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BQ2083-V1P2 Datasheet(PDF) 1 Page - Texas Instruments

Part No. BQ2083-V1P2
Description  SBS-COMPLIANT GAS GAUGE IC FOR USE WITH THE bp29311
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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BQ2083-V1P2 Datasheet(HTML) 1 Page - Texas Instruments

 
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bq2083-V1P2
SLUS573 − JULY 2003
SBSCOMPLIANT GAS GAUGE IC
FOR USE WITH THE bq29311
FEATURES
D Provides Accurate Measurement of Available
Charge in Li-Ion and Li-Polymer Batteries
D Supports the Smart Battery Specification
(SBS) V1.1
D 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
D Based on a Powerful Low-Power RISC CPU
Core With High-Performance Peripherals
D Integrated Flash Memory Eliminates the Need
for External Configuration EEPROM
D 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
D Uses 16-Bit Delta Sigma Converter for
Accurate Voltage and Temperature
Measurements
D Programmable Cell Modeling for Maximum
Battery Fuel Gauge Accuracy
D Drives 3-, 4-, or 5-Segment LED Display for
Remaining Capacity Indication
D 38-Pin TSSOP (DBT)
APPLICATIONS
D Notebook PCs
D Medical and Test Equipment
D Portable Instrumentation
DESCRIPTION
The bq2083−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 bq2083−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 bq2083−V1P2, the host controller can manage
remaining battery power to extend the system run time as
much as possible.
BLOCK DIAGRAM
ADC
Voltage
Sense
Resistor
(10 m
Ω - 20 mΩ)
Pack−
Integrating
ADC
Coulomb
Counting
Temp
Sensor
512 Bytes
Config.
Flash
EPROM
bq2083−V1P2
Level
Translator
bq29311
LDO
Glueless
Interface
Cell Inputs
Safety Control
SMBus
Pack+
Supply Voltage
Li-Ion
Cells
+
Charge/Discharge
Power FETs
+
+
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.
www.ti.com
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
 2003, Texas Instruments Incorporated


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