LNK353 - (LNK353 / LNK354) Low Power Off-Line Switcher IC

Power Integrations

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Datasheet Details

Part number	LNK353
Manufacturer	Power Integrations
File Size	898.70 KB
Description	(LNK353 / LNK354) Low Power Off-Line Switcher IC
Datasheet	LNK353_PowerIntegrations.pdf

LNK353 Product details

Description

LinkSwitch-HF integrates a 700 V 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 DRAIN pin, eliminating the need for a bias winding and associated circuitry.The 200 kHz maximum switching frequency allows very low ﬂux transformer designs, practically eliminating audible noise with th

Features

Optimized for Lowest System Cost.
Fully integrated auto-restart for short-circuit and open loop protection.
Self-biased supply.
saves transformer auxiliary winding and associated bias supply components.
Tight tolerances and negligible temperature variation on key parameters eases design and lowers cost.
High maximum switching frequency allows very low ﬂux density transformer designs, practically eliminating audible noise.
Frequency jittering.

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Published: Sep 26, 2007 |