BD2243G
1ch 过电流检测值可变型高边开关IC
BD2243G
1ch 过电流检测值可变型高边开关IC
BD2242G、BD2243G内置了一个通道的用于通用串行总线(USB)电源线的高边开关。电源开关部内置了1个电路的低导通电阻N沟道MOSFET，还内置了过电流限制、过温保护、欠压锁定、软启动等功能。通过变更外置电阻，可在200mA～1.7A的范围内调整过电流检测值。
主要规格
特性：
Supply Voltage(Min.)[V]
2.8
Supply Voltage(Max.)[V]
5.5
Current consumption(Typ.)[µA]
120
ON Resistance [mΩ]
89
Channel Number [ch]
1
Control Input Logic
Active Low
Over Current Detect [A]
0.2 to 1.7
Output Turn on Time [ms]
1
Thermal Shut Down
Recovery
Flag Output Delay at Over Current [ms]
7
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
2.9x2.8 (t=1.25)
特点：
・ Adjustable Current Limit Threshold: 200mA to 1.7A・ Low On-Resistance (Typ. 89mΩ) N-channel MOSFET Built-in
・ Soft-Start Circuit
・ Output Discharge Function
・ Open-Drain Fault Flag Output
・ Thermal Shutdown
・ Under-Voltage Lockout
・ Reverse Current Protection when Power Switch Off
・ Control Input Logic - Active-High: BD2242G - Active-Low: BD2243G
