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BQ20Z90-V110中文资料
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APPLICATIONS
DESCRIPTION
bq20z90-V110
SLUS743–NOVEMBER2006
SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK(TM)
TECHNOLOGY FOR USE WITH THE bq29330
Improved System Interaction
Patented Impedance Track(TM)Technology oOptional Pulse Charging Feature for Improved Accurately Measures Available Charge in Charge Times
Li-Ion and Li-Polymer Batteries
oDrives 3-, 4-or 5-Segment LED Display for oBetter than 1%Error Over Lifetime of the Remaining Capacity Indication Battery
oSupports SHA-1Authentication oInstant Accuracy –No Learning Cycle oLifetime Data Logging Required
30-Pin TSSOP (DBT)
Automatically adjusts for battery aging, battery self discharge and temperature inefficiencies
oNotebook PCs
oSupports the Smart Battery Specification SBS oMedical and Test Equipment V1.1
Portable Instrumentation
Works With the TI bq29330Analog Front-End (AFE)Protection IC to Provide Complete Pack Electronics Solution
The bq20z90-V110SBS-compliant gas gauge IC, oFull Array of Programmable Voltage, Current, incorporating patented Impedance Track(TM)and Temperature Protection Features technology, is designed for battery-pack or in-system installation. The bq20z90-V110measures and oIntegrated Time Base Removes Need for maintains an accurate record of available charge in External Crystal with Optional Crystal Input Li-ion or Li-polymer batteries using its integrated oElectronics for 7.2-V, 10.8-V or 14.4-V Battery high-performance analog peripherals. The Packs With 50%Fewer External Components bq20z90-V110monitors capacity change, battery oBased on a Powerful Low-Power RISC CPU impedance, open-circuit voltage, and other critical Core With High-Performance Peripherals parameters of the battery pack, and reports the information to the system host controller over a o
Integrated Field Programmable FLASH serial-communication bus. It is designed to work with Memory Eliminates the Need for External the bq29330analog front-end (AFE)protection IC to Configuration Memory
maximize functionality and safety, and minimize o
Measures Charge Flow Using a component count and cost in smart battery circuits. High-Resolution, 16-Bit Integrating The Impedance Track technology continuously Delta-Sigma Converter
analyzes the battery impedance, resulting in superior –Better Than 0.65nVh of Resolution gas-gauging accuracy. This enables remaining capacity to be calculated with discharge rate, –Self-Calibrating
temperature, and cell aging all accounted for during o
Uses 16-Bit Delta-Sigma Converter for each stage of every cycle.
Accurate Voltage and Temperature Measurements
Extensive Data Reporting Options For
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.
IMPEDANCE TRACK is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Copyright (C)2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
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