▲Infineon TLE9015DQU (Photo courtesy of Infineon)

Battery cell monitoring and balancing solutions available
Infineon component interoperability and software utilization

Infineon has introduced a family of battery management ICs that can be used in battery management systems for hybrid electric vehicles as well as two- and three-wheeled electric vehicles.

Infineon Technologies announced today the launch of a new family of battery management ICs that enable optimized battery cell monitoring and balancing solutions.

Combining excellent measurement performance with high application robustness, the TLE9012DQU and TLE9015DQU are competitive system-level solutions for battery module, cell-to-pack, and cell-to-car battery topologies.

These products are suitable for mild hybrid electric vehicles (MHEVs), hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), battery electric vehicles (BEVs), and various industrial and consumer applications, and can also be used in energy storage systems and two- and three-wheeled electric vehicle battery management systems.

“The TLE9012DQU and TLE9015DQU are important products that complete Infineon’s battery management system, enabling customers to enjoy the interoperability of Infineon components and the wide range of available options,” said Finn Felsberg, Senior Vice President and General Manager of Infineon’s Automotive Power Integration and Supply Business. “We are enabling our customers to leverage our software,” he said. “Now, customers can minimize development effort and shorten their time to market.”

The new battery management IC can be used in safety-related applications, and the automotive BMS solution meets ASIL-D safety requirements and is ISO26262 compliant.

Additionally, these products are designed to work with AURIX™ microcontrollers and functional safety-capable PMICs using a Complex Device Driver, providing a complete solution for voltage and temperature sensing, balancing and communication for a variety of battery solutions.

The multi-channel battery monitoring and balancing system IC TLE9012DQU can perform accurate voltage measurements for state of charge (SoC) and state of health (SoH) calculations, which are important requirements for any battery management system.

The TLE9012DQU is a monitoring and balancing IC designed to meet ASIL-D requirements for lithium-ion battery packs and can be controlled by a microcontroller via UART or via an isolated UART interface using the new TLE9015DQU iso-UART transceiver IC.

The TLE9012DQU's design is based on a parallel ADC architecture. It achieves high accuracy through 16-bit DS ADC technology, and its high internal oversampling ensures excellent noise reduction. It features sub-10µs sync-on-sample across the entire battery pack, maintaining accuracy throughout its lifespan with minimal external components.

The TLE9015DQU is a battery monitoring transceiver IC designed to daisy-chain multiple TLE9012DQU devices within a lithium-ion battery.

The device supports ring communication using two UART and iso-UART interface pairs, reducing system costs, includes an error management unit and allows multiple inputs and outputs to be programmed for each TLE9012DQU, enabling bidirectional information flow.