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BQ20Z70PW-V150 |BQ20Z70PWV150TIN/a25avaiSBS 1.1-Compliant Gas Gauge Enabled with Impedance Track Technology for use with the bq29330 20-TSSOP -40 to 85


BQ20Z70PW-V150 ,SBS 1.1-Compliant Gas Gauge Enabled with Impedance Track Technology for use with the bq29330 20-TSSOP -40 to 85SLUS686B–NOVEMBER 2005–REVISED JULY 2007TERMINAL FUNCTIONSTERMINAL(1)I/O DESCRIPTIONNO. NAME1 XALER ..
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BQ20Z70PW-V150
SBS 1.1-Compliant Gas Gauge Enabled with Impedance Track Technology for use with the bq29330 20-TSSOP -40 to 85
www.ti.com
FEATURES APPLICATIONS
DESCRIPTION
bq20z70
SLUS686B–NOVEMBER 2005–REVISED JULY 2007
SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™
TECHNOLOGY FOR USE WITH THE bq29330
Notebook PCs Next Generation Patented Impedance Track™
Technology accurately Measures Available
Medical and Test Equipment
Chargein Li-Ion and Li-Polymer Batteries
Portable Instrumentation Better than 1% Error Over Lifetimeof the
Battery
Instant Accuracy– No Learning Cycle The bq20z70 SBS-compliant gas gauge IC,
Required
incorporating patented Impedance Track™
technology,is designed for battery-packor in-system• Supports the Smart Battery Specification SBS installation. The bq20z70 measures and maintainsV1.1 an accurate recordof available chargein Li-ionor• Powerful 8-Bit RISC CPU With Ultra-Low Li-polymer batteries using its integratedPower Modes high-performance analog peripherals. The bq20z70
monitors capacity change, battery impedance,• Works With theTI bq29330 Analog Front-End
open-circuit voltage, and other critical parametersof(AFE) ProtectionICto Provide Complete Pack
the battery pack, and reports the informationto theElectronics Solution system host controller overa serial-communication• Full Arrayof Programmable Protection bus.Itis designedto work with the bq29330 analogFeatures front-end (AFE) protection IC to maximize Voltage, Current and Temperature functionality and safety, and minimize component
count and costin smart battery circuits.• Fully Integrated High Accurate Clock Flexible Configuration for2to4 Series Li-Ion The Impedance Track technology continuously
analyzes the battery impedance, resultingin superiorand Li-Polymer Cells
gas-gauging accuracy. This enables remaining• Integrated Field Programmable FLASH capacity to be calculated with discharge rate,Memory Eliminates the Need for External temperature, and cell agingall accounted for duringConfiguration Memory each stageof every cycle.• Smart Battery Charger Control Feature
AVAILABLE OPTIONS
Two 16-Bit Delta-Sigma Converter
PACKAGE(1)– Accurate Voltage and TemperatureMeasurements 20-PIN TSSOP (PW) 20-PIN TSSOP (PW)
Tube Tape and Reel– Integrating Coloumb Counter for Charge

–40°CtoFlow bq20z70PW(2) bq20z70PWR(3)
85°C– Better Than 0.65 nVhof Resolution
(1) Forthe most current package and ordering information, see– Self-Calibrating the Package Option Addendumatthe endof this document, seetheTI websiteat www.ti.com.• Supports SHA-1 Authentication (2)A single tube quantityis50 units.• 20-Pin TSSOP (PW) (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
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