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VC906 50W升压恒流型LED驱动芯片

VC906 50W升压恒流型LED驱动芯片
VC906 50W升压恒流型LED驱动芯片 TO263-5
  • 品牌VCSEMI
  • 型号VC906
  • 封装TO220-5/TO263-5

详细描述

Features 
n  Wide 5V to 32V Input Vol tage Range 
n  Maximum Boost Output Up to 60V 
n  0.22V FB adj ustable LED drive current 
n  Di rect ly  drive  16  Seri es  1W/3W  LED  at 
VIN=24V 
n  Fixed 180KHz Swi tching Frequency 
n  Max. 5A Swi tching Current Capabili t y 
n  Up to 94% efficiency 
n  Excellent line and  l oad regul at i on 
n  EN PIN TTL shutdown capabili t y 
n  Internal  Opt imize Power MOSFET 
n  Buil t  in Sof t-Start Funct i on 
n  Buil t  in  Frequency  Compensat i on 
n  Buil t  inThermal Shutdown Funct i on 
n  Buil t  in CurrentLimi t Functi on 
n  Available  in  TO263-5L  &  TO220-5L package
Applications
n  LEDLi ght ing 
n  Boost constant current driver 
n  TFT LED Backlighting 
General Description 
The    regul ator  i s  fixed  f requency PWM  Boost  (step-up)  LED  constant  current driver,  capable  of   driving  Series  1W/3W/5W LED  uni ts  wi th  excellent  line  and  l oad regul at i on.  The  regul ator  is  simple  to  use because  i t  includes  internal  f requency compensat i on and a  fixed-f requency oscillator so  that  i t  requi res  a  minimum  number  of external   components to work. 
The    coul d  di rectly  drive  16  Seri es 1W/3W LED uni t s at VIN=24V. 
The  PWM  control   ci rcui t  i s  able  to  adj ust  the duty  rati o  linearly  f rom  0  to  90%.  An  enable funct i on,  an  over  current  protecti on  function is  buil t  inside.  An  internal  compensat i on bl ock  is  buil t  in  to  minimize  external component count. 

标签:  VC906,升压型恒流,LED驱动器
点击次数：  更新时间：2015-08-25  【打印此页】  【关闭】
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