LNK574DG集成電路（IC）的ACDC轉換器離線開關規(guī)格書PDF中文資料

Lowest System Cost with Zero Standby

(1 mW Output Power)

? Automatically enters low consumption power-down mode when load

drops below ~0.2 of full load for LNK576 and ~0.6 for LNK574

? Detects load reconnection and automatically restarts regulation

? Simple upgrade to existing LinkSwitch-LP designs

? Very accurate IC parameter tolerances improve system manufacturing

yield

? Suitable for low-cost clampless designs

? Frequency jittering greatly reduces EMI filter cost

? Extended package creepage improves system field reliability

Advanced Protection/Safety Features

? Accurate hysteretic thermal shutdown protection – automatic

recovery reduces field returns

? 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 excellent transient load response with no

overshoot

EcoSmart?– Energy Efficient

? No-load or standby (1 mW output power) consumption as low as

<5 mW at 230 VAC input (Note 1)

? Easily meets all global energy efficiency regulations with no added

components

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

Applications

? Chargers for cell/cordless phones, PDAs, power tools, MP3/portable

audio devices, shavers, etc.

? Standby power supply for TV, video displays, and appliances