BD9422EFV
大型LCD面板用白色LED驱动器
BD9422EFV
大型LCD面板用白色LED驱动器
BD9422EFV是大型LCD面板用高效率白色LED驱动器。此IC的6个通道内置了大电流驱动、高速脉冲响应型恒流LED驱动器,1个通道内置了升压型DCDC。BD9422EFV针对异常状态配备了过电压保护(OVP) 、LED OPEN・SHORT保护、DCDC的过电流保护(OCP)等各种保护功能。因此，BD9422EFV可在大范围输出电压下进行自动防故障设计。
主要规格
特性：
Topology
Boost
Vin(Min.)[V]
9
Vin(Max.)[V]
35
Per Channel Drive(Max.)[mA]
400
Number of Outputs
6
Switching Frequency (Max.)[MHz]
0.5
Dimming
PWM
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
13.6x7.8 (t=1)
特点：
- 6ch Constant LED drivers, available 400mA drive per 1ch.
- Constant current accuracy ±1.8% (IC only)
- Each 6ch external PWM inputs can control independent dimming .
- Current analog (linear) dimming by VREF
- 1ch boost controller with current mode (external FET)
- Several protection functions
DCDC part : OCP/OVP/UVLO/TSD
LED driver part :OPEN,SHORT detection - SHORT detection voltage is set by LSP terminal. Error detection output FAIL terminal inside (normal=Open, error=Drain)
- Master/Slave mode inside
