The R7779C 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 R7779C provides users a superior AC/DC power application of higher efficiency, few external component count, and low cost solution. It features frequency jitter, Under Voltage Lockout (UVLO), Leading Edge Blanking (LEB), internal slope compensation in the tiny SOP-7 package, and offers complete protection coverage with Over Temperature Protection (OTP), Over Load Protection (OLP) and Over Voltage Protection (OVP).
Applications
- Switching AC/DC Adaptor
- TV and Monitor Application
- Low Standby Power Home Appliance