Datasheet Texas Instruments BQ27421YZFT-G1A

ManufacturerTexas Instruments
SeriesBQ27421-G1
Part NumberBQ27421YZFT-G1A
Datasheet Texas Instruments BQ27421YZFT-G1A

System-Side(tm) Fuel Gauge With Integrated Sense Resistor | Battery Gas Gauge 9-DSBGA -40 to 85

Datasheets

bq27421-G1 System-Side Impedance Track Fuel Gauge With Integrated Sense Resistor datasheet
PDF, 1.1 Mb, Revision: E, File published: Jan 6, 2016
Extract from the document

Prices

Status

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityNo

Packaging

Pin99
Package TypeYZFYZF
Industry STD TermDSBGADSBGA
JEDEC CodeS-XBGA-NS-XBGA-N
Package QTY250250
CarrierSMALL T&RSMALL T&R
Device MarkingG1ABQ27421
Width (mm)1.751.75
Length (mm)1.751.75
Pitch (mm).5.5
Max Height (mm).625.625
Mechanical DataDownloadDownload

Parametrics

Battery Capacity(Max)8000 mAh
Battery Capacity(Min)100 mAh
Cell BalancingN/A
Cell ChemistryLi-Ion/Li-Polymer
Communication InterfaceI2C
External Capacity IndicationNone
Gas Gauge AlgorithmIT (High accuracy)
ImplementationSystem
Number of Series CellsSingle Cell
Operating Temperature Range-40 to 85 C
Package GroupDSBGA
Package Size: mm2:W x LSee datasheet (DSBGA) PKG
Pin/Package9DSBGA
RatingCatalog
Special FeaturesIntegrated Sense Resistor

Eco Plan

RoHSCompliant

Design Kits & Evaluation Modules

  • Evaluation Modules & Boards: BQ27421EVM-G1B
    BQ27421EVM-G1B System-Side Battery Fuel (Gas) Gauge Evaluation Module
    Lifecycle Status: Active (Recommended for new designs)
  • Evaluation Modules & Boards: BQ27421EVM-G1A
    BQ27421EVM-G1A System-Side Battery Fuel (Gas) Gauge Evaluation Module Board
    Lifecycle Status: Active (Recommended for new designs)
  • Development Kits: BQ27GDK000EVM
    Gauge Development Kit (GDK)
    Lifecycle Status: Active (Recommended for new designs)
  • Evaluation Modules & Boards: EV2400
    USB-Based PC Interface Board for Battery Fuel (Gas) Gauge Evaluation Module
    Lifecycle Status: Active (Recommended for new designs)
  • Evaluation Modules & Boards: EV2300
    USB-Based PC Interface Board for Battery Fuel (Gas) Gauge Evaluation
    Lifecycle Status: Active (Recommended for new designs)

Application Notes

  • Single Cell Gas Gauge Circuit Design
    PDF, 154 Kb, File published: Feb 22, 2008
  • Verification and Accuracy Test Methods of Gas Gauges
    PDF, 51 Kb, File published: Jun 5, 2013
  • Theory and Implementation of Impedance Track Battery Fuel-Gauging Algorithm
    PDF, 608 Kb, File published: Jan 31, 2008
    This application report outlines the theory of Impedance Trackв„ў (IT) technology used in the bq2750x series of fuel gauge ICs for single-cell Li-ion applications (e.g., smart phones, media players, and PDAs). The implementation of the IT algorithm in the bq2750x family is reviewed, and the settings of data flash constants associated with the fuel-gauging algorithm is described in detail.
  • Single Cell Impedance Track Printed-Circuit Board Layout
    PDF, 403 Kb, File published: Feb 22, 2008
    bq20z70/90 Printed-Circuit Board Layout Guide
  • Going to Production With the bq274xx Family of Gas Gauges
    PDF, 1.2 Mb, File published: Jun 27, 2011
    This application report presents a strategy for high-speed, economical calibration and production programming of the bq274xx single-cell gas gauge. Flowchart examples are provided, along with step-by-step instructions for preparing a calibration data set that is required when creating the Golden Data Flash Image (DFI) that is programmed into all bq274xx devices on the production line.
  • Low-Power, Long Runtime Fuel Gauging Scheme
    PDF, 52 Kb, File published: Oct 11, 2013

Model Line

Manufacturer's Classification

  • Semiconductors > Power Management > Battery Management Products > Battery Fuel Gauge

Other Names:

BQ27421YZFTG1A, BQ27421YZFT G1A

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