Battery Monitoring Li-Ion 4.275V 16-Pin TSSOP

The DS2764 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 DS2764 is a key component in applications requiring remaining capacity estimation, safety monitoring, and battery-specific data storage.

• Li+ Safety Circuit
  • Overvoltage Protection
  • Overcurrent/Short-Circuit Protection
  • Undervoltage Protection

0V Battery Recovery Charge

Available in Two Configurations:

Internal 25mO 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: 15.625µV LSB and ±64mV Dynamic Range

Current Accumulation:

• Internal Sense Resistor: 0.25mAhr LSB
• External Sense Resistor: 6.25µVhr 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: 60µA typ, 90µA max
• Sleep Current: 1µA typ, 2µA max