BD81A44EFV-M
4ch升降壓型白光LED驅動器
BD81A44EFV-M
BD81A44EFV-M
4ch升降壓型白光LED驅動器
BD81A44EFV-M是35V高耐壓的白光LED驅動器。1chip中內建4ch恆電流輸出，高達120mA/ch，最適合高亮度LED驅動。內建對應升降壓電流模式的DC/DC控制器，對於電源電壓變動，可實現穩定的動作。可通過PWM輸入進行調光控制(10,000:1)
Product Detail
功能安全:
類別 : FS supportive
A product that has been developed for automotive use and is capable of supporting safety analysis with regard to the functional safety.
規格:
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]
9.7x6.4 (t=1)
Common Standard
AEC-Q100 (Automotive Grade)
功能:
- 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)
