BD7220FV-C
Precision Coulomb Counter / Low Side Current Monitor for High-current Applications
BD7220FV-C
Precision Coulomb Counter / Low Side Current Monitor for High-current Applications
BD7220FV-C is a coulomb counter IC for high-current applications. The product integrates a high-accuracy operational amp, a current accumulation logic circuit and a 16-bit ΔΣADC to perform current accumulation with high precision. The current sense input supports shunt resistors and output current sensors, and uses the SPI communication interface. BD7220FV-C only requires SPI commands to carry out the calibration necessary for high-precision measurement, so it can also get current accumulation information for battery state-of-charge estimation.
Product Detail
Specifications:
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)
Features:
- 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
