• Battery Fuel Gauge and Charger Controller for 1-Series Li-Ion Applications
• Resides on System Main Board
• Battery Fuel Gauge Based on Patented Impedance Track™ Technology
  • Models the 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 (5 mΩ to 20 mΩ)
• Battery Charger Controller with Customizable Charge Profiles
  • Configurable Charge Voltage and Current based on Temperature
  • Optional State of Health (SoH) and Multi-level Based charge profiles
• Host Free Autonomous Battery Management System
  • Reduced Software Overhead Allows for Easy Portability Across Platforms and Shorter OEM Design Cycles
  • Higher Safety and Security
• Run Time Improvements
  • Longer Battery Runtime Leveraging Impedance Track Technology
  • Tighter Accuracy Controls for Charger Termination
  • Improved Recharged Thresholds
• Intelligent Charging - Customized and Adaptive Charging Profiles
  • Charger Control Based on SoH
  • Temperature Level Charging (TLC)
• Battery Charger Controller for bq2416x Single Cell Switchmode Battery Charger
  • Stand-Alone Charging Solution
• 400-kHz I2C™ Interface for Connection to System Microcontroller Port
• In a 15-Pin NanoFree™ (CSP) Packaging

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

The Texas Instruments bq27530-G1 system-side Li-Ion Battery Management Unit is a microcontroller peripheral that provides Impedance Track™ fuel gauging and charging control for single-cell Li-Ion battery packs. The device requires little system microcontroller firmware development. Together with bq2416x Single Cell Switchmode Charger, the bq27530-G1 manages an embedded battery (non-removable) or a removable battery pack.

The bq27530-G1 uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min), battery voltage (mV), temperature (°C) and state of health (%).