BD7757MWX
同步整流DCDC转换器 1.5A FLASH LED驱动器
BD7757MWX
同步整流DCDC转换器 1.5A FLASH LED驱动器
BD7757MWX是同步整流升压DC/DC型1ch的1.5A FLASH LED驱动器。外接应用不需要整流用二极管，有助于实现高效率以及减少贴装面积。通过一线串行控制不仅可实现FLASH电流、TORCH电流的16级调节，还可调整计时器时间、UVLO阈值等。
主要规格
特性：
Topology
Boost
Vin(Min.)[V]
2.7
Vin(Max.)[V]
5
Total Output Current (Max.)[mA]
1500
Per Channel Drive(Max.)[mA]
1500
Number of Outputs
1
Vout(Max.)[V]
5.1
Switching Frequency (Max.)[MHz]
2
Data Input
UPIC
Integrated Switching FET
Yes
Operating Temperature (Min.)[°C]
-30
Operating Temperature (Max.)[°C]
85
Package Size [mm]
3x2 (t=0.6)
特点：
- Synchronous rectification step-up DC/DC converter.
- Control of registers via Uni-Port Interface Control ++ (UPIC)
- Maximum current of 1.5A in Flash mode (Low side LED Driver).
- Lighting Mode Setup
Flash Mode…1.5A (Max)
Torch Mode…450mA (Max) - Variable LED current
- Protection Circuits:
- Over Current Protection Circuit (OCP)
- Over Voltage Protection Circuit (OVP)
- VOUT – GND Short Protection Circuit
- LED Short / Open Protection Circuit
- Under Voltage Lock Out Circuit (UVLO)
- Thermal Shut Down Circuit (TSD)
- Battery Drop Protection Circuit
- Flash Timer Protection Circuit
