PT4213 高恒流精度 原边反馈 隔离方案.pdf

PT4213 Primary Side CC Controller GENERAL DESCRIPTION FEATURES The PT4213 is a primary side regulated constant CC Without Secondary Feedback current controller, which is designed for LED lighting Inductance Compensation applications. The device regulates output current Low Startup Current (10uA) without the secondary feedback loop. Adjustable Primary Side Current limit The device integrates an oscillator, a current sense VCC/FB Over Voltage Protection circuit, CC control circuit, a pre-driver and a complete VCC/FB UVLO set of protection circuits to protect against all fault Feedback Loop Open Circuit Protection conditions including output open/short circuit, line Over Temperature Protection under-voltage, and over temperature protection. The PT4213 is available in SOT23-6 package. RoHS compliant APPLICATIONS Off-line High Brightness General LED Lighting Integrated LED Lamps such as GU10, E27, PAR20/20/38 LED Lamps ORDERING INFORMATION TEMPERATURE TRANSPORT PACKAGE ORDERING PART NUMBER MARKING RANGE