bq27545-G1 Single-Cell Li-Ion Battery Fuel Gauge For Battery Pack Integration

1 Features

• Battery Fuel Gauge for 1-Series (1sXp) Li-Ion Applications up to 14500-mAh Capacity
• Microcontroller Peripheral Provides:
  • Internal or External Temperature Sensor for Battery Temperature Reporting
  • SHA-1/HMAC Authentication
  • Lifetime Data Logging
  • 64 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 and Rate Inefficiencies
  • Low-Value Sense Resistor (5 mΩ to 20 mΩ)
• Advanced Fuel Gauging Features
  • Internal Short Detection
  • Tab Disconnection Detection
• HDQ and I2C™ Interface Formats for Communication with Host System
• Small 15-Ball Nano-Free™ (DSBGA) Packaging

2 Applications

• Smartphones
• Tablets
• Digital Still and Video Cameras
• Handheld Terminals
• MP3 or Multimedia Players