With the MAX17852, designers of automotive battery management systems (BMS) can now integrate the industry’s first data acquisition system to achieve ASIL-D compliance for voltage, current, temperature, and communication along with exceptional safety, space reduction, and solution cost.
The Maxim Integrated MAX17852 is a flexible solution for the management of high- and low-voltage battery modules within electric or hybrid electric vehicles and other transportation systems.
It is well-suited for smart junction box, 48 V and other automotive battery systems operating at voltages of 400 V, 800 V, and beyond.
Maxim Integrated designed the device to measure 14 cell voltages, one current measurement, and a combination of four temperatures or system voltages with fully redundant measurement engines in 263 µs.
Alternatively, the analogue-to-digital converter (ADC) measurement engine alone can perform all inputs in 156 µs. Up to 32 devices can be daisy-chained to manage 448 cells and monitor 128 temperatures.
The MAX17852 also features Maxim Integrated’s battery-management UART or SPI protocol and supports an I²C master interface for external device control.
Optimised to support a reduced feature set of internal diagnostics and rapid-alert communication, embedded communication and hardware-alert interfaces also support ASIL-D and FMEA safety requirements.
The MAX17852 is supported by the MAX17852 evaluation kit, which, combined with a MAX17841B evaluation kit and a host PC, allows designers to quickly build and evaluate a system with up to 32 daisy-chain devices.