R7780A Description
The R7780A is a high-performance current mode PWM controller with integrated HV start-up device inside. During start-up, a current source through integrated HV device to charge VDD capacitor for quick start-up while it dissipates no loss in normal operation. The R7780A provides users a superior AC/DC power application of higher efficiency, few external ponent count, and low cost solution.
R7780A Key Features
- Integrated HV Start-up Device
- UVLO: 9V/16.5V
- Current Mode Control
- Built-in 65kHz Operation Frequency
- Built-in Jittering Frequency
- Internal PWM Leading Edge Blanking
- Internal Slope pensation
- pensated Burst Triple Mode PWM
- Cycle-by-Cycle Current Limit
- Internal Auto Recovery OVP