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

X-Ware IoT Platform Integrates STM32 Firmware Update

Express Logic has announced that it has integrated the STMicroelectronics’ Secure Boot and Secure Firmware Update v.2.0 services with its X-Ware IoT Platform for its developers using the STMicroelectronics’ STM32-family of ARM Cortex-M microcontrollers.
The X-CUBE-SBSFU Secure Boot and Secure Firmware Update solution enables the update of the STM32 MCU built-in program with new firmware versions based on the X-Ware IoT Platform. The update process is performed in a secure way to prevent unauthorized updates and access to confidential on-device data. In addition, Secure Boot (Root of Trust services) checks and activates STM32 mechanisms, and checks the authenticity and integrity of X-Ware IoT Platform before every execution to ensure that invalid or malicious code cannot be run.

Because X-CUBE-SBSFU is built on top of STM32Cube software technology, the X-Ware IoT Platform integration will be portable across the entire range of STM32 microcontrollers, beginning with the STM32L4 and STM32L4+ series devices.

Express Logic  considers itself a safety leader in the embedded IoT space with its industrial-grade approach, including pre-certification to SIL 4 and ASIL D safety standards. The new secure boot and secure firmware update services from STMicroelectronics enhance security for Express Logic’s X-Ware IoT Platform for the STM32 microcontroller.

Express Logic | www.rtos.com

STMicroelectronics | www.st.com