DS2762BE Datasheet PDF - Maxim Integrated

●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