BD6142AMUV
最多可驱动80个LED的内置FET的8ch白色LED驱动器
BD6142AMUV
最多可驱动80个LED的内置FET的8ch白色LED驱动器
此IC是将最大可升压至41V的PWM方式DC/DC转换器和最大可驱动30mA的电流驱动器集于一身的白色LED驱动器。通过外部PWM信号对IC的电源控制引脚或电流驱动器的电源控制引脚进行控制，可实现大范围、高精度的亮度控制。采用比精度高的电流驱动器，电流驱动器的列间误差小，适合用来减少显示器的亮度不均现象。
主要规格
特性：
Topology
Boost
Vin(Min.)[V]
4.2
Vin(Max.)[V]
27
Total Output Current (Max.)[mA]
240
Per Channel Drive(Max.)[mA]
30
Number of Outputs
8
Vout(Max.)[V]
41
Switching Frequency (Max.)[MHz]
1.6
Integrated Switching FET
Yes
Dimming
DC / PWM
Operating Temperature (Min.)[°C]
-30
Operating Temperature (Max.)[°C]
85
Package Size [mm]
4.0x4.0 (t=1.0)
特点：
・High efficiency PWM step-up DC/DC converter・High accuracy & good matching current drivers 8-ch (MAX30mA/ch)
・Integrated 50V power Nch MOSFET
・Soft Start function
・Drive up to 11 LEDs in series, 8 strings in parallel
・Wide input voltage range (4.2V to 27V)
・Over-voltage protection
・External SBD open detect / Output Short protection
・Over current limit
・CH Terminal open / GND short protect
・CH over voltage protect / LED short protect
・Thermal shutdown (TSD)
・Under voltage lockout (UVLO)
・PWM dimming (200Hz to 25kHz)
・Analog dimming
