Delta-electronics Q48DR User Manual

DATASHEET DS_Q48DR1R533_03152007 Delphi Series Q48DR, 87W-100W, Quarter Brick Dual Output, DC/DC Power Modules: 48V in, 1.5V and 3.3V, 15A out each c

DS_Q48DR1R533_03152007 11 Figure 23: Remote on/off implementation Output Voltage Adjustment (TRIM) To increase or decrease the output voltage se

DS_Q48DR1R533_03152007 12 FEATURES DESCRIPTIONS (CON.) Figure 25: Circuit configuration for trim-up (increase output voltage) If the external res

DS_Q48DR1R533_03152007 Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)THERMAL CONSIDERATIONS Thermal management is an

DS_Q48DR1R533_03152007 14 MECHANICAL DRAWING Pin No. Name Function 1 2 3 4 5 6 7 8 -Vin ON/OFF +Vin +Vout2 TRIM Output RTN +Vout1 Optional Negat

DS_Q48DR1R533_03152007 15 PART NUMBERING SYSTEM Q 48 D R 1R5 33 N R F A Form Factor Input Voltage Number of Outputs Product Series Output Voltage

DS_Q48DR1R533_03152007 TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and

ELECTRICAL CHARACTERISTICS CURVES Figure 1: Efficiency vs. load current Iout1 for minimum, nominal, and maximum input voltage at 25°C, for Iout2=7.5A

DS_Q48DR1R533_03152007 5 ELECTRICAL CHARACTERISTICS CURVES Figure 5: Turn-on transient at zero load current(2ms/div).Vin=48V. Negative logic turn on.

DS_Q48DR1R533_03152007 6 ELECTRICAL CHARACTERISTICS CURVES Figure 9: Typical full load input characteristics at room temperature Figure 10: Output v

DS_Q48DR1R533_03152007 7 ELECTRICAL CHARACTERISTICS CURVES Figure 13: Output voltage response to step-change in load current Iout2 (75%-50%-75% of I

DS_Q48DR1R533_03152007 8 ELECTRICAL CHARACTERISTICS CURVES Figure 17: Input Terminal Ripple Current-ic, at full rated output current and nominal input

DS_Q48DR1R533_03152007 9 ELECTRICAL CHARACTERISTICS CURVES Figure 21: Output voltage vs. load current Iout1 showing typical current limit curves and c

DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the DC/DC power modules will interact with the modules