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BQ20Z80-V102 Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce BQ20Z80-V102
Description  SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK-TM TECHNOLOGY FOR USE WITH THE bq29312A
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

BQ20Z80-V102 Fiches technique(HTML) 1 Page - Texas Instruments

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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.


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