LinkSwitch-PH Series AC/DC发光二极管驱动器集成电路 :

The LinkSwitch-PH dramatically simplifies implementation of LED drivers requiring PF> 0.9, TRIAC dimming and high efficiency. LinkSwitch-PH incorporates a 725 V power MOSFET, a continuous-mode PWM controller, a high voltage switched current source for self biasing, frequency jittering, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry, all in a monolithic IC.

• Single stage power factor correction and accurate constant current (CC) output
• Flicker-free phase-controlled TRIAC dimming
• Eliminates optocoupler and all secondary current control circuitry
• Simple primary-side PWM dimming interface
• Compensates for transformer inductance tolerances
• Frequency jittering greatly reduces EMI filter size and costs
• Low standby power remote ON/OFF feature (<50 mW="" at="" 230="" VAC)<=""/>
• Auto-restart for short circuit protection
• Automatic thermal shutdown restart with hysteresis
• Applications: Commercial & Industrial lighting, Indoor lighting, Outdoor lighting.