Infineon Technologies has launched a new family of battery management ICs, including TLE9012DQU and TLE9015DQU. ICs enable an optimized solution for battery cell monitoring and balancing.
Combining excellent measurement performance with the highest 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 suitable for a wide range of industrial, consumer and automotive applications, such as mild hybrid electric vehicles (MHEV), hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV) and battery-powered electric vehicles (BEV). ). Additional applications include energy storage systems and battery management systems for two- and three-wheeled electric vehicles.
“With the TLE9012DQU and TLE9015DQU, Infineon reaches an important milestone and completes its battery management system offering,” said Finn Felsberg, senior vice president, GM Automotive Power Integration and Supply at Infineon. “Customers benefit from the interoperability of Infineon components as well as the broad software offering. As a result, development efforts can be minimized and time to market can be reduced.”
The new battery management ICs can be used in safety-relevant applications: automotive BMS solutions meet safety requirements up to ASIL-D and are ISO26262 compliant. Additionally, these products are optimized to work in conjunction with the AURIX family of microcontrollers and power management ICs with functional safety capabilities thanks to the Complex Device Driver.
This provides a complete solution for voltage and temperature sensing as well as balancing and communication across a variety of battery solutions.
Based on Infineon's cutting-edge technologies, the TLE9012DQU multi-channel battery monitoring and balancing system IC is capable of performing highly accurate voltage measurements for calculating State of Charge (SoC) and State of Health (SoH) – the key requirements for any battery management system.
Furthermore, the device is an ASIL-D compliant monitoring and balancing IC designed for lithium-ion batteries. It can be controlled directly by a microcontroller via UART or via an isolated UART interface with the new TLE9015DQU iso-UART transceiver IC.
The TLE9012DQU design is based on a parallel ADC architecture. This enables high accuracy through 16-bit DS ADC technology, excellent noise rejection through high internal oversampling, and advanced sample synchronization with less than 10 µs across the drums.
Additionally, dependence on external components for end-of-life accuracy can be reduced, if not eliminated.
The TLE9015DQU is a battery monitoring transceiver IC designed to connect multiple TLE9012DQU devices in a daisy chain within a lithium-ion battery. This device uses its two pairs of UART and Iso-UART interface to support ring communication, improving system cost efficiency.
By integrating an error management unit including multiple programmable inputs and outputs into each TLE9012DQU, the module also enables bi-directional flow of information.
