BD7220FV-C
适用于大电流应用的高精度库仑计/低边电流监测器
BD7220FV-C
BD7220FV-C
适用于大电流应用的高精度库仑计/低边电流监测器
BD7220FV-C是适用于大电流检测应用的库仑计IC。不仅内置16位ΔΣADC，还内置了高精度运算放大器和电流累加逻辑电路，因此可以高精度地计算电流累加值。电流检测输入支持分流电阻器和电流输出型电流传感器，并且采用SPI作为通信I/F。高精度测量所需的校准可以仅使用SPI命令执行，因此只使用本IC即可获取预测剩余电量所需的电流累加信息。
主要规格
特性：
Vcc (Min.)[V]
4.5
Vcc (Max.)[V]
5.5
Gain [V/V]
5/25/51
Resolution
16bit
Sense Resistor
External
Communication I/F
SPI
Monitor
Current, Voltage, Temperature
Operating Temperature (Min.)[℃]
-40
Operating Temperature (Max.)[℃]
125
Package Size [mm]
6.5x6.4 (t=1.45)
Common Standard
AEC-Q100 (Automotive Grade)
特点：
- AEC-Q100 Qualified(Grade1)
- 16-bit ΔΣADC
- Flexible Noise Filter(4 settings)
- Automatic Calibration via SPI
- High-accuracy Op-amp with 3 Gain Settings(5V/V, 25V/V, 51V/V)
- Supports Current Sensing Using Shunt Resistors
- Supports Current Sensing Using Current Output Type Current Sensors
- SPI I/F(Optional CRC)
- Coulomb Counter Function with SPI External Communication
- Accumulation Current Counter which Counts Charge and Discharge Independently
- Adjustable Current Detection Interruption(3 settings)
- 4 Operation Modes(NORMAL, SLEEP, SSHDN, OFF)
- Wake Up Current Detection Function
- UVLO
