GR8818A

Preliminary GR8818A Primary Feedback PWM Controller for Flyback Application Features  Description The GR8818A is an excellent primary side feedback controller. It’s integrated constant voltage (CV) and constant current (CC) regulation functions. While it operates on CV mode, it’s built-in the cable compensation to compensate the voltage drop of the DC output cable to improve the load regulation. It minimizes the components counts and is available in a tiny SOT-26 package. Those make it an ideal design for low cost applications. It provides functions of low startup current, greenmode power-saving operation,. Also, the GR8818A is built-in the VCC over-voltage protection and FB pin to prevent the circuit being damaged from the abnormal conditions. Primary Feedback Control without Secondary Feedback Signal  Constant-Voltage(CV) and Constant-Current(CC) Regulation    Pulse by Pulse Current Limiting Low Start-Up Current (6uA) Fixed 40KHz Switching Frequency for Driving BJT       Built-In Soft Start Wide VCC Operation Range VCC Over-Voltage Protection Output Over-Voltage Protection Cable Compensation for CV Regulation SOT-26 Package, with Few External Components Needed Application    Low Power Adapter Cell Phone Charger Replacement for Linear Adapter Ordering and Marking Information GR8818A Package Code C: SOT-26 RoHS Code G: Green (Halogen Free) Device L: PB Free Device Code 1 18A X X XXX A 2010 3 Mar. B 2011 4 Apr. ● ● ● Code 2 Serial No. Code 1 Year...