bq26200

SLUS509A − DECEMBER 2001 − REVISED NOVEMBER 2004

HIGHPERFORMANCE BATTERY MONITOR

WITH COLOUMB COUNTER AND FLASH MEMORY

1

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FEATURES

Work With an Intelligent Host Controller

− Provides State of Charge Information for

Rechargeable Batteries

− Enhances Charge Termination

Discharge Current Integration With Automatic

Offset Compensation

Shadow Flash)

for External Thermistor

External Crystal Oscillator

− Operating : <95

µA

− Sleep: <2

µA

DESCRIPTION

The bq26200 is an advanced battery monitoring IC

designed to accurately measure the charge and

discharge currents in rechargeable battery packs.

Intended for pack integration, the bq26200 contains all

the necessary functions to form the basis of a

comprehensive battery capacity management system

in portable applications such as cellular phones, PDA’s,

or other portable products.

The bq26200 works with the host controller in the

portable system to implement the battery management

system.

The

host

controller

is

responsible

for

interpreting the bq26200 data and communicating

meaningful battery data to the end-user or power

management system.

The bq26200 provides 64 bytes of general-purpose

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

backed RAM for data storage. The non-volatile 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.

1

2

3

4

8

7

6

5

REG

VCC

VSS

HDQ

STAT

SRP

SRN

OSC

PW PACKAGE

(TOP VIEW)

AVAILABLE OPTIONS

MARKING

PACKAGE

MARKING

TSSOP (PW)

−20

°C to 70°C

bq262

bq26200PW

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.

Copyright

 2004, Texas Instruments Incorporated

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.