High-Accuracy Battery Fuel Gauge
www.DataSheet4U.com
DS2755
High-Accuracy Battery Fuel Gauge with Snapshot
www.maxim-ic.com
FEATURES
Snapshot Mode ...
Description
www.DataSheet4U.com
DS2755
High-Accuracy Battery Fuel Gauge with Snapshot
www.maxim-ic.com
FEATURES
Snapshot Mode Allows Instantaneous Power Measurement Accurate Current Measurement for Coulomb Counting (Current Accumulation) - 2% ±4μV over ±64mV Input Range - 2% ±200μA over ±3.2A Range Using a 20mΩ Sense Resistor Current Measurement - 9-Bit Bidirectional Snapshot Measurement - 12-Bit Bidirectional Average Updated Every 88ms - 15-Bit Bidirectional Average Updated Every 2.8s Voltage Measurement - 9-Bit Snapshot Measurement - 10-Bit Measurement Updated Every 4ms Temperature Measurement - 10-Bit Measurement, 0.125°C Resolution Using Integrated Sensor Host Alerted When Accumulated Current or Temperature Exceeds User-Selectable Limits 96 Bytes of Lockable EEPROM 8 Bytes of General-Purpose SRAM Dallas 1-Wire® Interface with Unique 64-Bit Device Address with Standard 16kbps or Overdrive 142kbps Timing 3mm Dimension of 8-Pin TSSOP Package Allows Mounting on Side of Thin Prismatic Li+ and Li+/Polymer Cells
PIN CONFIGURATION
VIN VSS PIO VDD 1 2 2 3 2 4 8 7 6 5 DQ SNS IS2 IS1
DS2755E 8-Pin TSSOP Package
DESCRIPTION
The DS2755 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 DS2755 provides the key hardware components required to accurately estimate remaining capacity by integrating low-power, precision measurements of tempera...
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