Delta Q48DC - Manuals - manualsarea.com

Page 2 - TECHNICAL SPECIFICATIONS; PARAMETER

DS_Q48DC12003_03112008 2 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS Q48DC12003NR A Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient 100ms 100 Vdc Operating Tempera...

Page 3 - ELECTRICAL CHARACTERISTICS CURVES; maximum input voltage at 25

DS_Q48DC12003_03112008 3 ELECTRICAL CHARACTERISTICS CURVES 60 63 66 69 72 75 78 81 84 87 90 0.3 0.7 1.1 1.5 1.9 2.3 2.7 OUTPUT CURRENT(A ) E F F IC IE N C Y (% ) 1 48Vin 75Vin 36V in 3.0 3.8 4.6 5.4 6.2 7.0 7.8 8.6 9.4 10.2 0.3 0.7 1.1 1.5 1.9 2.3 2.7 OUTPUT CURRENT(A ) PO W E R D ISSI PAT IO N (W )...

Page 4 - Turn-on transient at full rated load current (resistive

DS_Q48DC12003_03112008 4 ELECTRICAL CHARACTERISTICS CURVES Figure 4: Turn-on transient at zero load current (10ms/div). Vin=48V. Top Trace: Vout: 5V/div; Bottom Trace: ON/OFF input: 5V/div. Figure 5: Turn-on transient at full rated load current (resistive load) (10 ms/div). Vin=48V. Top Trace: Vout;...

Page 5 - Figure

DS_Q48DC12003_03112008 5 ELECTRICAL CHARACTERISTICS CURVES 60 63 66 69 72 75 78 81 84 87 90 0.3 0.7 1.1 1.5 1.9 2.3 2.7 OUTPUT CURRENT(A ) E F F IC IE N C Y (% ) 1 48Vin 75Vin 36V in 3.0 3.8 4.6 5.4 6.2 7.0 7.8 8.6 9.4 10.2 0.3 0.7 1.1 1.5 1.9 2.3 2.7 OUTPUT CURRENT(A ) PO W E R D ISSI PAT IO N (W )...

Page 7 - Copper Strip; Output voltage noise and ripple measurement; Output voltage vs. load current showing typical

DS_Q48DC12003_03112008 7 ELECTRICAL CHARACTERISTICS CURVES Vo(-) Vo(+) 10u 1u Copper Strip SCOPE RESISTIV LOAD Figure 13: Output voltage noise and ripple measurement test setup. Figure 14: Output voltage ripple at nominal input voltage (Vin=48V) and rated load current (Io1=Io2=2.7A,20 mV/div). Load ...

Page 9 - Trim; Remote on/off implementation

DS_Q48DC12003_03112008 9 FEATURES DESCRIPTIONS Over-Current Protection The modules include an internal output over-current protection circuit, which will endure current limiting for an unlimited duration during output overload. If the output current exceeds the OCP set point, the modules will automa...

Page 10 - Circuit configuration for trim-down (decrease; down; Circuit configuration for trim-up (increase output

DS_Q48DC12003_03112008 10 FEATURES DESCRIPTIONS (CON.) 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 the Vo(+) or Vo(-). The TRIM pin should be left open if this feature is...

Page 11 - THERMAL CONSIDERATIONS; Thermal Testing Setup; Wind Tunnel Test Setup; THERMAL CURVES; Temperature measurement location; Output current vs. ambient temperature and air velocity

DS_Q48DC12003_03112008 11 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 temperature range of the module. Convection cooling is usually the dominant mode of he...

Page 12 - MECHANICAL DRAWING; Function

DS_Q48DC12003_03112008 12 MECHANICAL DRAWING Pin No. Name Function 1 2 3 4 5 6 7 +Vin ON/OFF -Vin -Vout GND Trim +Vout Positive input voltage Remote ON/OFF Negative input voltage Negative output voltage Ground Output voltage trim Positive output voltage

Page 13 - MODEL NAME; CONTACT

DS_Q48DC12003_03112008 13 PART NUMBERING SYSTEM Q 48 D C 120 03 N R F A Product Type Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length Option Code Q - Quarter Brick 48V D - Dual Output C - 2nd generation of bipolar dual output 120 - 12.1V 03 - 2.7A ...