ASIL-D DAQ system for automotive battery systems

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Analog and mixed-signal semiconductor company Maxim Integrated Products has introduced what it says is the industry's first data acquisition (DAQ) system to achieve ASIL-D compliance for voltage, current, temperature, and communication of a battery management system (BMS).

www.smart2zero.com, Feb. 02, 2021 – 

Designed for integration within electric vehicles, hybrid electric vehicles, and other transportation systems, the MAX17852 14-channel, high-voltage, ASIL-D data-acquisition system IC is offered as ideal for smart junction box, 48-V and other automotive battery systems that can see voltages up to 400 V and beyond. The MAX17852, says the company, was designed and manufactured to enable customers to design their systems to meet the highest ASIL-D standards for voltage, current, temperature and communication.

"Enabling systems to achieve the highest level of safety (ASIL D) for a BMS system is really a must for consumers to feel safe in their electrified vehicles," says Tamer Kira, executive director for the Automotive Business Unit at Maxim Integrated. "The MAX17852 is the fastest and most accurate in voltage, current and temperature measurements and that is why it is the first battery data acquisition system in the industry to achieve the highest safety rating for all the major components of a BMS system."

The small, cost effective IC, says the company, also offers the highest accuracy for delivering voltage, current and temperature data with tight time synchronization. It allows a typical cell voltage measurement of ±0.45 mV at room temperature and a maximum of ±2 mV error in a temperature range of 5 degrees to 40 degrees Celsius, enabling car OEMs to get the most mileage range out of their batteries.

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