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  2. Power Management
  3. Battery Management
  4. Battery Charger IC
  5. SMBUS/I2C/SPI Controlled Battery Chargers
  6. LTC1960

Data Sheet Rev. C
PDF
JP
User Guides
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Overview

Features and Benefits

  • Complete Dual-Battery Charger/Selector System
  • Serial SPI Interface Allows External µC Control and Monitoring
  • Simultaneous Dual-Battery Discharge Extends Run Time by Typically 10%
  • Simultaneous Dual-Battery Charging Reduces Charging Time by Up to 50%
  • Automatic PowerPath™ Switching in <10µs Prevents Power Interruption
  • Circuit Breaker Protects Against Overcurrent Faults
  • 5% Accurate Adapter Current Limit Maximizes Charging Rate
  • 95% Efficient Synchronous Buck Charger
  • Charger Has Low 0.5V Dropout Voltage
  • No Audible Noise Generation, Even with Ceramic Capacitors
  • 11-Bit VDAC Delivers 0.8% Voltage Accuracy
  • 10-Bit IDAC Delivers 5% Current Accuracy
  • VIN Up to 32V; VBATT Up to 28V
  • Available in 5mm × 7mm 38-Pin QFN and 36-Pin Narrow SSOP Packages

Product Details

The LTC1960 is a highly integrated battery charger and selector intended for portable products using dual smart batteries. A serial SPI interface allows an external microcontroller to control and monitor status of both batteries.

A proprietary PowerPath architecture supports simultaneous charging or discharging of both batteries. Typical battery run times are extended by 10%, while charging times are reduced by up to 50%. The LTC1960 automatically switches between power sources in less than 10µs to prevent power interruption upon battery or wall adapter removal.

The synchronous buck battery charger delivers 95% efficiency with only 0.5V dropout voltage, and prevents audible noise in all operating modes. Patented input current limiting with 5% accuracy charges batteries in the shortest possible time without overloading the wall adapter.

The LTC1960’s 5mm × 7mm 38-pin QFN and 36-pin narrow SSOP packages allow implementation of a complete SBS-compliant dual battery system while consuming minimum PCB area.

Applications

  • Portable Computers
  • Portable Instruments

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Documentation & Resources

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  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (1)
  • Application Notes (1)
  • Design Notes (1)
  • Technical Articles (1)
    • Document Type

    Product Recommendations

    LTC1960 Companion Parts

    Recommended Related Parts

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    LTC1960CG#PBF Material Declaration Reliability Data 36-Lead SSOP
    LTC1960CG#TRPBF Material Declaration Reliability Data 36-Lead SSOP
    LTC1960CUHF#PBF Material Declaration Reliability Data 38-Lead QFN (5mm x 7mm w/ EP)
    LTC1960CUHF#TRPBF Material Declaration Reliability Data 38-Lead QFN (5mm x 7mm w/ EP)
    Wafer Fabrication Data R384 Reliability Data

    PCN-PDN Information

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    Select Model for PCN Information
    • LTC1960CG#PBF Production
    • LTC1960CG#TRPBF Production

    Support & Discussions

    LTC1960 Discussions

    RE: LTC1760 LOPWR trip
    RE: Unable to charge industry standard smart battery using LTC1960CG DEMO CIRCUIT 1904A
    RE: LTC1760 SafetySignal timing characteristics
    All LTC1960 Discussions
    LTC1960 Contact ADI Technical Support »
    LTC1960 Ask your question »
    LTC1960 Contact ADI Technical Support » LTC1960 Ask your question »

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