ROHM Product Detail

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

 
型号 | BD7220FV-CE2
Status | 推荐品
封装 | SSOP-B20
包装形态 | Taping
包装数量 | 2500
最小独立包装数量 | 2500
RoHS | Yes

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)

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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
X

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