POWER INTEGRATIONS LNK305DG-TL Datasheet & Stock

LinkSwitch™-TN is specifically designed to replace all linear and capacitor-fed (cap dropper) non-isolated power supplies in under 360mA output current range at equal system cost while offering much higher performance and energy efficiency. LinkSwitch-TN devices integrate a 700V power MOSFET, oscillator, simple on/off control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC. The start-up and operating power are derived directly from the voltage on the DRAIN pin, eliminating the need for a bias supply and associated circuitry in buck or flyback converters. The fully integrated auto-restart circuit in the LNK304-306 safely limits output power during fault conditions such as short-circuit or open loop, reducing component count and system-level load protection cost. Applications include appliances, timers, LED drivers and industrial controls.




Output current of 175mA (MDCM), 280mA (CCM) at 230VAC and 175mA (MDCM), 280mA (CCM) at 85-265VAC

Cost effective linear/cap dropper replacement, EcoSmart™ extremely energy efficient

Much higher performance over discrete buck and passive solutions

Lowest cost and component count buck converter solution

Fully integrated auto-restart for short-circuit and open loop fault protection

Tight tolerances and negligible temperature variation

Supports buck, buck-boost and flyback topologies

Higher efficiency than passive solutions, Higher power factor than capacitor-fed solutions

Consumes only 50/80mW in self-powered buck topology at 115/230VAC input with no-load (opto feedback)

Meets California Energy Commission (CEC), Energy Star and EU requirements




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