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BQ2084DBT-V140 Datasheet(PDF) 2 Page - Texas Instruments

Part No. BQ2084DBT-V140
Description  SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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BQ2084DBT-V140 Datasheet(HTML) 2 Page - Texas Instruments

 
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DESCRIPTION (CONTINUED)
ABSOLUTE MAXIMUM RATINGS
bq2084-V140
SLUS664B – JULY 2005 – REVISED AUGUST 2006
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
The bq2084-V140 contains 1k bytes of internal data flash memory, which store configuration information. The
information includes nominal capacity and voltage, self-discharge rate, rate compensation factors, and other
programmable cell-modeling factors used to accurately adjust remaining capacity for use-conditions based on
time, rate, and temperature. The bq2084-V140 also automatically calibrates or learns the true battery capacity in
the course of a discharge cycle from programmable near full to near empty levels.
The bq29312 analog front-end (AFE) protection IC is used to maximize functionality and safety and minimize
component count and cost in smart battery circuits. The bq29312 AFE protection IC provides power to the
bq2084-V140 from a 2-, 3-, or 4-series Li-ion cell stack, eliminating the need for an external regulator circuit.
ORDERING INFORMATION
PACKAGE(1)
TA
38-PIN TSSOP (DBT)(2)
36-PIN QFN (RTT)(3)
–20
°C to 85°C
bq2084DBT-V140
bq2084RTT-V140
(1)
For the most current package and ordering information, see the Package Option Addendum at the end
of this document, or see the TI Web site at www.ti.com.
(2)
The bq2084DBT-V140 is available in tape and reel. Add an R suffix to the device type (e.g.,
bq2084DBTR-V140) to order tape and reel version.
(3)
The bq2084RTT-V140 is available in tape and reel only. Add an T suffix to the device type (e.g.,
bq2084RTTT-V140) to order mini tape and reel version.
over operating free-air temperature range unless otherwise noted(1)
UNIT
Supply voltage range, VDD relative to VSS (2)
–0.3 V to 4.1 V
Open-drain I/O pins, V(IOD) relative to VSS(2)
–0.3 V to 6 V
Input voltage range to all other pins, VI relative to VSs(2)
–0.3 V to VDD + 0.3 V
TA
Operating free-air temperature range
–20
°C to 85°C
Tstg
Storage temperature range
–65
°C to 150°C
(1)
Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
VSS refers to the common node of V(SSA), V(SSD), and V(SSP).
2
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