Powerint LNK406EG 13.5W PAR30 LED驱动器参考设计(DER314)

Powerint公司的13.5W隔离的可调光的PFC LED驱动器采用LinkSwitchTM-PH系列的LNK406EG器件,输入电压185VAC到265VAC,输出36V/425mA,可用于PAR30 / PAR38反射灯.本文介绍了LinkSwitch-PH系列LED驱动器主要特性,框图,7W和14W LED驱动器电路图以及用于PAR30 / PAR38的13.5W LED驱动器参考设计DER314主要特性和指标,电路图和材料清单,变压器电路图和PCB布局图.

The LinkSwitch-PH dramatically simplifies implementation of LED drivers requiring long lifetime, high efficiency, PF >0.9, and TRIAC dimming capability (LNK403-409). The single-stage combined power factor and constant-current controller eliminates a switching stage and the electrolytic bulk capacitor. The advanced primary-side control used by the LinkSwitch-PH device provides accurate constant current control while eliminating the need for an optocoupler and current sensing circuits.

LinkSwitch-PH incorporates a 725 V power FET, a continuous-mode PWM controller, a high voltage switched current source for self biasing, frequency jittering, protection circuitry including cycle-by-cycle current limit and hysteretic thermal shutdown.

LinkSwitch-PH LED驱动器主要特性:

Product Highlights

Dramatically Simplifies Off-line LED Drivers
..

查看全文