DS2756
Overview
The DS2756 high-precision battery fuel gauge is a data-acquisition and information-storage device tailored for cost-sensitive and space-constrained 1cell 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.
- Programmable Suspend Mode
- Accurate Current Accumulation - 2% ±4V over ±64mV Input Range - 2% ±200A over ±3.2A with 20m 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
