PT4203 Datasheet PDF

PowTech PT4203

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 compensation circuitry.

Part No.	PT4203
Datasheet	PT4203 Download
Manufacturer	PowTech
Description	Primary Side CC Regulator
Buy	Stock & Price

DESCRIPTION

： Integrated line and primary inductance compensation ensures output current free of line voltage and primary inductance variations. Complete 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 available in SOT23-5 package.

FEATURES

z z z z z z z z z z CC Control Without Secondary Feed back Compensates transformer Inductor Variation Compensates Line Voltage Variation Drive NPN or DNMOS Output Over Voltage Protection Output Short Circuit Protection Feedback resistor open circuit protection Line Under Voltage Protection Cycle by Cycle Current Limit Over Temperature Protection

APPLICATIONS

z 1-10W LED Power Supplier ORDERING INFORMATION PACKAGE SOT23-5 TEMPERATURE RANGE -40℃ to 85℃ ORDERING PART NUMBER PT4203E23E TRANSPORT MEDIA Tape and Reel MARKING 4203 TYPICAL APPLICATION CIRCUIT 华润矽威科技(上海)有限公司 PT4203_DSB Ver.