1. Products
  2. Power Management
  3. Battery Management
  4. Battery Charger IC
  5. Linear Battery Chargers
  6. LTC4053-4.2

Data Sheet
PDF
JP
User Guides
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Overview

Features and Benefits

  • Charges Single-Cell Li-Ion Batteries Directly from USB Port
  • Thermal Regulation Maximizes Charging Rate without Risk of Overheating*
  • Programmable Charge Current with ±7% Accuracy
  • Low Dropout Operation
  • No External MOSFET, Sense Resistor or Blocking Diode Required
  • Programmable Charge Termination Timer
  • Preset Charge Voltage with ±1% Accuracy
  • C/10 Charge Current Detection Output
  • AC Present Logic Output
  • 25µA Supply Current in Shutdown Mode
  • Automatic Recharge
  • Tiny Thermally Enhanced 10-Pin MSOP Package
  • Charge Current Monitor Useful for Gas Gauging*
  • Thermistor Input for Temperature Qualified Charging

Product Details

The LTC4053 is a standalone linear charger for lithium-ion batteries that can be powered directly from a USB port. The IC contains an on-chip power MOSFET and eliminates the need for an external sense resistor and blocking diode. Thermal regulation automatically adjusts charge current to limit die temperature during high power or high ambient temperature conditions. This feature protects the end product and the LTC4053 from thermal stress while the IC charges the battery at maximum rate without interruption.

The charge current and charge time can be set externally with a single resistor and capacitor, respectively. When the input supply (wall adapter or USB supply) is removed, the LTC4053 automatically enters a low current sleep mode, dropping the battery drain current to less than 5µA.

The LTC4053 also includes NTC temperature sensing, C/10 detection circuitry, AC present logic, low battery charge conditioning (trickle charging) and shutdown (25µA supply current).

The LTC4053 is available in a 10-pin thermally enhanced MSOP package.

Applications

  • Cellular Telephones
  • Handheld Computers
  • Charging Docks and Cradles
  • MP3 Players
  • Digital Cameras

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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 (2)

Documentation & Resources

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  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (2)
  • Design Notes (2)
  • Application Notes (1)
  • Technical Articles (1)
    • Document Type

    Tools & Simulations

    LTspice

    LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

    LTspice

    Models for the following parts are available in LTspice:

    LTC4053-4.2

    Product Recommendations

    LTC4053-4.2 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
    LTC4053EDD-4.2#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4053EDD-4.2#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
    LTC4053EMSE-4.2#PBF Material Declaration Reliability Data 10-Lead MSOP w/ EP
    LTC4053EMSE-4.2#TRPBF Material Declaration Reliability Data 10-Lead MSOP w/ EP
    Wafer Fabrication Data R421 Reliability Data

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    Select Model for PCN Information
    • LTC4053EMSE-4.2#PBF Production
    • LTC4053EMSE-4.2#TRPBF Production

    Support & Discussions

    LTC4053-4.2 Contact ADI Technical Support »
    LTC4053-4.2 Ask your question »
    LTC4053-4.2 Contact ADI Technical Support » LTC4053-4.2 Ask your question »

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    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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