GR1230H

Preliminary GR1230H Multi-Mode PWM Controller with Integrated Protections Features  Low Start-Up Current (<3uA)  Multi-Mode Operation CCM @ Heavy Load and Low Line QR-Like Operation @ Medium Load Green mode with Valley Skip at Light Load Burst Mode at No Load  Accurate Over Current Protection  Adjustment OVP on QRD Pin  Output Short Protection  Soft Driver  4ms Soft-start  OVP (Over Voltage Protection) on Vcc Pin  On Chip OTP Protection  SOT-26 Package with Few External Components Needed Description The GR1230H is a high performance multi-mode (QR/CCM) PWM controller for flyback converter. It minimizes the components counts and is available in a tiny SOT-26 package. Those make it an ideal design for low cost application. It provides functions of low startup current, green- mode power-saving operation, VCC over-voltage protection, and QRD pin abnormal conditions sensing to prevent the circuit being damaged from the abnormal conditions. Applications  Sw...