Datasheet > BQ27441-G1

BQ27441-G1

更新时间： 2024-10-01 12:49:43

品牌	Logo	应用领域
德州仪器 - TI		仪表
页数	文件大小	规格书
22页	991K
描述
System-Side Impedance Track Fuel Gauge

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BQ27441-G1 数据手册

bq27441-G1

www.ti.com

SLUSBH1A –NOVEMBER 2013–REVISED JANUARY 2014

System-Side Impedance Track™ Fuel Gauge

Check for Samples: bq27441-G1

FEATURES

APPLICATIONS

•

Single Series Cell Li-Ion Battery Fuel Gauge

•

Smartphones, Feature Phones and Tablets

Digital Still and Video Cameras

Handheld Terminals

–

Resides on System Board

Supports Embedded or Removable

Batteries

MP3 or Multimedia Players

–

Powered Directly from Battery with

Integrated LDO

DESCRIPTION

The Texas Instruments bq27441-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.

Supports a Low-Value External Sense

Resistor (10mΩ)

•

Easy to Configure Fuel Gauging Based on

Patented Impedance Track™ Technology

–

Reports Remaining Capacity and State of

Charge (SOC) with Smoothing Filter

The bq27441-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).

–

Automatically Adjusts for Battery Aging,

Self-discharge, Temperature, and Rate

Changes

–

Battery State of Health (Aging) Estimation

Battery fuel gauging with the bq27441-G1 requires

connections only to PACK+ (P+) and PACK– (P–) for

a removable battery pack or embedded battery

circuit. The tiny 12-pin 2.5 mm × 4 mm SON package

is ideal for space constrained applications.

•

Microcontroller Peripheral Supports:

–

400-kHz I²C™ Serial Interface

Configurable SOC Interrupt, or

Battery Low Digital Output Warning

–

Internal Temperature Sensor, or

Host Reported Temperature

Small 12-pin 2.5 mm × 4 mm SON Package

TYPICAL APPLICATION

SRN

SCL

I²C

VSYS

Coulomb

Counter

SDA

Bus

SRP

BAT

CPU

Battery Pack

GPOUT

BIN

PACKP

ADC

Li-Ion

Cell

Protection

VDD

VSS

0.47uF

1.8V

LDO

bq27441

PACKN

NFET NFET

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Impedance Track is a trademark of Texas Instruments.

I²C is a trademark of NXP B.V. Corp Netherlands.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...22

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与BQ27441-G1相关器件

型号	品牌	获取价格	描述	数据表
BQ27500	TI	获取价格	System-Side Impedance Track⑩ Fuel Gauge
BQ27500_08	TI	获取价格	System-Side Impedance Track⑩ Fuel Gauge
BQ27500_1	TI	获取价格	System-Side Impedance TracTM Fuel Gauge
BQ27500CSPR-V130	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, BGA12, CSP-12
BQ27500CSPT-V130	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, BGA12, CSP-12
BQ27500DRZR	TI	获取价格	System-Side Impedance Track⑩ Fuel Gauge
BQ27500DRZRG4	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12, 2.50 X 4 MM, GREEN, PLASTIC, SON-12
BQ27500DRZR-V100	TI	获取价格	System-Side Impedance Track⑩ Fuel Gauge
BQ27500DRZR-V100G4	TI	获取价格	System-Side Impedance TracTM Fuel Gauge
BQ27500DRZR-V120	TI	获取价格	System-Side Impedance Track™ Fuel Gauge

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