Описание
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.
- Programmable Suspend Mode
- Accurate Current Accumulation
- 2% ±4µV over ±64mV Input Range
- 2% ±200µA over ±3.2A with 20mO Sense
- 9-Bit Snapshot Measurement
- 12-Bit Average Updated Every 88ms
- 15-Bit Average Updated Every 2.8s
- 9-Bit Snapshot Measurement
- 10-Bit Average Updated Every 4ms
- 10-Bit with 0.125°C Resolution
