Vehicle electrification efforts such as start/stop systems put addition strain on the battery. To keep the battery in optimal condition, system designers need to measure and monitor the battery’s state of health (SOH), state of charge (SOC) or state of function (SOF). ZMD AG’s ZSSC1856 Intelligent Battery Sensor IC performs these functions and more.
The IC has an 18-bit Sigma/Delta analog to digital converter (ADC) with an on-chip voltage reference and two input channels. One channel measures the voltage drop at the external shunt resistor to provide IBAT. The second channel measures VBAT and the temperature. Packaged in a 5x5x0.85-mm QFN32 package, the AECQ100-qualified ZSSC1856 uses less than 100 µA in sleep mode and consumes 10 to 20 mA in normal operation.
For more information about ZMDI’s ZSSC1856 Intelligent Battery Sensor IC, click here.