Delta Q48SR - Manuals - manualsarea.com

Page 2 - TECHNICAL SPECIFICATIONS; PARAMETER; NOTES and CONDITIONS

TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vout unless otherwise noted; mounted on board.) PARAMETER NOTES and CONDITIONS Q48SR1R840NR A Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous 80 Vdc Transient (100ms) 100ms 100 Vdc Operating Temper...

Page 3 - ELECTRICAL CHARACTERISTICS CURVES; Figure

3 ELECTRICAL CHARACTERISTICS CURVES 60 65 70 75 80 85 90 95 5 10 15 20 25 30 35 40 OUTPUT CURRENT (A) EFFICIENCY (%) 36Vin 48Vin 75Vin 0.0 4.0 8.0 12.0 16.0 20.0 24.0 5 10 15 20 25 30 35 40 OUTPUT CURRENT(A) POWER DISSIPATION (W) 36Vin 48Vin 75Vin Figure 1: Efficiency vs. load current for minimum, n...

Page 6 - Copper Strip

6 ELECTRICAL CHARACTERISTICS CURVES Figure 13: 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). Figure 14: Input reflected ripple current, i s , through a 12µH source inductor at nomin...

Page 7 - Output voltage vs. load current showing typical

7 ELECTRICAL CHARACTERISTICS CURVES 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 10 20 30 40 50 60 LOAD CURRENT (A) OU TPU T VOLTAGE ( V ) Vin=48V Figure 17: Output voltage vs. load current showing typical current limit curves and converter shutdown points.

Page 8 - Soldering and Cleaning Considerations; DESIGN CONSIDERATIONS; Input Source Impedance; The input source must be insulated from any

8 Do not ground one of the input pins without grounding one of the output pins. This connection may allow a non-SELV voltage to appear between the output pin and ground. The power module has extra-low voltage (ELV) outputs when all inputs are ELV. This power module is not internally fused. To achiev...

Page 9 - Remote on/off implementation; Remote Sense; Vout; Resistance; Effective circuit configuration for remote sense; FEATURES DESCRIPTIONS; Over-Voltage Protection

9 Vo(+) Vi(+) Vo(-) Sense(-) Sense(+) Vi(-) ON/OFF Figure 18: Remote on/off implementation Remote Sense Remote sense compensates for voltage drops on the output by sensing the actual output voltage at the point of load. The voltage between the remote sense pins and the output terminals must not exce...

Page 10 - ΚΩ; down; Output voltage; ref; up

FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment (TRIM) To increase or decrease the output voltage set point, connect an external resistor between the TRIM pin and either the SENSE(+) or SENSE(-). The TRIM pin should be left open if this feature is not used. Figure 20: Circuit configuration fo...

Page 11 - THERMAL CURVES; Hot spot location; THERMAL CONSIDERATIONS; Thermal Testing Setup; and the measured location is illustrated in Figure; Wind tunnel test setup

11 THERMAL CURVES Figure 24: Hot spot location ＊ The allowed maximum hot spot temperature is defined at 114 ℃ 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 te...

Page 12 - Output current vs. ambient temperature and air

Figure 27: Output current vs. ambient temperature and air velocity (V in =48V, V out =1.0V, transverse orientation) Figure 26: Output current vs. ambient temperature and air velocity (V in =48V, V out =1.5V, transverse orientation) Q48SR1R840(Standard) Output Current vs. Ambient Temperature and Air ...

Page 13 - MECHANICAL DRAWING; Name

13 MECHANICAL DRAWING Pin No. Name Function 1 2 3 4 5 6 7 8 -Vin ON/OFF +Vin +Vout +SENSE TRIM -SENSE -Vout Negative input voltage Remote ON/OFF Positive input voltage Positive output voltage Positive remote sense Output voltage trim Negative remote sense Negative output voltage Notes: 1 2 3 Pins 1-...

Page 14 - PART NUMBERING SYSTEM; MODEL LIST; MODEL NAME; Note: Please contact us for factory pre-set fixed output voltages.

14 PART NUMBERING SYSTEM The part numbering system for Delta’s Q48SR DC/DC converters have the following format: Q 48 S R 1R8 40 N R A Form Factor Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length Space Option Code Q - Quarter Brick 48V S - Single R...