Datasheet Summary
Primary Side CC Regulator for LED driver
DESCRIPTION：
PT4203 is targeted to below 10W LED lighting applications. It is designed for the flyback topology, and regulates output current without the secondary feedback loop. The PT4203 provide accurate CC (constant current) regulation with built in pensation circuitry. Integrated line and primary inductance pensation ensures output current free of line voltage and primary inductance variations. plete protection functions have been integrated allows PT4203 to protect against all fault conditions including cycle by cycle current limit, output open/short circuit, line under-voltage, and over temperature shut down. PT4203 is...