LNK419EG

LinkSwitch™-PH single-stage PFC, primary-side constant current control and TRIAC dimming/non-dimming options dramatically simplifies implementation of LED drivers requiring long lifetime, high efficiency, PF <gt/>0.9, and TRIAC dimming capability (LNK403-410). 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 725V 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. Meets high voltage creepage requirement between DRAIN and all other signal pins both on PCB and at package. Typically used in off-line LED driver applications.

• Minimum output power of 8W at CBP = 10µF and 20W at CBP = 100µF (85-132VAC, RV = 2Mohm)
• Dramatically simplifies off-line LED drivers, EcoSmart™ energy efficient
• Accurate and consistent performance, advanced protection and safety features
• Auto-restart for short-circuit protection, open circuit fault detection mode
• Single-stage combination of power factor correction and accurate constant-current (CC) output
• Simple primary-side PWM dimming interface, universal input voltage range
• Single-stage PFC combined with output CC control
• Greatly increases efficiency, <gt/>90% achievable, reduces component count, no current sense resistors
• Low standby power remote ON/OFF feature (<lt/>50mW at 230VAC)
• Compensates for transformer inductance variations, compensates for line input voltage variation

警告

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.