DS2764

www.DataSheet4U.com DS2764 High-Precision Li+ Battery Monitor with 2-Wire Interface www.maxim-ic.com GENERAL DESCRIPTION The DS2764 high-precision Li+ battery monitor is a data-acquisition, information-storage, and safetyprotection device tailored for cost-sensitive battery pack applications. This low-power device integrates precise temperature, voltage, and current measurement, nonvolatile (NV) data storage, and Li+ protection into the small footprint of either a TSSOP package or flip-chip package. The DS2764 is a key component in applications requiring remaining capacity estimation, safety monitoring, and batteryspecific data storage. § FEATURES Li+ Safety Circuit Overvoltage Protection Overcurrent/Short-Circuit Protection Undervoltage Protection 0V Battery Recovery Charge Available in Two Configurations: Internal 25mW Sense Resistor External User-Selectable Sense Resistor Current Measurement 12-Bit Bidirectional Measurement Internal Sense Resistor Configuration: 0.625mA LSB and ±1.9A Dynamic Range External Sense Resistor Configuration: 15.625mV LSB and ±64mV Dynamic Range Current Accumulation: Internal Sense Resistor: 0.25mAhr LSB External Sense Resistor: 6.25mVhr LSB Voltage Measurement with 4.88mV Resolution Temperature Measurement Using Integrated Sensor with 0.125°C Resolution 40 Bytes of Lockable EEPROM Option for Unique 64-bit ID Industry 2-Wire Interface with Programmable Slave Address Low-Power Consumption: Active Current: 60mA typ, 90mA max Sleep Current: 1mA ...