Datasheet > BQ2085-V1P2

BQ2085-V1P2

更新时间： 2024-10-28 12:50:35

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
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描述
SBS-COMPLIANT GAS GAUGE IC FOR USE WITH THE bq29311

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BQ2085-V1P2 数据手册

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bq2085−V1P2

SLUS590 − DECEMBER 2003

SBS-COMPLIANT GAS GAUGE IC

FOR USE WITH THE bq29311

Drives 3-, 4-, or 5-Segment LED Display for

Remaining Capacity Indication

FEATURES

Provides Accurate Measurement of Available

Charge in Li-Ion and Li-Polymer Batteries

38-Pin TSSOP (DBT)

Supports the Smart Battery Specification

(SBS) V1.1

APPLICATIONS

Integrated Time Base Removes Need for

External Crystal

Notebook PCs

Medical and Test Equipment

Portable Instrumentation

Works With the TI bq29311 Analog Front End

(AFE) Protection IC to Provide Complete Pack

Electronics for 10.8-V or 14.4-V Battery Packs

With Few External Components

DESCRIPTION

Based on a Powerful Low-Power RISC CPU

Core With High-Performance Peripherals

The bq2085−V1P2 SBS-compliant gas gauge IC for

battery pack or in-system installation maintains an

accurate record of available charge in Li-ion or Li-polymer

batteries. The bq2085−V1P2 monitors capacity and other

critical parameters of the battery pack and reports the

information to the system host controller over a serial

communication bus. It is designed to work with the

bq29311 analog front-end (AFE) protection IC to maximize

functionality and safety and minimize component count

and cost in smart battery circuits. Using information from

the bq2085−V1P2, the host controller can manage

remaining battery power to extend the system run time as

much as possible.

Integrated Flash Memory Eliminates the Need

for External Configuration EEPROM

Measures Charge Flow Using a High

Resolution 16-Bit Integrating Converter

− Better Than 3-nVh of Resolution

− Self-Calibrating

− Offset Error Less Than 1-µV

Uses 16-Bit Delta Sigma Converter for

Accurate Voltage and Temperature

Measurements

Programmable Cell Modeling for Maximum

Battery Fuel Gauge Accuracy

BLOCK DIAGRAM

Pack+

Charge/Discharge

Power FETs

LDO

Supply Voltage

−

Li-Ion

Cells

bq29311

SMBus

Glueless

Interface

bq2085−V1P2

Level

Translator

−

Cell Inputs

Safety Control

Temp

Sensor

ADC

Voltage

512 Bytes

Config.

FLASH

Integrating

ADC

Coulomb

Counting

Sense

Resistor

(10 mΩ - 20 mΩ)

EPROM

Pack−

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.

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

12 3 4 5 6 7...56

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与BQ2085-V1P2相关器件

型号	品牌	获取价格	描述	数据表
BQ2085-V1P3	TI	获取价格	SBS-COMPLIANT GAS GAUGE IC FOR USE WITH THE bq29311
BQ2085-V1P3DBT	TI	获取价格	暂无描述
BQ2085-V1P3DBTR	TI	获取价格	暂无描述
BQ2092	TI	获取价格	Gas Gauge IC with SMBus-Like Interface
BQ2092SN	TI	获取价格	Gas Gauge IC with SMBus-Like Interface
BQ2092SN-A309TR	TI	获取价格	Multi-Chemistry SBS 0.95 Compliant Gas Gauge With 4 LED Drivers 16-SOIC 0 to 70
BQ2092SN-A311	TI	获取价格	Gas Gauge IC with SMBus-Like Interface
BQ2092SN-A311G4	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, GREEN, SOIC-16
BQ2092SN-A311TR	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, GREEN, SOIC-16
BQ2092SN-A311TRG4	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, GREEN, SOIC-16

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