Datasheet Texas Instruments BQ27350PWR — Ficha de datos

bq27350
www.ti.com SLUS754B – MARCH 2007 – REVISED DECEMBER 2009 Single Cell Li-Ion/Li-Polymer Battery Manager
With Impedance Track Fuel Gauge Technology
Check for Samples: bq27350 1 INTRODUCTION
1.1 FEATURES Comprehensive Battery Fuel Gauge for Single
Cell and 1-Series Li-Ion/Li-Polymer
Applications Secure Battery Authentication Using
SHA-1/HMAC Encryption Calculates and Reports
– Remaining Battery Capacity
– Battery Voltage and Temperature
– Charge and Discharge Current
– Four Time-to-Empty Predictions Battery Fuel Gauge Based on Patented
Impedance Trackв„ў 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 (10mΩ or Less) 96-Bytes Non-Volatile Scratch Pad Data
Memory I2C Communications Interface to the Host 20-Pin TSSOP Package
12 1.2 APPLICATIONS Smartphones
PDAs
Digital Cameras …