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Hybrid Electric Vehicles (HEV) and Electric Vehicles (EV)
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Li-ion Battery Monitor Chipset

The TB9141FG and TMPM358FDTFG Li-ion battery monitor chipset detects battery levels, performs cell balancing (equalizes battery levels) and detects abnormal battery status.

The TB9141FG monitors up to 16-cells for automotive applications and is a key requirement for any HEV architecture. Its integrated design reduces the number of parts in a battery monitoring system contributing to the development of smaller and simpler systems. The TMPM358FDTFG microcontroller, built around the ARM®Cortex™-M3 CPU core, includes numerous peripheral functions and is compliant with safety standards (IEC61508 / ISO262621).

TB9141FG Battery Monitor IC
  • The device uses a differential configuration in a daisy chain communication and is able to communicate even in a noisy environment.
  • The TB9141FG incorporates cell balance switches for each cell and is able to measure battery voltage while cell balancing.
  • The TB9141FG uses a 96V process and realizes 16-cell li-ion battery monitoring with a single IC.
  • The TB9141FG incorporates many self-test functions for use in ISO26262-compliant systems.
TMPM358FDTFG Microcontroller
  • The TMPM358FDTFG incorporates a backup power supply for 16-bit prescale counter and 32-bit up counter. The backup power supply is also used for retaining stand-by SRAM data, which contains battery parameters.
  • ECC is incorporated for securing RAM data, including backup RAM.
  • The TMPM358FDTFG incorporates many self-test functions for use in ISO26262 compliant systems.
  • Software libraries will be developed under the ISO26262 certified software development process.
 
 
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1Toshiba obtained ISO26262 certification for functional safety of software development process for automotive applications on March, 2012.
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