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Maxim’s Battery Monitoring IC Selected for New Nissan LEAF

Maxim Integrated Products has announced that its single-chip, ASIL D-rated battery monitoring IC is being integrated into the new Nissan LEAF, the next evolution of its zero-emission electric vehicle. The battery monitoring IC meets the highest safety standards, supporting ISO 26262 and ASIL D requirements (also applicable for ASIL C). Its differential universal asynchronous receiver/transmitter (UART) using capacitive isolation reduces BOM costs and failure in time (FIT) rates. The flexible UART enables robust communications in noisy environments.
Using Maxim’s proprietary daisy-chain architecture and successive-approximation-register (SAR) ADC, the battery monitoring IC captures fast, accurate voltage measurements and delivers high electromagnetic capability (EMC) performance. The chip also offers a comprehensive diagnostic feature that complies with bulk current injection (BCI) requirements that are designed to promote safe and smart future vehicles.

The chip supports ISO 26262 and single-chip ASIL D standards, meets various BCI requirements and offers comprehensive diagnostics. It also provides a reliable distributive and centralized cell-monitoring controller (CMC) architecture with UART. It supports 100 m daisy-chain segments and high noise immunity; supports emission, electrostatic discharge (ESD) and hot plugging requirements. Internal cell balancing and UART reduce BOM costs compared to competitive solutions. Maxim claims it as the only IC proven to enable capacitive or transformer isolation.

Maxim Integrated | www.maximintegrated.com


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Maxim’s Battery Monitoring IC Selected for New Nissan LEAF

by Circuit Cellar Staff time to read: 1 min