BQ26220PW Datasheet

IC型號：
BQ26220PW
PDF描述：
HIGH PERFORMANCE BATTERY MONITOR IC WITH COULOMB COUNTER, VO...
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249.47KB
PDF頁數(shù)：
19頁
芯片廠家：
TI

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bq26220

SLUS521B 鈭?AUGUST 2002 鈭?REVISED FEBRUARY 2004

HIGH PERFORMANCE BATTERY MONITOR IC

WITH COULOMB COUNTER, VOLTAGE AND, TEMPERATURE MEASUREMENT

FEATURES

Multifunction Monitoring Integrated Circuit

Designed to Work With an Intelligent Host

Controller :

鈭?Provides State of Charge Information for

Rechargeable Batteries

鈭?Provides Accurate Battery Voltage and

Temperature Measurement

High Accuracy Coulometric Charge and

Discharge Current Integration With

Automatic Offset Compensation

11-Bit Analog-to-Digital Converter Reports

Battery Voltage With Gain and Offset

Correction

Differential Current Sense

32 Bytes of General Purpose RAM

96 Bytes of Flash (Including 32 Bytes of

Shadow Flash)

8 Bytes of ID ROM

Internal Temperature Sensor Eliminates the

Need for an External Thermistor

Programmable Digital Input/Output Port

High-Accuracy Internal Timebase Eliminates

External Crystal Oscillator

Low Power Consumption:

鈭?Operating : 30

碌A(chǔ)

鈭?Sleep: 1

碌A(chǔ)

鈭?Hibernate: 600 nA

Single-Wire HDQ Serial Interface

Packaging: 8-LEAD TSSOP

PW PACKAGE

(TOP VIEW)

DESCRIPTION

The bq26220 is an advanced battery monitoring

device designed to accurately measure the

charge and discharge currents in rechargeable

battery packs. Intended for pack integration, the

bq26220 contains all the necessary functions to

form the basis of a comprehensive battery

capacity management system in portable

applications such as cellular phones, PDA鈥檚, or

other portable products.

The bq26220 works with the host controller in the

portable system to implement the battery

management system. The host controller is

responsible for interpreting the bq26220 data and

communicating meaningful battery data to the

end-user or power management system.

This device provides 64 bytes of general-purpose

flash memory, 8 bytes of ID ROM and 32 bytes of

flash-backed RAM for data storage. The

nonvolatile memory can maintain formatted

battery monitor information, identification codes,

warranty information, or other critical battery

parameters during periods when the battery is

temporarily shorted or deeply discharged.

RBI

VCC

VSS

HDQ

GPIO

SRP

SRN

BAT

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.

錚?/div>

2002, Texas Instruments Incorporated

www.ti.com

標(biāo)準(zhǔn)包裝
100
類別
集成電路 (IC)
家庭
PMIC - 電池管理
系列
-
功能
電池監(jiān)控器
電池化學(xué)
鋰離子，鎳鎘，鎳氫
電源電壓
2.8 V ~ 4.5 V
工作溫度
-20°C ~ 70°C
安裝類型
表面貼裝
封裝/外殼
8-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝
8-TSSOP
包裝
管件
配用
296-18397-ND - EVALUATION MOD FOR BQ26220-001
其它名稱
296-14004-5

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