bq27541-V200 - Texas Instruments

bq27541-V200 Single Cell Li-Ion Battery Fuel Gauge

The Texas Instruments bq27541 Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system microcontroller firmware development for accurate battery fuel gauging. The bq27541 resides within the battery pack or on the system’s main-board with an embedded battery (n.

Features

1
•23 Battery Fuel Gauge for 1-Series Li-Ion Applications
• Microcontroller Peripheral Provides:
  – Accurate Battery Fuel Gauging
  – Internal Temperature Sensor for System Temperature Reporting
  – SHA-1/HMAC Authentication
  – Lifetime Data Logging
  – 96 Bytes of Non-Volatile Scratch Pad FLASH
• Battery Fuel Gauging Based on Patented Impedance Track™ Technology
  – Models Battery Discharge Curve for Accurate Time-To-Empty Predictions
  – Automatically Adjusts for Battery Aging, Battery Self-Discharge, and Temperature/Rate Inefficiencies
  – Low-Value Sense Resistor (5mΩ to 20mΩ)
• HDQ and I2C™ Interface F.