STMicroelectronics L9963T-TR Battery Management System

The L9963T-TR from STMicroelectronics is a state-of-the-art battery management system (BMS) IC designed to meet the demanding requirements of automotive applications, particularly for electric and hybrid vehicles. This high-precision integrated circuit is engineered to ensure the safety, reliability, and efficiency of lithium-ion battery packs, which are critical components in the energy storage systems of modern vehicles.

Key Features

• Cell Monitoring: The L9963T-TR is capable of monitoring up to 14 series-connected battery cells for voltage, temperature, and health status, providing real-time data to ensure the battery operates within safe parameters.
• Balancing Functionality: It includes an active cell balancing feature that optimizes the charge distribution among the cells, enhancing the battery pack's overall performance and longevity.
• High Accuracy: The device offers high measurement accuracy for cell voltages, which is essential for the precise estimation of the state of charge (SOC) and state of health (SOH) of the battery pack.
• Robust Communication: It supports robust communication interfaces, including a high-speed SPI interface for communication with the main ECU and an isolated daisy-chain interface for module-to-module communication.
• Functional Safety: Designed with functional safety in mind, the L9963T-TR meets the requirements of ISO 26262 up to ASIL-D, the highest automotive safety integrity level.

Applications

The L9963T-TR is ideal for a variety of applications within the automotive sector, including:

• Electric Vehicles (EVs)
• Hybrid Electric Vehicles (HEVs)
• Plug-in Hybrid Electric Vehicles (PHEVs)
• Energy Storage Systems (ESS)

Product Package and Availability

The L9963T-TR is offered in a compact LQFP64 package, which is designed to meet the space constraints of automotive power systems. The product is available in tape and reel packaging, making it suitable for high-volume production.

With its advanced features and robust design, the L9963T-TR BMS from STMicroelectronics is a crucial component for automotive manufacturers looking to enhance the safety and efficiency of their battery-powered vehicles.