BD6071HFN
最多可驱动3个串联LED的带PWM亮度控制的同步升压方式白色LED驱动器
BD6071HFN
最多可驱动3个串联LED的带PWM亮度控制的同步升压方式白色LED驱动器
面向小型液晶面板的背光用斩波型LED驱动器系列是可恒电流驱动白色LED的升压DC/DC转换器。无电流参差的串联连接和电流模式实现了快速瞬态响应,使白色LED亮灯更稳定。采用同步整流方式,可减少外接肖特基势垒二极管,同时采用小型封装,实现了安装面积的省空间化。BD6071HFN是从BD6072HFN将过电压、过电流限制器的值变更后的IC。
主要规格
特性:
Topology
Boost
Vin(Min.)[V]
2.7
Vin(Max.)[V]
5.5
Total Output Current (Max.)[mA]
35
Per Channel Drive(Max.)[mA]
35
Number of Outputs
1
Vout(Max.)[V]
14
Switching Frequency (Max.)[MHz]
1
Integrated Switching FET
Yes
Dimming
DC / PWM
Operating Temperature (Min.)[°C]
-30
Operating Temperature (Max.)[°C]
85
Package Size [mm]
2.9x3 (t=0.6)
特点:
・Boost DC/DC converter・Adjustment of brightness by external PWM pulse
・Possible to driving 3 LEDs
・Soft start function
・Synchronous rectification Boost DC/DC converter
・No external schottky diode required
・Output Open • Short protect