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PRM48JH480T250A02 Datasheet(PDF) 9 Page - Vicor Corporation |
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PRM48JH480T250A02 Datasheet(HTML) 9 Page - Vicor Corporation |
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9 / 45 page  Rev 1.1 vicorpower.com PRMTM Regulator Page 9 of 45 09/2015 800 927.9474 Line Dropout Characteristics Specifications apply during a line dropout condition VIN from 30.0 V to 38.0 V , and trim from 20 V to 55 V, unless otherwise noted; Boldface specifications apply over the temperature range of -40 ºC < TINT < 125ºC (T-grade). Line Dropout Specifications • After startup if VIN drops below VIN_DROPOUT_EN-, a 200 msec line dropout timer is enabled • Operation is sustained down to 30.0 V with specified derating for duration of timer • Line dropout timer is disabled and normal operation resumes when VIN recovers above VIN_DROPOUT_DIS+ • Powertrain shutdown is initiated if VIN does not recover to above VIN_DROPOUT_DIS+ before the timer expires or if Vin falls below VIN_UVLO-_SUPV Attribute Symbol Conditions / Notes Min Typ Max Unit Line Dropout Timer VIN_DROPOUT_EN- Line dropout timer activated when input voltage 37.0 38.0 V Enable Threshold drops below this level Line Dropout Timer VIN_DROPOUT_DIS+ Line dropout timer disabled when input voltage 38.0 39.0 V Disable Threshold recovers above this level Line Dropout Timer Duration tDROPOUT Powertrain shutdown after timer expires 190 200 ms Line Dropout Minimum VIN_DROPOUT_MIN Minimum input voltage for sustained operation 30.0 V Operating Voltage Line Dropout Current Rating %IDROPOUT Percentage of rated current, linearly derated to 75% -18.75 + 3.13 x VIN % between 38.0 V and 30.0 V, see Figure 42 Line Dropout Power Rating %PDROPOUT Percentage of rated current, linearly derated to 75% -18.75 + 3.13 x VIN % between 38.0 V and 30.0 V, see Figure 42 PRM48JH480x250A02 |
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