●GENERAL DESCRIPTION
●The DS2762 high-precision Li+ battery monitor is a data-acquisition, information-storage, and safety protection 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 DS2762 is a key component in applications including remaining capacity estimation, safety monitoring, and battery specific data storage.
●FEATURES
●Li+ Safety Circuit
● Overvoltage Protection
● Overcurrent/Short-Circuit Protection
● Undervoltage Protection
●Host Alerted When Accumulated Current or Temperature Exceeds User-Selectable Limits
●0V Battery Recovery Charge
●Available in Two Configurations:
● Internal 25mSense 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: 15.625V LSB and ±64mV Dynamic Range
●Current Accumulation:
● Internal Sense Resistor: 0.25mAhr LSB
● External Sense Resistor: 6.25Vhr LSB
●Voltage Measurement with 4.88mV Resolution
●Temperature Measurement Using Integrated Sensor with 0.125°C Resolution
●System Power Management and Control Feature Support
●32 Bytes of Lockable EEPROM
●16 Bytes of General-Purpose SRAM
●Dallas 1-Wire® Interface with Unique 64-Bit Device Address
●Low-Power Consumption:
● Active Current: 60A typ, 90A max
● Sleep Current: 1A typ, 2A max
●APPLICATIONS
●PDAs
●Cell Phones/Smartphones
●Digital Cameras
