bq27741-G1
Overview
The Texas Instruments bq27741-G1 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.
- 1 Battery Fuel Gauge and Protector for 1-Series LiIon Applications
- Microcontroller Peripheral Provides: - Accurate Battery Fuel Gauging Supports up to 14,500 mAh - External and Internal Temperature Sensors for Battery Temperature Reporting - Precision 16-Bit High-Side Coulomb Counter with High-Side Low-Value Sense Resistor (5 mΩ to 20 mΩ) - Lifetime and Current Data Logging - 64 Bytes of Non-Volatile Scratch Pad Flash - SHA-1/HMAC Authentication
- Battery Fuel Gauging Based on Patented Impedance Track™ Technology - Models Battery Discharge Curve for Accurate Time-To-Empty Predictions - Automatically Adjusts for Aging, SelfDischarge, and Temperature- and RateInduced Effects on Battery
- Advanced Fuel Gauging Features - Internal Short Detection - Tab Disconnection Detection
- Safety and Protection: - Over- and Undervoltage Protection with LowPower Mode - Overcharging and Discharging Current Protection - Overtemperature Protection - Short-Circuit Protection - Low-Voltage Notification - Voltage Doubler to Support High-Side N-Channel FET Protection
- HDQ and I2C Interface Formats for Communication with Host System
- Small 15-Ball NanoFree™ (BGA) Packaging
