DS2782
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DS2782

Stand-Alone Fuel Gauge IC

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2-wire stand-alone fuel-gauge IC calculates remaining battery capacity and simplifies software development

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Info: : PRODUCTION tooltip
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Part Models 4
1ku List Price Starting From $3.72
Features
  • Precision Voltage, Temperature, and Current Measurement System
  • Accurate Stable Internal Time Base
  • Absolute and Relative Capacity Estimated from Coulomb Count, Discharge Rate, Temperature and Battery Cell Characteristics
  • Accurate Warning of Low Battery Conditions
  • Automatic Backup of Coulomb Count and Age Estimation to Nonvolatile (NV) EEPROM
  • Gain and Tempco Calibration Allows the Use of Low-Cost Sense Resistors
  • 24-Byte User EEPROM or 16-Byte User EEPROM and Unique 64-Bit ID
  • Industry 2-Wire Interface with Programmable Slave Address
  • Tiny 8-Pin TSSOP and 10-TDFN Packages Embed Easily in Thin Prismatic Cell Packs
Additional Details
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The DS2782 remains in production, however, for new projects, we recommend ModelGauge m5 MAX17201 fuel gauge.

The DS2782 measures voltage, temperature and current, and estimates available capacity for rechargeable lithium ion and lithium-ion polymer batteries. Cell characteristics and application parameters used in the calculations are stored in on-chip EEPROM. The available capacity registers report a conservative estimate of the amount of charge that can be removed given the current temperature, discharge rate, stored charge and application parameters. Capacity estimation reported in mAh remaining and percentage of full.

Applications

  • 3G Multimedia Wireless Handsets
  • Digital Still Cameras
  • Handheld PC Data Terminals
  • Subnotebook Computers
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file View Data Sheet (Rev.4)
Documentation View All Documentation
Part Models 4
1ku List Price Starting From $3.72
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DS2782

Documentation

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Data Sheet

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UPDATED 06/22/2009
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DS2782: Stand-Alone Fuel Gauge IC Data Sheet (Rev.4)

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UPDATED 01/01/1900
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DS2782: 独立式电量计IC Data Sheet

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Reliability Data

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UPDATED 01/12/2023
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DS2782 Reliability Data redirect icon

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Design Note

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UPDATED 09/11/2007
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Calibrating RSGAIN for the DS278x Family of Fuel Gauges redirect icon

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UPDATED 01/25/2008
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DS278x系列电量计中的RSGAIN校准 redirect icon

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UPDATED 02/20/2008
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DS278x残量ゲージICファミリのRSGAINの較正 redirect icon

Application Note

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UPDATED 03/31/2005
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Documentation

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS2782E+ Thin Shrink Small-Outline Package external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
DS2782E+T&R Thin Shrink Small-Outline Package external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
DS2782G+ Thin Dual Flatpack No Leads external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
DS2782G+T&R Thin Dual Flatpack No Leads external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

DS2782EVKIT

Evaluation Kit for the DS2782

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DS2782EVKIT

Evaluation Kit for the DS2782

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DS2782EVKIT
Evaluation Kit for the DS2782

Features and Benefits

  • Demonstrates the capabilities of the DS2782 Standalone Fuel Gauge, including:
    • Estimation of available capacity for Li+ cells
    • Voltage measurement
    • Current measurement
    • Current accumulation
    • Temperature measurement
    • Information storage
    • Identification
  • Interfaces to the USB port of a PC running Windows® XP or older operating system
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Product Detail

The DS2782 evaluation kit (EV kit) makes performance evaluation, software development, and prototyping with the DS2782 Standalone Fuel Gauge easy. The evaluation board interfaces to a PC through a DS9123O USB Adapter and RJ-11 cable connection.

The DS2782 EV kit evaluation software gives the user complete control of all functions of the DS2782. Separate control tabs allow the user access to all EEPROM and RAM memory locations, all control registers, and real-time updates of all monitored parameters. The software also incorporates a data-logging feature to monitor a cell over time.

The evaluation board circuit is designed to provide the DS2782 with accurate parameter measurements. Kit demonstration boards will vary as they are improved upon over time. For information on the demonstration board circuits refer to the individual board datasheets located online at www.maximintegrated.com.

Applications

  • 3G Multimedia Wireless Handsets
  • Digital Still Cameras
  • Handheld PC Data Terminals
  • Subnotebook Computers

Evaluation Kits1

DS2782EVKIT

Evaluation Kit for the DS2782

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