ISO26262 certified, meeting various EMI/EMC requirements

Maxim Integrated Korea announced a new product, the MAX17843, a 12-channel high-voltage battery management system (BMS) solution.

The MAX17843 enables automakers to build high-reliability, low-cost lithium-ion battery packs with proven daisy-chain communication technology and extensive diagnostic capabilities.

Electric, hybrid, and plug-in hybrid vehicles are equipped with large lithium-ion battery packs comprised of hundreds or thousands of individual battery cells. By 2025, 25% of all vehicles sold worldwide are expected to feature electric drive systems. Consequently, automotive Tier 1 suppliers must develop highly reliable communication systems, along with intelligent battery management systems that are safe and cost-effective.

Maxim's MAX17843 enables the creation of safer and smarter BMSs of the future. The MAX17843 is certified by ISO 26262, ASIL D (and ASIL C), and German TUV, demonstrating compliance with the highest safety standards. It is also designed and tested to meet various EMI/EMC requirements of customers and provides extensive diagnostic capabilities.

In particular, the MAX17843's differential UART communication using capacitors reduces the bill of materials (BOM) cost and failure in time (FIT) rate, reducing the number and cost of expensive isolation components by up to 90%.

The MAX17843 leverages robust communication technology to enable customers to reliably configure both distributed and integrated architectures. Maxim's proprietary daisy-chain architecture has been proven to operate over cable lengths exceeding 100 meters and works in conjunction with a successive-approximation-register (SAR) analog-to-digital converter (ADC) to quickly and accurately measure and transmit battery voltage measurements. Furthermore, it supports proven application solutions for electrostatic discharge (ESD) and hot-plug scenarios to protect against various electrical stresses. This makes it suitable for a wide range of xEV powertrain applications.

“There is no room for compromise when it comes to automotive safety,” said Tamer Kira, director of the Automotive BMS business unit at Maxim Integrated. “The MAX17843 provides the features needed for safe and intelligent battery management operation.”