Controller General Description The RT7781 is a series of high-performance current mode PWM controllers with Richtek proprietary PowerZeroTM technology. The PowerZeroTM provides an excellent green power solution, especially under light-load and no-load conditions. The integrated high-voltage device provides fast start-up function without external start-up resistors. It also Features brown-in and brown-out detection. The RT7781 offers plete protection functions such as internal Over-Temperature Protection (OTP), Over-Load Protection (OLP) and VDD Over-Voltage Protection (OVP). It also Features Secondary Rectifier Short-circuit Protection (SRSP)...