Delta Q48DR - Manuals - manualsarea.com

Page 2 - TECHNICAL SPECIFICATIONS; PARAMETER

DS_Q48DR1R533_03152007 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS Q48DR1R533NRFA Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient (100ms) <100ms 100 Vdc Operati...

Page 3 - ELECTRICAL CHARACTERISTICS CURVES; Figure

ELECTRICAL CHARACTERISTICS CURVES Figure 1: Efficiency vs. load current Iout1 for minimum, nominal, and maximum input voltage at 25 ° C, for Iout2=7.5A. Figure 2: Efficiency vs. load current Iout2 for minimum, nominal, and maximum input voltage at 25 ° C, for Iout1=7.5A Figure 3: Efficiency vs. load...

Page 7 - Figure 17: Input Terminal Ripple Current-i; Strip

DS_Q48DR1R533_03152007 8 ELECTRICAL CHARACTERISTICS CURVES Figure 17: Input Terminal Ripple Current-i c , at full rated output current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (500 mA/div, 2us/div). Figure 18: Input reflected ripple current-i s , through a...

Page 9 - DESIGN CONSIDERATIONS; Input Source Impedance

DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the DC/DC power modules will interact with the modules and affect the stability. A low ac-impedance input source is recommended. If the source inductance is more than a few µ H, we advise adding a 10 to 100 ...

Page 10 - FEATURES DESCRIPTIONS; Over-Voltage Protection

DS_Q48DR1R533_03152007 11 Figure 23: Remote on/off implementation Output Voltage Adjustment (TRIM) To increase or decrease the output voltage set point, the modules may be connected with an external resistor between the TRIM pin and either Vout1(+) or RTN. The TRIM pin should be left open if this fe...

Page 12 - THERMAL CONSIDERATIONS; Thermal Testing Setup; THERMAL CURVES; Figure 27: Hot spot temperature measured point; Output load vs. ambient temperature and air velocity

DS_Q48DR1R533_03152007 Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches) THERMAL CONSIDERATIONS Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperatur...

Page 13 - MECHANICAL DRAWING; Function

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 Negative input voltage Remote ON/OFF Positive input voltage Positive output voltage2 Output voltage trim Positive output voltage1 Trim 2 Notes: 1 2 Pins 1-8 are ...

Page 14 - PART NUMBERING SYSTEM; MODEL LIST; MODEL NAME

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 1 Output Voltage 2 ON/OFF Logic Pin Length Option Code Q – Quarter Brick 36V~75V D- Dual Output R-Open frame 1R5-1.5V 1R8-1.8V2R5-2.5V3R3-3.3V 33-3.3V 50-...