BQ20Z80DBT ,SBS 1.1-Compliant Gas Gauge Enabled with Impedance Track(TM) Technology for Use With the bq29312SLUS782–JULY 2007These devices have limited built-in ESD protection. The leads should be shorted to ..
BQ20Z80DBTR , SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™ TECHNOLOGY FOR USE WITH THE bq29312A
BQ20Z80DBTR-V102 ,SBS 1.1-Compliant Gas Gauge Enabled w/Impedance Track Tech 38-TSSOP -40 to 85SLUS681B–NOVEMBER 2005–REVISED JANUARY 2007TERMINAL FUNCTIONSTERMINAL(1)I/O DESCRIPTIONNO. NAME1 VI ..
BQ20Z90DBT ,SBS 1.1 Compliant Gas Gauge Enabled w/Impedance Track Tech For bq29330 30-TSSOP -40 to 85SLUS662A–DECEMBER 2005–REVISED JUNE 2006TERMINAL FUNCTIONSTERMINAL(1)I/O DESCRIPTIONNO. NAME1 NC – ..
BQ20Z90DBTR-V150 ,SBS v1.1 Compliant Gas Gauge for Use With the bq29330 30-TSSOP -40 to 85Featuressystem host controller over a serial-communication• Integrated Time Base Removes Need forbu ..
BQ20Z90DBT-V110 ,SBS 1.1 Compliant Gas Gauge Enabled w/Impedance Track Tech 30-TSSOP -40 to 125Featurestechnology, is designed for battery-pack or in-systeminstallation. The bq20z90-V110 measure ..
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BQ20Z80DBT
SBS 1.1-Compliant Gas Gauge Enabled with Impedance Track(TM) Technology for Use With the bq29312
www.ti.com
FEATURES
APPLICATIONS
DESCRIPTION
bq20z80
bq20z80A
SLUS782–JULY 2007
SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™
TECHNOLOGY FOR USE WITH THE bq29312A 38-Pin TSSOP (DBT) Patented Impedance Track™ Technology
Accurately Measures Available Chargein Notebook PCsLi-Ion and Li-Polymer Batteries Medical and Test Equipment•
Better than 1% Error Over Lifetimeof the Portable InstrumentationBattery Instant Accuracy– No Learning Cycle
RequiredThe bq20z80 SBS-compliant gas gauge IC,•
Supports the Smart Battery Specification SBSincorporating patented Impedance Track™
V1.1technology,is designed for battery-packor in-system•
Works With theTI bq29312A Analog installation. The bq20z80 measures and maintains
Front-End (AFE) ProtectionICto Provide an accurate recordof available chargein Li-ionor
Complete Pack Electronics Solution Li-polymer batteries using its integrated•
Full Arrayof Programmable Voltage, Current, high-performance analog peripherals. The bq20z80
monitors capacity change, battery impedance,
and Temperature Protection Featuresopen-circuit voltage, and other critical parametersof•
Integrated Time Base Removes Need for the battery pack, and reports the informationto the
External Crystal with Optional Crystal Input system host controller overa serial-communication•
Electronics for 7.2-V, 10.8-Vor 14.4-V Battery bus.Itis designedto work with the bq29312A analog
Packs With Few External Components front-end (AFE) protection IC to maximize
functionality and safety, and minimize component•
Based ona Powerful Low-Power RISC CPUcount and costin smart battery circuits.
Core With High-Performance Peripherals Integrated Field Programmable FLASH The Impedance Track technology continuously
analyzes the battery impedance, resultingin superior
Memory Eliminates the Need for Externalgas-gauging accuracy. This enables remaining
Configuration Memory capacity to be calculated with discharge rate,•
Measures Charge Flow Usinga temperature, and cell agingall accounted for during
High-Resolution, 16-Bit Integrating each stageof every cycle.
Delta-Sigma Converter Better Than 0.65 nVhof Resolution AVAILABLE OPTIONS Self-Calibrating PACKAGE(1)– Offset Error Less Than1 μV 38-PIN TSSOP (DBT) 38-PIN TSSOP (DBT)
Tube Tape and Reel•
Uses 16-Bit Delta-Sigma Converter for–40°Cto
Accurate Voltage and Temperature bq20z80ADBT(2) bq20z80ADBTR(3)
85°C
Measurements –40°Cto bq20z80DBT(2) bq20z80DBTR(3)•
Extensive Data Reporting Options For 85°C
Improved System Interaction Optional Pulse Charging Feature for Improved
Charge Times Drives3-,4-or 5-Segment LED Display for (1) Forthe most current package and ordering information, see
Remaining Capacity Indication the Package Option Addendumatthe endof this document, seetheTI websiteat www.ti.com.•
Supports SHA-1 Authentication(2)A single tube quantityis50 units.•
Lifetime Data Logging (3)A single reel quantityis 2000 units
Pleasebe aware thatan important notice concerning availability, standard warranty, and usein critical applicationsof Texas
Not Recommended For New Designs
