Maxim Integrated Products MAX17843 battery management system (BMS) for vehicles
Maxim is enabling a safe, smart car of the future with the MAX17843 battery management system (BMS) — a 12-channel, high-voltage, smart sensor data acquisition device featuring robust communications and comprehensive diagnostics.
Its differential universal asynchronous receiver/transmitter (UART) uses capacitive isolation and is claimed to reduce bill of materials (BOM) costs and failure in time (FIT) rates. With this, designers can save up to 90% of their isolation BOM cost. The flexible UART enables robust communications in noisy environments.
Using Maxim’s daisy-chain architecture and successive-approximation-register (SAR) analog-to-digital converter (ADC), the product captures fast voltage measurements and delivers high EMC performance. It is applicable for a variety of automotive and EV powertrain applications.
The product adheres to ISO 26262 and ASIL D requirements (also applicable for ASIL C), as well as TUV certification in design and management process, and additionally meets various BCI requirements. It supports 100 m daisy-chain segments and high noise immunity.
The battery management system proactively detects faults and is important to the safety of vehicles, giving users the functionality necessary for an intelligent battery management operation. It operates over the -40 to +125°C temperature range and is available in a 64-pin LQFP package (10 x 10 mm).
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