Microchip Technology Inc

MIC2587

In Production

The MIC2587 and MIC2587R are single-channel positive voltage hot swap controllers designed to provide safe insertion and removal of boards for systems that require live (always-powered) backplanes. These devices use few external components and act as controllers for external N-channel power MOSFET devices to provide inrush current control and output voltage slew rate control. Overcurrent fault protection is provided via programmable analog foldback current limit circuitry equipped with a programmable overcurrent filter. These protection circuits combine to limit the power dissipation of the external MOSFET to insure that the MOSFET is in its SOA during fault conditions. The MIC2587 provides a circuit breaker function that latches the output MOSFET off if the load current exceeds the current limit threshold for the duration of the programmable timer. The MIC2587R provides a circuit breaker function that automatically attempts to restart power after a load current fault at a low duty cycle to prevent the MOSFET from overheating. Each device provides either an active-HIGH (-1BM) or an active-LOW (-2BM) "Power-is-Good" signal to indicate that the output load voltage is within tolerance.

 

    Features

        • MIC2587: Pin-for-pin functional equivalent to the LT1641
        • Operates from +10V to +80V with 100V ABS MAX operation
        • Industrial temperature specifications at VCC = +24V and VCC = +48V
        • Programmable current limit with analog foldback
        • Active current regulation minimizes inrush current
        • Electronic circuit breaker for overcurrent fault protection
          • Output latch off (MIC2587) or
          • Output auto-retry (MIC2587R)
        • Fast responding circuit breaker (< 2µs) to short circuit loads
        • Programmable input undervoltage lockout
        • Fault Reporting: Open-drain "Power-is-Good" output for enabling DC/DC converter(s)
          • Active-HIGH: MIC2587-1/MIC2587R-1
          • Active-LOW: MIC2587-2/MIC2587R-2
    Parameter Name
    Value
    Product type
    High Voltage (>16V)
    Latch off
    Yes
    # of PWRGD
    1 Active Low
    Foldback Current Limit
    Yes
    Θja (C/W)
    160
    Documentation
    Data Sheets
    11/05/2015
    972KB
      Application Notes
     
     
     
    AppNote
    10/02/2015
    125KB
    AppNote
    10/01/2015
    36KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MIC2587-1YM
    8
    SOIC
    -40C to +85C
    TUBE
    3.74
    3.12
    2.84
    2.74
    2.71
    MIC2587-1YM-TR
    8
    SOIC
    -40C to +85C
    T/R
    3.74
    3.12
    2.84
    2.74
    2.71
    MIC2587-2YM
    8
    SOIC
    -40C to +85C
    TUBE
    3.74
    3.12
    2.84
    2.74
    2.71
    MIC2587-2YM-TR
    8
    SOIC
    -40C to +85C
    T/R
    3.74
    3.12
    2.84
    2.74
    2.71
     
    MIC2587R-1YM
    8
    SOIC
    -40C to +85C
    TUBE
    3.74
    3.12
    2.84
    2.74
    2.71
    MIC2587R-1YM-TR
    8
    SOIC
    -40C to +85C
    T/R
    3.74
    3.12
    2.84
    2.74
    2.71
     
    MIC2587R-2YM
    8
    SOIC
    -40C to +85C
    TUBE
    3.74
    3.12
    2.84
    2.74
    2.71
    MIC2587R-2YM-TR
    8
    SOIC
    -40C to +85C
    T/R
    3.74
    3.12
    2.84
    2.74
    2.71
     

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    MIC2587-1YM
    0.075000
    0.163265
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    MIC2587-1YM-TR
    0.075000
    0.250000
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    MIC2587-2YM
    0.075000
    0.163265
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    MIC2587-2YM-TR
    0.075000
    0.250000
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    MIC2587R-1YM
    0.075000
    0.163265
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    MIC2587R-1YM-TR
    0.075000
    0.250000
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    MIC2587R-2YM
    0.075000
    0.163265
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    MIC2587R-2YM-TR
    0.075000
    0.250000
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    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.