Κωδικός: LNK 364 DN

LNK364DN LNK364DG LNK364D OFF LINE SWITGHER IC SO-8C

Energy Efficient, Low Power Off-Line Switcher IC

 

Product Highlights

Optimized for Lowest System Cost

·          Proprietary IC trimming and transformer construction techniques enable Clampless™ designs with LNK362 for lower system cost, component count and higher efficiency

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

·          Self-biased supply – saves transformer auxiliary winding and associated bias supply components

·          Frequency jittering greatly reduces EMI

·          Meets HV creepage requirements between DRAIN and all other pins both on the PCB and at the package

·          Lowest component count switcher solution

 

Features Superior to Linear/RCC

·          Accurate hysteretic thermal shutdown protection – automatic recovery improves field reliability

·          Universal input range allows worldwide operation

·          Simple ON/OFF control, no loop compensation needed

·          Eliminates bias winding – simpler, lower cost transformer

·          Very low component count – higher reliability and single side printed circuit board

·          Auto-restart reduces delivered power by 95% during short circuit and open loop fault conditions

·          High bandwidth provides fast turn-on with no overshoot and excellent transient load response

 

EcoSmart® – Extremely Energy-Efficient

·          Easily meets all global energy efficiency regulations with no added components

·          No-load consumption <300mW without bias winding at 265 VAC input (<50mW with bias winding)

·          ON/OFF control provides constant efficiency to very light loads – ideal for mandatory CEC regulations

 

Applications

·          Chargers/adapters for cell/cordless phones, PDAs, digital cameras, MP3/portable audio players, and shavers

·          Supplies for appliances, industrial systems, and metering

 

Description

LinkSwitch-XT incorporates 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 startup and operating power are derived directly from the DRAIN pin, eliminating the need for a bias winding and associated circuitry.

 

 

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