Battery Management ICs
Infineon’s battery management ICs offer an optimize solution for cell monitoring and balancing
Infineon’s new family of dedicated battery management ICs offer the perfect solution for a wide variety of applications. Battery management ICs, also known as battery balancing ICs or battery monitoring ICs, are essential for the overall health of many automotive systems. These include automotive (MHEV, HEV, PHEV, and BEV), industrial (i.e. energy storage systems), and consumer products (i.e. ebike). Infineon integrated circuits and designs help you to layout your battery management system.
Our battery management ICs can be used in safety relevant applications. For example, our automotive BMS solutions meet safety requirements up to ASIL-D and are ISO26262 compliant. These products are designed to work together with the AURIX™ family of microcontrollers and functional safety capable PMIC. This provides a full solution for voltage and temperature sensing, as well as balancing and communication across a variety of battery solutions.
Battery monitoring systems for lithium-ion cells need to monitor the voltage and temperature of battery cells, performing critical functions such as cell balancing. Accurate cell voltage measurement will also ensure that the battery works within safe operating conditions in order to comply with functional safety requirements.
Infineon offers a complex device driver (CDD) for battery management systems. The CDD runs on AURIX TC38x microcontroller and supports the usage, the configuration and the supervision of Infineon’s BMS ICs. It acts as a gateway between the battery management system application software and the TLE9012DQU hardware devices and is ISO26262 as well as AUTOSAR compliant.
As a leader in battery management technology, we are continually developing our devices to meet the demands of our customers and 21st century applications. Our products include:
TLE9012DQU: This multi-channel battery monitoring and balancing system IC is designed for Lithium-Ion battery packs used in various applications across automotive, industrial, and consumer products. The module fulfills four main functions including cell voltage measurement, temperature measurement, cell balancing, and isolated communication to the main battery controller. Additionally, there are the necessary diagnosis tools to ensure proper function guaranteeing the safety of the persons around the controlled battery.
TLE9015DQU: An integral part of Infineon’s battery monitoring IC product family. This model uses its two UART and iso-UART interface pairs to support ring communication, improving the cost efficiency of the system. It is specifically designed for connecting several TLE9012DQU devices in a daisy chain inside a Lithium-Ion battery. The module also enables bidirectional information flow by including an error management unit with several inputs and outputs that are programmable on each TLE9012DQU.
Battery management systems are used to monitor and control batteries utilized in many applications. Battery balancing ICs are a crucial safety and functionality enabler wherever they are used.
Automotive battery management systems are used in electric vehicles including electric cars, trucks, and non-road vehicles such as golf carts, as well as machinery such as forklifts.
Grid and industrial power infrastructure
Grid infrastructure where batteries are used as backup power, including cell phone towers, A/C power substations, internet infrastructure, aviation support systems, tower communications, and weather stations.
An increasing number of consumer products such as ebikes and other leisure vehicles require battery power and rely on management systems for efficient and safe use.
Battery management system refers to the electronics that deliver information to the host system about status of the battery like state of charge and state of health information and perform the cell management.
Certain battery cell chemistries may become unstable in case of over voltage, charging after under voltage or overcurrent. Therefore, the Battery Management System is there to ensure that the cells in the system are always operated inside the SOA of the given chemistry. Infineon products contribute by providing voltage of each cell and temperature measurement through external resistor (NTC), the cell balancing as well as communicating the measurement results and diagnostic information to the main microcontroller.
Infineon´s Battery Management System devices family is designed and engineered for systems to support 800V and above. Infineon devices can be operated either directly from microcontroller by using UART or through iso UART interface by using the BMS transceiver IC which enables a galvanically isolated communication interface by inductive or capacitive coupling.
Yes, Infineon´s Battery Management System products have been designed fulfilling the highest quality standards and finally qualified according AEC Q100 qualification standard.
- Understand how Infineon's complex device driver software component for automotive BMS allows to supervise the battery’s state
- How it allows to accelerate the time to market, reducing development efforts and related costs