DS2756 Datasheet | Maxim Integrated

DESCRIPTION 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 ponents 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 generalpurpose 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. TYPICAL OPERATING CIRCUIT 1-Wire is a registered trademark of Maxim Integrated Products, Inc. High-Accuracy Battery Fuel Gauge with Programmable Suspend Mode FEATURES - Programmable Suspend Mode - Accurate Current Accumulation - 2% ±4V over ±64m V Input Range - 2% ±200A 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 - 3mm Dimension of 8-Pin TSSOP Package Allows Mounting on Side of Thin Prismatic Li+ and Li+/Polymer Cells ORDERING INFORMATION PART DS2756E+ TEMP RANGE PIN-PACKAGE -20°C to +70°C 8 TSSOP DS2756E+T&R -20°C to +70°C DS2756E+ on Tape-and-Reel + Denotes lead(Pb)-free/Ro...