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BQ27000DRKR Datasheet

  • BQ27000DRKR

  • SINGLE CELL Li-Ion AND Li-Pol BATTERY GAS GAUGE IC FOR PORTA...

  • 29頁(yè)

  • TI

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bq27000, bq27200
www.ti.com
SLUS556B 鈥?SEPTEMBER 2004 鈥?REVISED NOVEMBER 2004
SINGLE CELL Li-Ion AND Li-Pol BATTERY GAS GAUGE IC FOR PORTABLE
APPLICATIONS (bqJUNIOR鈩?
FEATURES
鈥?/div>
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HDQ (bq27000) or I
2
C (bq27200)
Communication
Reports Accurate
Time-to-Empty
With
Measured Load and Historical Maximum and
Standby Loads
Reports Temperature, Voltage, and Current
High Accuracy Charge and Discharge Current
Integration with Automatic Offset Calibration
Requires No User Calibration
Programmable Input/Output Port
Internal User EEPROM Configuration Memory
Automatic Capacity Reduction With Age
Stable Oscillator Without External
Components
Dynamic End-of-Discharge Detection Delay to
Allow Use in a High-Dynamic Load
Environment
Automatic Sleep Mode When Communication
Lines are Low
Small 3 mm x 4 mm QFN Package
Five Low-Power Operating Modes
鈥?Active: < 90 碌A(chǔ)
鈥?Sleep: < 2.5 碌A(chǔ)
鈥?Ship: < 2 碌A(chǔ) (bq27000 only)
鈥?Hibernate: < 1.5 碌A(chǔ)
鈥?Data Retention: < 20 nA
APPLICATIONS
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鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
PDA
Smart Phones
MP3 Players
Digital Cameras
Internet Appliances
Handheld Devices
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
DESCRIPTION
The bqJUNIOR series are highly accurate
stand-alone single-cell Li-Ion and Li-Pol battery ca-
pacity monitoring and reporting devices targeted at
space-limited, portable applications. The IC monitors
a voltage drop across a small current sense resistor
connected in series with the battery to determine
charge and discharge activity of the battery. Compen-
sations for battery temperature, self-discharge, and
discharge rate are applied to the capacity
measurments to provide available time-to-empty in-
formation across a wide range of operating con-
ditions. Battery capacity is automatically recalibrated,
or learned, in the course of a discharge cycle from full
to empty. Internal registers include current, capacity,
time-to-empty, state-of-charge, cell temperature and
voltage, status, and more.
The bqJUNIOR can operate directly from single-cell
Li-Ion and Li-Pol batteries and communicates to the
system over a HDQ one-wire or I
2
C serial interface.
鈥?/div>
鈥?/div>
鈥?/div>
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.
bqJUNIOR 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, Texas Instruments Incorporated

BQ27000DRKR 產(chǎn)品屬性

  • 1

  • 集成電路 (IC)

  • PMIC - 電池管理

  • bqJUNIOR™

  • 燃料，電量檢測(cè)計(jì)/監(jiān)控器

  • 鋰離子（Li-Ion）、鋰聚合物（Li-Pol）

  • 2.6 V ~ 4.5 V

  • -20°C ~ 70°C

  • 表面貼裝

  • 10-VFDFN 裸露焊盤

  • 10-VSON 裸露焊盤（3x4）

  • Digi-Reel®

  • 296-20829-ND - TEST SYSTEM FOR BQ27X00296-20828-ND - EVALUATION MODULE FOR BQ27200296-20827-ND - EVALUATION MODULE FOR BQ26150296-18432-ND - EVALUATION MOD INTERFACE BOARD296-18399-ND - EVALUATION MODULE FOR BQ27000

  • 296-17428-6

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