LinkSwitch-PH Design Kits

Power Integrations LinkSwitch-PH Design Kits incorporates a 725V power FET, a continuous-mode PWM controller, and a high voltage switched current source for self-biasing. 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 these LED drivers provides accurate constant current control while eliminating the need for an optocoupler and current sensing circuits. Power Integrations LinkSwitch-PH Design Kits also feature a long lifetime, frequency jittering, and protection circuitry including cycle-by-cycle current limit and hysteretic thermal shutdown.