The DS2756E+ remains in production, however, for new projects, we recommend ModelGauge m5 MAX17201 fuel gauge.
The DS2756E+ 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 DS2756E+ 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 DS2756E+ 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.
Feature
- 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
