BD81A44MUV-M
4ch升降压型白色LED驱动器
BD81A44MUV-M
4ch升降压型白色LED驱动器
BD81A44MUV-M是35V高耐压的白色LED驱动器。1chip中内置4ch恒电流输出，高达120mA/ch，适合高亮度LED驱动。内置对应升降压电流模式的DC/DC控制器，对于电源电压变动，可实现稳定的动作。可通过PWM输入进行调光控制 (10,000:1)
主要规格
功能安全:
特性：
Topology
Buck-Boost
Vin(Min.)[V]
4.5
Vin(Max.)[V]
35
Total Output Current (Max.)[mA]
480
Per Channel Drive(Max.)[mA]
120
Number of Outputs
4
Vout(Max.)[V]
40
Switching Frequency (Max.)[MHz]
2.2
Dimming
PWM
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
125
Package Size [mm]
5.0x5.0 (t=1.0)
Common Standard
AEC-Q100 (Automotive Grade)
特点：
- Integrated Buck-Boost current mode DC/DC controller
- Integrated 4ch current driver for LED drive
- 10,000:1 PWM dimming @100Hz
- External switching frequency synchronization
- Built-In protection function (UVLO, OVP, OCP, SCP)
- LED abnormality detection function (Open/Short)
- Integrated VOUT discharge function (Buck-Boost or Buck structure limitation)
- AEC-Q100 Qualified (Grade 1)
