High‑precision automotive BMS front‑end for Li‑ion battery modules

Advanced monitoring for up to 14 cells in series

L9963F Automotive Multicell battery monitoring and balancing IC

Precision power management to meet the challenges of safety-compliant BMS architectures

Precision power management to meet the challenges of safety-compliant BMS architectures

The L9963F is designed to address the challenges of modern Li-ion battery monitoring and protection in EV, HEV, and 48 V platforms. With accurate measurements, integrated protections, and robust diagnostics, it supports safety-compliant BMS architectures built for demanding automotive applications.

 

Automotive 48 V systems

Small electric vehicles

Hybrid electric vehicles

Uninterruptable power supplies (UPS)

Energy storage systems

Humanoid robots

What L9963F offers?

Integrated safety

  • High integration: measurement and protection in a single chip.
  • ASIL-D compliant: built for ISO 26262 safety standard.
  • Fault awareness: real-time hardware and wiring diagnostics.

Performance intelligence

  • Precision sensing: ultra-accurate voltage and current data
  • Smart estimation: advanced logic for SoC and SoH tracking.
  • Internal analysis: automated hardware self-checks for ADCs and comparators
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Scalable versatility

  • Stackable design: daisy-chain support for high-voltage packs.
  • Platform ready: supports from 48 V to full-electric architectures.
  • Custom control: SPI-programmable for diverse cell chemistries.
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How to test and prototype with L9963F

Kick-start your BMS design with a complete hardware and software ecosystem built around L9963F. From evaluation boards to pre-loaded software and companion devices, everything is ready to help you move from concept to prototype quickly.

 

AEK-POW-BMS63EM

AEK-POW-BMSCC

L9963T

Tool type

BMS module

Compact BMS module

Isolated transceiver

Main function

Ready-to-use module for rapid prototyping.

Optimized form-factor for battery pack mounting.

SPI-to-Isolated-SPI communication bridge.

Key strength

Safety: integrated protection and scalability.

Density: tiny footprint (70x45mm) for 31 nodes.

Robust: converts 4-wire SPI to 2-wire isolated.

セットアップ

Complete HW solution

Plug-and-Play (dual conn)

Interface bridge

Find out more