DS2762

High-Precision Li+ Battery Monitor with Alerts

1-Wire Battery Monitor Integrates Single-Cell Protector and Alerts System when Current or Temperature Exceeds User-Defined Limits


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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.
DS2762 high-precision Li+ battery monitor is a data-acquisition, information-storage, and safety-protection device tailored for cost-sensitive battery pack applications | Pin Configurations DS2762 high-precision Li+ battery monitor is a data-acquisition, information-storage, and safety-protection device tailored for cost-sensitive battery pack applications | Pin Configurations Enlarge+

Key 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 25mΩ 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
  • 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: 60µA typ, 90µA max
    • Sleep Current: 1µA typ, 2µA max

Applications/Uses

  • Cell Phones/Smartphones
  • Digital Cameras
  • PDAs
Part NumberFunctionsBattery TypeInterfaceUser Data Storage
(Bytes)
Parameters MeasuredApplicationsBattery ProtectionVSUPPLY
(V)
VSUPPLY
(V)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
minmaxSee Notes
DS2762 
Fuel Gauge
Protector
Status Monitor
1 Cell Li-Ion1-Wire
16 SRAM
32 EEPROM
Current
Temperature
Voltage
Pack
Over-Current
Over/Under Voltage
2.55.5
FCHIP/12
TSSOP/16
-40 to +85$3.65 @1k
See All Battery Monitors, Protectors, and Selectors (51)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


DS2762K: Li+ Battery Monitor Evaluation Kit
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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