New battery management ICs offer excellent measurement performance

Infineon Technologies AG has launched a new family of battery management ICs, including TLE9012DQU and TLE9015DQU. The ICs enable an optimised solution for battery cell monitoring and balancing. Combining outstanding measurement performance with excellent application robustness, the new battery management ICs are a competitive system-level solution for battery modules, cell-to-pack and cell-to-car battery topologies. The devices are ideal for a broad range of industrial, consumer and automotive applications such as MHEV, HEV, PHEV and BEV. Further applications include energy storage systems and battery management systems for electric two- and three-wheelers.

"With the TLE9012DQU and TLE9015DQU, Infineon achieves an important milestone and completes its battery management system offering", says Finn Felsberg, senior vice president and general manager Automotive Power Integration and Supply at Infineon. "Customers benefit from the interoperability of Infineon's components as well as from the broad software offering. As a result, development efforts can be minimised, and time to market can be reduced."

The new battery management ICs can be employed in safety relevant applications: the automotive BMS solutions meet safety requirements up to ASIL-D and are ISO26262 compliant. Also, these products are optimised to work together with the AURIX family of microcontrollers and functional safety capable power management ICs due to the Complex Device Driver. This supplies a complete solution for voltage and temperature sensing and balancing and communication across various battery solutions.

The TLE9015DQU is a battery monitoring transceiver IC developed for connecting several TLE9012DQU devices in a daisy chain inside a Li-Ion battery. This device utilises its two UART and Iso-UART interface pairs to support ring communication, enhancing the system's cost efficiency. The module also allows bidirectional information flow by combining an error management unit including several inputs and outputs programmable on each TLE9012DQU.