Microchip Technology Inc

MIC2594

In Production

The MIC2588 and the MIC2594 are single-channel, negative-voltage hot swap controllers designed to address the need for safe insertion and removal of circuit boards into "live" high-voltage system backplanes, while using very few external components. The MIC2588 and the MIC2594 are each available in an 8-pin SOIC package and work in conjunction with an external N-Channel MOSFET for which the gate drive is controlled to provide inrush current limiting and output voltage slew-rate control. Overcurrent fault protection is also provided and includes a programmable overcurrent threshold. During an output overload condition, a constant-current regulation loop is engaged to ensure that the system power supply maintains regulation. If a fault condition exceeds a built-in 400µs nuisance-trip delay, the MIC2588 and the MIC2594 will latch the circuit breaker's output off and will remain in the off state until reset by cycling either the UV/OFF pin or the power to the IC. A master Power-Good signal is provided to indicate that the output voltage of the soft-start circuit is within its valid output range. This signal can be used to enable one or more DC-DC converter modules.

 

    Features

        • MIC2588: Pin-for-pin functional equivalent to the LT1640/LT1640A/LT4250
        • Provides safe insertion and removal from live -48V (nominal) backplanes
        • Operates from -19V to -80V
        • Electronic circuit breaker function
        • Built-in 400µs "nuisance-trip" delay (tFLT)
        • Regulated maximum output current into faults
        • Programmable inrush current limiting
        • Fast response to short circuit conditions (< 1µs)
        • Programmable undervoltage and overvoltage lockouts (MIC2588-xBM)
        • Programmable UVLO hysteresis (MIC2594-xBM)
        • Fault reporting: Active-HIGH (-1BM) and Active-LOW (-2BM) Power-Good output signal
    Parameter Name
    Value
    Product type
    High Voltage (>16V)
    Latch off
    Yes
    # of PWRGD
    1 Active High
    Θja (C/W)
    152
    Documentation
    Data Sheets
    11/05/2015
    1079KB
      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
    MIC2594-1YM
    8
    SOIC
    -40C to +85C
    TUBE
    2.67
    2.23
    2.02
    1.95
    1.93
     
    MIC2594-1YM-TR
    8
    SOIC
    -40C to +85C
    T/R
    2.67
    2.23
    2.02
    1.95
    1.93
     
    MIC2594-2YM
    8
    SOIC
    -40C to +85C
    TUBE
    2.67
    2.23
    2.02
    1.95
    1.93
     
    MIC2594-2YM-TR
    8
    SOIC
    -40C to +85C
    T/R
    2.67
    2.23
    2.02
    1.95
    1.93
     

    ** 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
    MIC2594-2YM-TR
    0.075000
    0.250000
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    MIC2594-2YM
    0.075000
    0.163265
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    MIC2594-1YM-TR
    0.075000
    0.250000
    8
    SOIC
    3.90mm(.150in)
    NiPdAu
    e4
    MIC2594-1YM
    0.075000
    0.163265
    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.