Maxim MAX17852 Battery Data Collection System,
Monitoring IC meeting ISO 26262 ASIL-D standards
Equipped with current sensing amplifier, gain error rate 0.3%


Maxim Integrated Korea launched the 'MAX17852,' an ASIL-D rated 14-channel high-voltage battery data acquisition system, on the 3rd. Designed for installation in various vehicle interiors, it is suitable for smart junction boxes, 48V electrical systems, and 400V charging systems.

Automotive battery management system (BMS) designers must implement voltage, current, temperature, and communication stability that meets ISO 26262 ASIL-D standards. The MAX17852 provides voltage, current, and temperature data with high accuracy through tight time synchronization. It enables standard cell voltage measurement of ±0.45mV at room temperature and a maximum error range of ±2mV in the 5–40℃ range, thereby increasing battery efficiency.

A current sensing amplifier is integrated, allowing current information to be collected simultaneously with cell voltage and temperature. The current sensing amplifier has a capacitance of ±300mV, a gain setting value of up to 256 times, and a current sensing gain error rate of 0.3%. Additionally, a Hall Effect sensor and a shunt resistor can be used as sensor components. With a highly integrated distributed solution, the board occupancy space is small and costs are reduced by up to 20%.