DS2756
Info: : PRODUCTION
searchIcon
cartIcon

DS2756

High-Accuracy Battery Fuel Gauge with Programmable Suspend Mode

Show More showmore-icon

Provides Key Hardware Components Required to Accurately Estimate Remaining Capacity by Integrating Low-Power Precision Measurements of Temperature, Voltage, Current, Current Accumulation, and Nonvolatile Data Storage

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $3.22
Features
  • Programmable Suspend Mode
  • Accurate Current Accumulation
    • 2% ±4µV over ±64mV Input Range
    • 2% ±200µA over ±3.2A with 20mΩ Sense
  • Current Measurement
    • 9-Bit Snapshot Measurement
    • 12-Bit Average Updated Every 88ms
    • 15-Bit Average Updated Every 2.8s
  • Voltage Measurement
    • 9-Bit Snapshot Measurement
    • 10-Bit Average Updated Every 4ms
  • Temperature Measurement
    • 10-Bit with 0.125°C Resolution
  • Snapshot mode allows instantaneous power measurement
  • Host Alerted When Accumulated Current or Temperature Exceeds Programmable Limits
  • 96 Bytes of Lockable EEPROM
  • 8 Bytes of General-Purpose SRAM
  • Dallas 1-Wire Interface with Unique 64-Bit Address and Standard or Overdrive Timing
  • 3mm Dimension of 8-Pin TSSOP Package Allows Mounting on Side of Thin Prismatic Li+ and Li+/Polymer Cells
Additional Details
show more Icon

The DS2756 remains in production, however, for new projects, we recommend ModelGauge m5 MAX17201 fuel gauge.

The DS2756 high-precision battery fuel gauge is a data-acquisition and information-storage device tailored for cost-sensitive and space-constrained 1-cell Li+/polymer battery-pack applications. The DS2756 provides the key hardware components required to accurately estimate remaining capacity by integrating low-power, precision measurements of temperature, voltage, current, and current accumulation, as well as nonvolatile (NV) data storage, into the small footprint of a 3.0mm x 4.4mm 8-pin TSSOP package.

Through its 1-Wire® interface, the DS2756 gives the host system read/write access to status and control registers, instrumentation registers, and general-purpose data storage. Each device has a unique factory-programmed 64-bit net address that allows it to be individually addressed by the host system, supporting multibattery operation.

Part Models 2
1ku List Price Starting From $3.22

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS2756E+
  • HTML
  • HTML
DS2756E+T&R
  • HTML
  • HTML
Software and Part Ecosystem

Software and Part Ecosystem

Evaluation Kit

Evaluation Kits 1

DS2756EVKIT

Evaluation Kit for the DS2756

zoom

DS2756EVKIT

Evaluation Kit for the DS2756

Evaluation Kit for the DS2756

Features and Benefits

  • Demonstrates the capabilities of the DS2756 High Accuracy Battery Fuel Gauge, including:
    • Programmable Suspend Mode
    • Temperature measurement
    • Voltage measurement
    • Current measurement
    • Current and Voltage Snapshot Mode
    • Current accumulation
    • Temperature and Accumulated Current Alarms
    • Information storage
    • Identification
  • Interfaces to the USB port of a PC running Windows XP® or older

Product Detail

The DS2756 evaluation kit (EV kit) makes performance evaluation, software development, and prototyping with the DS2756 High Accuracy Battery Fuel Gauge easy. The evaluation board interfaces to a PC through a DS9123O USB Adapter and RJ-11 cable connection.

The DS2756 EV kit evaluation software gives the user complete control of all functions of the DS2756. 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 and fuel gauging algorithms to improve remaining capacity calculations based on specific cell characteristics.

The evaluation board circuit is designed to provide the DS2756 with accurate parameter measurements and protect the DS2756 from ESD damage. Kit demonstration boards will vary as they are improved upon over time. For information on the demonstration board circuits refer to our website at www.maximintegrated.com.

Recently Viewed