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BQ20Z80DBTR-V101G4 Datasheet

  • BQ20Z80DBTR-V101G4

  • SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK TEC...

  • 73頁

  • TI

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bq20z80-V101
www.ti.com
SLUS625D 鈥?SEPTEMBER 2004 鈥?REVISED OCTOBER 2005
SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK鈩?/div>
TECHNOLOGY FOR USE WITH THE bq29312A
FEATURES
鈥?/div>
Patented Impedance Track鈩?Technology
Accurately Measures Available Charge in
Li-Ion and Li-Polymer Batteries
Better than 1% Error Over Lifetime of the
Battery
Instant Accuracy 鈥?No Learning Cycle
Required
Supports the Smart Battery Specification SBS
V1.1
Works With the TI bq29312A Analog
Front-End (AFE) Protection IC to Provide
Complete Pack Electronics Solution
Full Array of Programmable Voltage, Current,
and Temperature Protection Features
Integrated Time Base Removes Need for
External Crystal with Optional Crystal Input
Electronics for 7.2-V, 10.8-V or 14.4-V Battery
Packs With Few External Components
Based on a Powerful Low-Power RISC CPU
Core With High-Performance Peripherals
Integrated Field Programmable FLASH
Memory Eliminates the Need for External
Configuration Memory
Measures Charge Flow Using a
High-Resolution, 16-Bit Integrating
Delta-Sigma Converter
鈥?Better Than 0.65-nVh of Resolution
鈥?Self-Calibrating
鈥?Offset Error Less Than 1-碌V
Uses 16-Bit Delta-Sigma Converter for
Accurate Voltage and Temperature
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
Remaining Capacity Indication
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
38-Pin TSSOP (DBT)
APPLICATIONS
Notebook PCs
Medical and Test Equipment
Portable Instrumentation
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
DESCRIPTION
The bq20z80 SBS-compliant gas gauge IC,
incorporating patented Impedance Track technology,
is designed for battery-pack or in-system installation.
The bq20z80 measures and maintains an accurate
record of available charge in Li-ion or Li-polymer
batteries using its integrated high-performance
analog peripherals. The bq20z80 monitors capacity
change, battery impedance, open-circuit voltage, and
other critical parameters of the battery pack, and
reports the information to the system host controller
over a serial-communication bus. It is designed to
work with the bq29312A analog front-end (AFE)
protection IC to maximize functionality and safety,
and minimize component count and cost in smart
battery circuits.
The Impedance Track technology continuously
analyzes the battery impedance, resulting in superior
gas-gauging accuracy. This enables remaining
capacity to be calculated with discharge rate,
temperature, and cell aging all accounted for during
each stage of every cycle.
AVAILABLE OPTIONS
PACKAGE
T
A
鈥?0擄C to
85擄C
38-PIN TSSOP (DBT)
Tube
bq20z80DBT-V101
(1)
38-PIN TSSOP (DBT)
Tape & Reel
bq20z80DBTR-V101
(2)
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
(1)
(2)
A single tube quantity is 50 units.
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2004鈥?005, Texas Instruments Incorporated

BQ20Z80DBTR-V101G4 產(chǎn)品屬性

  • 2,000

  • 集成電路 (IC)

  • PMIC - 電池管理

  • Impedance Track™

  • 燃料，電量檢測計(jì)/監(jiān)控器

  • 鋰離子（Li-Ion）、鋰聚合物（Li-Pol）

  • 3 V ~ 3.6 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 38-TFSOP（0.173"，4.40mm 寬）

  • 38-TSSOP

  • 帶卷 (TR)

  • 296-20821-ND - EVALUATION MODULE FOR BQ20Z80296-19619-ND - BOARD MULTI-CHANNEL TEST & PROG

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