供应MR16驱动芯片AL8805价格,现货,创信电子7W驱动_AL8805

Diodes  Inc.  AL8808  30V  1A  Buck  LED  Driver
Diodes  Inc.  AL8808  30V  1A  Buck  LED  Driver  is  a  step-down  DC/DC  converter  designed  to  drive  LEDs  with  a  constant  current.  This  Diodes  Inc.  device  can  drive  up  to  8  LEDs,  depending  on  the  forward  voltage  of  the  LEDs,  in  series  from  a  voltage  source  of  6V  to  30V.  Series  connection  of  the  LEDs  provides  identical  LED  currents,  which  results  in  uniform  brightness  and  eliminates  the  need  for  ballast  resistors.  AL8808  switches  at  a  frequency  up  to  1MHz  with  controlled  rise  and  fall  times  to  reduce  EMI.  This  allows  the  use  of  small  size  external  components,  minimizing  the  PCB  area  needed.  Maximum  output  current  of  AL8808  is  set  via  an  external  resistor  connected  between  the  VIN  and  SET  input  pins.  Dimming  is  achieved  by  applying  either  an  analog  DC  voltage  or  a  PWM  signal  at  the  CTRL  input  pin.  An  input  voltage  of  0.4V  or  lower  at  CTRL  switches  off  the  output  MOSFET,  simplifying  PWM  dimming.

Features
LED  Driving  Current  Up  to  1A
Better  Than  5%  Accuracy
High  Efficiency  Up  to  96%
Fast  Controlled  Falling  Edges  7ns
Operating  Input  Voltage  from  6V  to  30V
High  Switching  Frequency  Up  to  1MHz
PWM/DC  Input  for  Dimming  Control
Built-In  Output  Open-Circuit  Protection
Built-In  Over-Temperature  Protection
Applications
MR16  Lamps
General  Illumination  Lamps

供应MR16驱动芯片AL8805价格,现货,创信电子7W驱动

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