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BQ20Z80-V102 Fiches technique(PDF) 1 Page - Texas Instruments |
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BQ20Z80-V102 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 24 page www.ti.com FEATURES APPLICATIONS DESCRIPTION bq20z80-V102 SLUS681A – NOVEMBER 2005 – REVISED MARCH 2006 SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™ TECHNOLOGY FOR USE WITH THE bq29312A • Optional Pulse Charging Feature for Improved Charge Times • Patented Impedance Track™ Technology Accurately Measures Available Charge in • Drives 3-, 4- or 5-Segment LED Display for Li-Ion and Li-Polymer Batteries Remaining Capacity Indication • Better than 1% Error Over Lifetime of the • Supports SHA-1 Authentication Battery • Lifetime Data Logging • Instant Accuracy – No Learning Cycle • 38-Pin TSSOP (DBT) Required • Supports the Smart Battery Specification SBS V1.1 • Notebook PCs • Works With the TI bq29312A Analog • Medical and Test Equipment Front-End (AFE) Protection IC to Provide • Portable Instrumentation Complete Pack Electronics Solution • Full Array of Programmable Voltage, Current, and Temperature Protection Features The bq20z80 SBS-compliant gas gauge IC, • Integrated Time Base Removes Need for incorporating patented Impedance Track™ External Crystal with Optional Crystal Input technology, is designed for battery-pack or in-system installation. The bq20z80 measures and maintains an • Electronics for 7.2-V, 10.8-V or 14.4-V Battery accurate record of available charge in Li-ion or Packs With Few External Components Li-polymer batteries using its integrated • Based on a Powerful Low-Power RISC CPU high-performance analog peripherals. The bq20z80 Core With High-Performance Peripherals monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of • Integrated Field Programmable FLASH the battery pack, and reports the information to the Memory Eliminates the Need for External system host controller over a serial-communication Configuration Memory bus. It is designed to work with the bq29312A analog • Measures Charge Flow Using a front-end (AFE) protection IC to maximize High-Resolution, 16-Bit Integrating functionality and safety, and minimize component Delta-Sigma Converter count and cost in smart battery circuits. – Better Than 0.65 nVh of Resolution The Impedance Track technology continuously – Self-Calibrating analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables remaining – Offset Error Less Than 1 µV capacity to be calculated with discharge rate, • Uses 16-Bit Delta-Sigma Converter for temperature, and cell aging all accounted for during Accurate Voltage and Temperature each stage of every cycle. Measurements • Extensive Data Reporting Options For AVAILABLE OPTIONS Improved System Interaction PACKAGE TA 38-PIN TSSOP (DBT) 38-PIN TSSOP (DBT) Tube Tape & Reel –40 °C to bq20z80DBT-V102(1) bq20z80DBTR-V102(2) 85 °C (1) A single tube quantity is 50 units. (2) A single reel quantity is 2000 units 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 © 2005–2006, 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. |
Numéro de pièce similaire - BQ20Z80-V102 |
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Description similaire - BQ20Z80-V102 |
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