LNK403EG

The LinkSwitch-PH dramatically simplifies implementation of LED drivers requiring PF >0.9, TRIAC dimmer capability and high efficiency. The single-stage PF and constant current controller eliminates passive circuitry required for power factor correction and electrolytic bulk capacitor. The advanced primary-side control techniques used by the LinkSwitch-PH device provide accurate constant current control while eliminating the need for an optocoupler and secondary-side current control circuitry. 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.

• Minimum Output Power : 6.5 W
• Maximum Output Power : 12 W
• Single-stage combination of power factor correction and accurate constant-current (CC) output
  • Enables very long lifetime designs (no electrolytic capacitors)
  • Eliminates optocoupler and all secondary current control circuitry
  • Eliminates control loop compensation circuitry
• Simple primary-side PWM dimming interface
• Universal input voltage range
• LNK403-410 optimized for flicker-free TRIAC dimming
• Green Package
  • Halogen free and ROHS compliant package