Do you know about NXP battery cell controller?

What is an NXP battery cell controller? What does it do? NXP Semiconductors (Nasdaq: NXPI), the world's largest supplier of automotive semiconductor solutions, announced the launch of a new battery cell controller suitable for various automotive battery management systems device product portfolio. The product portfolio is designed to deliver industry-leading measurement accuracy and flexible embedded functional safety mechanisms, while its benefits also enhance NXP's platform model for power control.

The new battery cell controller will be combined with NXP's full range of world-class automotive microcontrollers (MCUs), power management system basis chips (SBCs) and communication transceivers to provide easy-to-use high-capacity energy storage in modern electric vehicles. reference design platform. These platforms are designed to help customers deliver next-generation hybrid and electric vehicles faster and with lower development risk.

In electric vehicles, the electrical energy needed to power the main traction motor is stored in high-performance batteries composed of many individual, lithium-ion cells. Accurately measuring and managing these cells is critical to the safety and reliability of the entire battery pack. The battery management system monitors the vital state of charge, health and battery temperature of each unit while accurately measuring the current flowing into and out of the battery pack.

NXP's new battery controller IC works with NXP's full range of functional safety system base chips and microcontrollers, making it easy to implement reliable and secure systems with its industry-leading accuracy, reliable communications and advanced functional safety up to ASIL-D. Extended battery management solution.

New battery cell controllers (MC33771B and MC33772B) advance measurement capabilities and functional integration to a higher level of technology.

It can complete the conversion of the unit measurement results of a 96-cell high-voltage battery in less than 546 us, and transmit the data to the battery pack controller within 4.1ms. The typical accuracy of the entire voltage and temperature after welding is + /-0.8mV.

Using unique synchronous current detection, it supports high-precision battery cell impedance calculation for battery state of health (SOH) monitoring.

Each unit integrates 0.8 Ohm MOSFETs and a dedicated timer to balance all units simultaneously for efficient charging.

Provides embedded functional safety mechanisms and diagnostics to effectively support the highest functional safety goals.

Dr. Michal Bruna, Manager Electric Vehicle PEP Electronics and Testing at the Volkswagen R&D Competence Center, said: “Volkswagen is working hard to address increasingly stringent performance and functional safety requirements in next-generation battery management systems. We have carried out an extended evaluation and approval of future systems. Choosing NXP's MC33771B battery cell controller. We believe that NXP's leadership and innovation capabilities can help us achieve the important goal of a green and safe society."

More than ten Tier 1 automotive customers around the world are already using NXP battery management solutions in production, and NXP is currently developing them with multiple automakers. Implementations cover a variety of applications, including economical 14V battery management, highly integrated 48V systems for mild hybrid vehicles, and up to 96 battery cells for hybrid and pure electric vehicles from 200 V to 800 V. High voltage battery pack and junction box. The above is the analysis of NXP battery cell controller, I hope it can help you.