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BQ20Z80DBTR Datasheet(PDF) 1 Page - Texas Instruments |
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BQ20Z80DBTR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 75 page www.ti.com FEATURES APPLICATIONS DESCRIPTION bq20z80-V101 SLUS625D – SEPTEMBER 2004 – REVISED OCTOBER 2005 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 Charge in • Notebook PCs Li-Ion and Li-Polymer Batteries • Medical and Test Equipment • Better than 1% Error Over Lifetime of the • Portable Instrumentation Battery • Instant Accuracy – No Learning Cycle Required The bq20z80 SBS-compliant gas gauge IC, • Supports the Smart Battery Specification SBS incorporating patented Impedance Track technology, V1.1 is designed for battery-pack or in-system installation. • Works With the TI bq29312A Analog The bq20z80 measures and maintains an accurate Front-End (AFE) Protection IC to Provide record of available charge in Li-ion or Li-polymer Complete Pack Electronics Solution batteries using its integrated high-performance • Full Array of Programmable Voltage, Current, analog peripherals. The bq20z80 monitors capacity change, battery impedance, open-circuit voltage, and and Temperature Protection Features other critical parameters of the battery pack, and • Integrated Time Base Removes Need for reports the information to the system host controller External Crystal with Optional Crystal Input over a serial-communication bus. It is designed to • Electronics for 7.2-V, 10.8-V or 14.4-V Battery work with the bq29312A analog front-end (AFE) Packs With Few External Components protection IC to maximize functionality and safety, and minimize component count and cost in smart • Based on a Powerful Low-Power RISC CPU battery circuits. Core With High-Performance Peripherals • Integrated Field Programmable FLASH The Impedance Track technology continuously analyzes the battery impedance, resulting in superior Memory Eliminates the Need for External gas-gauging accuracy. This enables remaining Configuration Memory capacity to be calculated with discharge rate, • Measures Charge Flow Using a temperature, and cell aging all accounted for during High-Resolution, 16-Bit Integrating each stage of every cycle. Delta-Sigma Converter – Better Than 0.65-nVh of Resolution AVAILABLE OPTIONS – Self-Calibrating PACKAGE TA – Offset Error Less Than 1- µV 38-PIN TSSOP (DBT) 38-PIN TSSOP (DBT) Tube Tape & Reel • Uses 16-Bit Delta-Sigma Converter for –40 °C to Accurate Voltage and Temperature bq20z80DBT-V101(1) bq20z80DBTR-V101(2) 85 °C Measurements • Extensive Data Reporting Options For Improved System Interaction • Optional Pulse Charging Feature for Improved Charge Times • Drives 3-, 4- or 5-Segment LED Display for (1) A single tube quantity is 50 units. Remaining Capacity Indication (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 © 2004–2005, 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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