器件名称: bq27421-G1
功能描述: System-Side Impedance Track™ Fuel Gauge With Integrated Sense Resistor
文件大小: 953.83KB 共20页
简 介:bq27421-G1
www.ti.com SLUSB85 – MAY 2013
System-Side Impedance Track Fuel Gauge With Integrated Sense Resistor
Check for Samples: bq27421-G1
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FEATURES
Single Series Cell Li-Ion Battery Fuel Gauge – Resides on System Board – Supports Embedded or Removable Batteries – Powered Directly from Battery with Integrated LDO – Low-value Integrated Sense Resistor (7 m Typical) Easy to Configure Fuel Gauging Based on Patented Impedance Track Technology – Reports Remaining Capacity and State of Charge (SOC) with Smoothing Filter – Automatically Adjusts for Battery Aging, Self-discharge, Temperature, and Rate Changes – Battery State of Health (aging) Estimation Microcontroller Peripheral Supports: – 400-kHz I2C Serial Interface – Configurable SOC Interrupt, or Battery Low Digital Output Warning – Internal Temperature Sensor, or Host Reported Temperature 9-pin 1,62 mm × 1,58 mm × 0,5 mm Pitch CSP Package
APPLICATIONS
Smartphones, Feature phones and Tablets Digital Still and Video Cameras Handheld Terminals MP3 or Multimedia Players
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DESCRIPTION
The Texas Instruments bq27421-G1 is an easy to configure microcontroller peripheral that provides system-side fuel gauging for single-cell Li-Ion batteries. The device requires minimal user configuration and system microcontroller firmware development. The bq27421-G1 uses the patented Impedance Track algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV……
