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BQ20Z655DBT-R1 Datasheet(PDF) 1 Page - Texas Instruments |
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BQ20Z655DBT-R1 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 25 page bq20z655-R1 www.ti.com SLUSAN9 – AUGUST 2011 SBS 1.1-COMPLIANT GAS GAUGE AND PROTECTION ENABLED WITH IMPEDANCE TRACK ™ Check for Samples: bq20z655-R1 1 FEATURES APPLICATIONS 2 • Next Generation Patented Impedance Track ™ • Medical and Test Equipment Technology Accurately Measures Available • Portable Instrumentation Charge in Li-Ion and Li-Polymer Batteries • Rechargeable Battery Packs – Better Than 1% Error Over the Lifetime of • Industrial Equipment the Battery • Supports the Smart Battery Specification DESCRIPTION SBS V1.1 The bq20z655-R1 SBS-compliant gas gauge and • Flexible Configuration for 2-Series to 4-Series protection IC, incorporating patented Impedance Track ™ technology, is a single IC solution designed Li-Ion and Li-Polymer Cells for battery-pack or in-system installation. The • Powerful 8-Bit RISC CPU with Ultralow Power bq20z655-R1 measures and maintains an accurate Modes record of available charge in Li-ion or Li-polymer • Charge Enable (CE) Affects the Normal batteries using its integrated high-performance Operation on the Charge FET when the Battery analog peripherals. The bq20z655-R1 monitors Is in Charge/Relax Mode capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery • Full Array of Programmable Protection pack which reports the information to the system host Features controller over a serial-communication bus. Together – Voltage, Current, and Temperature with the integrated analog front-end (AFE) • Satisfies JEITA Guidelines short-circuit and overload protection, the bq20z655-R1 maximizes functionality and safety • Added Flexibility to Handle More Complex while minimizing external component count, cost, and Charging Profiles size in smart battery circuits. • Lifetime Data Logging The implemented Impedance Track ™ gas gauging • Drives 3, 4, or 5 Segment Liquid Crystal technology continuously analyzes the battery Display and LED for Battery-Pack Conditions impedance, resulting in superior gas-gauging • Supports SHA-1 Authentication accuracy. This enables remaining capacity to be calculated with discharge rate, temperature, and cell • Complete Battery Protection and Gas Gauge aging all accounted for during each stage of every Solution in One Package cycle with high accuracy. • Available in a 44-Pin TSSOP (DBT) Package Table 1. AVAILABLE OPTIONS PACKAGE(1) TA 44-PIN TSSOP (DBT) Tube 44-PIN TSSOP (DBT) Tape and Reel –40°C to 85°C bq20z655-R1DBT(2) bq20z655-R1DBTR(3) (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. (2) A single tube quantity is 40 units. (3) A single reel quantity is 2000 units. 1 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. 2 Impedance Track is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2011, 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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