Κωδικός: LNK 564 PN

LNK564PN LNK564P OFF LINE SWITCHER IC DIP-8B

Energy Efficient Off-Line Switcher IC for Linear Transformer Replacement

 

Product Highlights

Lowest System Cost and Advanced Safety Features

·          Lowest component count switcher

·          Very tight parameter tolerances using proprietary IC trimming technology and transformer construction techniques enable Clampless™ designs – decreases component count/system cost and increases efficiency

·          Meets industry standard requirements for thermal overload protection – eliminates the thermal fuse used with linear transformers or additional components in RCC designs

·          Frequency jittering greatly reduces EMI – enables low cost input filter configuration

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

·          Proprietary E-Shield™ transformer eliminates Y-capacitor

 

Superior Performance over Linear and RCC

·          Hysteretic thermal shutdown protection – automatic recovery improves field reliability

·          Universal input range allows worldwide operation

·          Auto-restart reduces delivered power by >85% during short circuit and open loop fault conditions

·          Simple ON/OFF control, no loop compensation needed

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

 

EcoSmart® – Energy Efficiency Technology

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

·          No-load consumption

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

 

Applications

·          Chargers for cell/cordless phones, PDAs, power tools, MP3/portable audio devices, shavers etc

·          Standby and auxiliary supplies

 

Description

LinkSwitch-LP switcher ICs cost effectively replace all unregulated isolated linear transformer based (50/60 Hz) power supplies up to 3 W output power. For worldwide operation, a single universal input design replaces multiple linear transformer based designs. The self-biased circuit achieves an extremely low no-load consumption of under 150 mW. The internal oscillator frequency is jittered to significantly reduce both quasi-peak and average EMI, minimizing filter cost.

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