BD7220FV-C Series
Precision Coulomb Counter / Low Side Current Monitor for High-current Applications
Manufacturer: Rohm Semiconductor
Catalog
Precision Coulomb Counter / Low Side Current Monitor for High-current Applications
Key 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
Description
AI
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.
