DS2782

PRODUCTION

Stand-Alone Fuel Gauge IC

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

Data Sheet (Rev. 4) Product Selection Table
Part Models
4
1ku List Price
Starting From $3.72
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Part Details

  • 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
DS2782
Stand-Alone Fuel Gauge IC
DS2782 measures voltage, temperature and current, and estimates available capacity for rechargeable lithium ion and lithium-ion polymer batteries | Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Application Note 1

Design Note 1

Technical Articles 3

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Tools & Simulations

Software Development 1

Evaluation Kits

DS2782EVKIT

Evaluation Kit for the DS2782

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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

Product Details

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
DS2782EVKIT
Evaluation Kit for the DS2782

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