L9963E - STMicroelectronics

L9963E Automotive Multicell battery monitor

The L9963E is a Li-ion battery monitoring and protecting chip for high-reliability automotive applications and energy storage systems. Up to 14 stacked battery cells can be monitored to meet the requirements of 48 V and higher voltage systems. Each cell voltage is measured with high accuracy, as well as the current for the on-chip coulomb counting. The devic.

Features

TQFP 10x10 64L exposed pad down Product status link L9963E Product summary Order code Package Packing L9963E L9963E-TR TQFP64EP Tray Tape and Reel Product label
• AEC-Q100 qualified
• Measures 4 to 14 cells in series, with 0 μs desynchronization delay between samples. Supports also busbar connection without altering cell results
• Coulomb counter supporting pack overcurrent detection in both ignition on and off states. Fully synchronized current and voltage samples
• 16-bit voltage ADC with maximum error of ±2 mV in the [0.5
  – 4.3] V range, after soldering, in [-40; +105] °C Tj range.