Microchip Technology Inc

MCP73871

In Production

The MCP73871 device is a 1A fully integrated linear solution for system load sharing and Li-Ion / Li-Polymer battery charge management with AC-DC wall adapter and USB port power sources selection. It’s also capable of autonomous power source selection between input or battery. The MCP73871 device employs a constant current/constant voltage (CC/CV) charge algorithm with selectable charge termination point. The constant voltage regulation is fixed with four available options: 4.10V, 4.20V, 4.35V, or 4.40V.

 

    Features

        • Integrated System Load Sharing and Battery Charge Management
        • Simultaneously Power the System and Charge the Li-Ion Battery
        • Integrated Pass Transistors
        • Integrated Current Sense
        • Integrated Reverse Discharge Protection
        • Selectable Input Power Sources: USB Port or AC-DC Wall Adapter
        • Preset High Accuracy Charge Voltage Options:4.10V, 4.20V, 4.35V or 4.40V
        • ±0.5% Regulation Tolerance
        • Maximum 1.8A Total Input Current Control
        • Resistor Programmable Fast Charge Current Control: 50 mA to 1A
        • Resistor Programmable Termination Set Point
        • Selectable USB Input Current Control: Absolute Maximum: 100 mA (L) / 500 mA (H)
        • Automatic Recharge
        • Automatic End-of-Charge Control
        • Safety Timer With Timer Enable/Disable Control
        • 0.1C Preconditioning for Deeply Depleted Cells
        • Battery Cell Temperature Monitor
        • Undervoltage Lockout (UVLO)
        • Low Battery Status Indicator (LBO)
        • Power-Good Status Indicator (PG)
        • Charge Status and Fault Condition Indicators
    Parameter Name
    Value
    Linear Mode
    Yes
    # of Cells
    1
    Int/Ext FET
    Int
    Vcc Range (V)
    4.4 to 6
    Voltage Regulation Accuracy (%)
    0.5
    Temperature Monitor
    Yes
    Charge Safety Timers
    Yes
    Max Thermal Regulation
    Yes
    Documentation
    Data Sheets
    09/09/2013
    1302KB
      Application Notes
     
     
     
     
    AppNote
    06/10/2011
    235KB
      Sell Sheets
     
     
     
     
    Sell Sheets
    05/16/2011
    120KB
      Product Selection Tools
     
     
     
     
    Product Line Card
    10/16/2017
    4415KB
      User Guides
     
     
     
    User Guides
    11/17/2009
    366KB
    User Guides
    08/18/2008
    393KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MCP73871-1AAI/ML
    20
    QFN
    -40C to +85C
    TUBE
    1.79
    1.49
    1.35
    1.31
    1.29
    MCP73871-1CAI/ML
    20
    QFN
    -40C to +85C
    TUBE
    1.79
    1.49
    1.35
    1.31
    1.29
    MCP73871-1CCI/ML
    20
    QFN
    -40C to +85C
    TUBE
    1.79
    1.49
    1.35
    1.31
    1.29
    MCP73871-2AAI/ML
    20
    QFN
    -40C to +85C
    TUBE
    1.79
    1.49
    1.35
    1.31
    1.29
    MCP73871-2CAI/ML
    20
    QFN
    -40C to +85C
    TUBE
    1.79
    1.49
    1.35
    1.31
    1.29
    MCP73871-2CCI/ML
    20
    QFN
    -40C to +85C
    TUBE
    1.79
    1.49
    1.35
    1.31
    1.29
    MCP73871-3CAI/ML
    20
    QFN
    -40C to +85C
    TUBE
    1.79
    1.49
    1.35
    1.31
    1.29
    MCP73871-3CCI/ML
    20
    QFN
    -40C to +85C
    TUBE
    1.79
    1.49
    1.35
    1.31
    1.29
    MCP73871-4CAI/ML
    20
    QFN
    -40C to +85C
    TUBE
    1.79
    1.49
    1.35
    1.31
    1.29
    MCP73871-4CCI/ML
    20
    QFN
    -40C to +85C
    TUBE
    1.79
    1.49
    1.35
    1.31
    1.29
    MCP73871T-1AAI/ML
    20
    QFN
    -40C to +85C
    T/R
    1.79
    1.49
    1.35
    1.31
    1.29
     
    MCP73871T-1CAI/ML
    20
    QFN
    -40C to +85C
    T/R
    1.79
    1.49
    1.35
    1.31
    1.29
     
    MCP73871T-1CCI/ML
    20
    QFN
    -40C to +85C
    T/R
    1.79
    1.49
    1.35
    1.31
    1.29
     
    MCP73871T-2AAI/ML
    20
    QFN
    -40C to +85C
    T/R
    1.79
    1.49
    1.35
    1.31
    1.29
     
    MCP73871T-2CCI/ML
    20
    QFN
    -40C to +85C
    T/R
    1.79
    1.49
    1.35
    1.31
    1.29
     
    MCP73871T-4CAI/ML
    20
    QFN
    -40C to +85C
    T/R
    1.79
    1.49
    1.35
    1.31
    1.29
     
    MCP73871T-4CCI/ML
    20
    QFN
    -40C to +85C
    T/R
    1.79
    1.49
    1.35
    1.31
    1.29
     

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • MCP73871 Demo Board with Voltage Proportional Current Control (VPCC) ( MCP73871DM-VPCC )

      MCP73871

      The MCP73871 Demo Board with Voltage Proportional Current Control is designed to demonstrate Microchip's stand-alone linear Li-Ion battery charger with system power path and load sharing management control solution. The MCP73871 integrates the required elements to meet design challenges when developing new Li-Ion / Li-Polymer batteries powered products.

      The MCP73871 Demo Board with...

    • MCP73871 Li-Ion Charger Evaluation Board ( MCP73871EV )

      MCP73871

      The MCP73871 Evaluation Board is designed to demonstrate Microchip's stand-alone linear Li-Ion battery charger with system power path and load sharing management control solution. The system load is also supported by the Li-Ion battery when input power is disconnected. A number of device options allow the MCP73871 device to be utilized in a variety of applications. Refer to the MCP73871 data sheet...

    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    MCP73871-1AAI/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871-1CAI/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871T-1AAI/ML
    0.043100
    0.212121
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871-1CCI/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871T-1CCI/ML
    0.043100
    0.212121
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871-4CCI/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871T-4CAI/ML
    0.043100
    0.212121
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871T-4CCI/ML
    0.043100
    0.212121
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871T-1CAI/ML
    0.043100
    0.212121
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871-2CCI/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871T-2CCI/ML
    0.043100
    0.212121
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871-3CCI/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871-2CAI/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871-2AAI/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871T-2AAI/ML
    0.043100
    0.212121
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871-3CAI/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    MCP73871-4CAI/ML
    0.043100
    0.076923
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.