POWER INTEGRATIONS LNK605DG-TL Datasheet & Stock

LinkSwitch™-II dramatically simplifies low power CV/CC charger designs by eliminating an optocoupler and secondary control circuitry. The device introduces a revolutionary control technique to provide very tight output voltage and current regulation, compensating for transformer and internal parameter tolerances along with input voltage variations. The device incorporates a 700V power MOSFET, a novel ON/OFF control state machine, a high-voltage switched current source for self-biasing, frequency jittering, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry onto a monolithic IC. It compensates for transformer inductance tolerances, input line voltage variations and external component temperature variations. Auto-restart protection reduces power delivered by >95% for output short-circuit and control loop faults (open and shorted components). Applications includes chargers for cell/cordless phones, PDAs, MP3/portable audio devices, adapters and LED drivers.




Output power of 4.5W (adapter), 5.1W (open frame) at 85-265VAC

Energy efficient, accurate CV/CC switcher for adapters and chargers

Dramatically simplifies CV/CC converters, EcoSmart™ energy efficient

Eliminates optocoupler, all secondary CV/CC control and all control loop compensation circuitry

Very tight IC parameter tolerances using proprietary trimming technology

Frequency jittering greatly reduces EMI filter cost, meets all global energy efficiency regulations

Meets high-voltage creepage requirements between DRAIN and all other pins both on PCB and at package

No-load consumption below 30mW at 230VAC with optional external bias winding

ON/OFF control provides constant efficiency down to very light loads

No current sense resistors, maximizes efficiency, hysteretic thermal shutdown




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