Instruction/ maintenance manual of the product Series Q48DR Delta Electronics
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DATASHEET DS_Q48DR1R833_0316 2007 Delphi Series Q48DR, 87W-100W, Quarter Brick Dual Output, DC/DC Power Modules: 48V in, 1.8V and 3.3V, 15A out each channel The Delphi Series Q48DR Quarter Brick Dual,.
DS_Q48DR1R833_0316 2007 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nomi nal Vout unless o therwise noted.) PARAMETER NOTES and CONDITIONS Q48DR1R833NRFA Min.
ELECTRICAL CHARACT ERISTICS CURVES Figure 1: Efficiency vs. load current Iout1 for minimum, nominal, and maxi mum input voltage at 2 5 ° C, for Iout2=7.5A. Figure 2: Efficiency vs. load current Iout2 for minimum, nominal, and maxi mum input voltage at 2 5 ° C, for Iout1=7.
DS_Q48DR1R833_0316 2007 4 ELECTRICAL CHARACT ERISTICS CURVES Figure 5: Turn-on transient at zero load current(2ms/div). Vin=48V. Negative logic turn on. Top Trace: Vout; 1V/div; Bottom Trace: ON/OFF input: 5V/div Figure 6: Turn-on transient at full ra ted load current (resistive load) (2 ms/div).
DS_Q48DR1R833_0316 2007 5 ELECTRICAL CHARACTERISTICS CURVES F te igure 9: Typical full load input characteristics at room mperature I F cu o ca C m th mm (2 inches to 3 inches) from the modul e. igure 10: Output voltage response to step-change in load rrent Iout2 (75%-50%-75% of Io, max; di/dt = 0.
DS_Q48DR1R833_0316 2007 6 ELECTRICAL CHARACT ERISTICS CURVES Figure 13: Input Terminal Ripple Current-i c , at full rated output current and nominal input voltage w ith 12µH source impedance and 33 µF electrolytic capacitor (500 mA/d iv, 2us/div).
DS_Q48DR1R833_0316 2007 7 ELECTRICAL CHARACT ERISTICS CURVES Figure 17: Output voltage vs. load current Iout1 showing typical current limit curves and converter shutdow n poi nts. Figure 18: Output voltage vs. load curr ent Iout2 showing typical current limit curves and converter shutdow n points.
DS_Q48DR1R833_0316 2007 8 Do not ground one of the input pins without gro unding one of the output pins. This conne ction may allow a non-SELV voltage to appear between the output pin and ground. The power module h as extra-low voltage (ELV) outputs when all inputs are ELV.
DS_Q48DR1R833_0316 2007 9 Figure 19: Remote on/off implementation Output Voltage Adjustment (TRIM) To increase or decrea se the output voltage set poi nt, the modules may be connected wit h an external resistor between the TRIM pin and eit her Vout1(+) or RTN.
DS_Q48DR1R833_0316 2007 10 FEATURES DESCRIPTIONS (CON.) Figure 21: Circuit configuration for trim-up (increase output voltage) If the external resistor is connected bet ween the TRIM and RTN, the output voltage set point increases (Fig. 21). The external resistor value is from table below.
DS_Q48DR1R833_0316 2007 Note: Wind T unnel Test Setup Figure Dim nsions are in mi llimeters and (Inc he 11 THERMAL CONSIDERATIONS Thermal management is an important part of the system design. To ensure proper, rel iable operation, sufficient cooling of the p ower module is need ed over the entire temperature range of the module.
DS_Q48DR1R833_0316 2007 12 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 TRIM2 Notes: 1 2 Pins 1-8 are 1.
DS_Q48DR1R833_0316 2007 48 13 PART NUMBERING SYSTEM Q D R 1R8 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 48 - 36-75V D-Dual Output R-Open frame 2R5-2.
An important point after buying a device Delta Electronics Series Q48DR (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Delta Electronics Series Q48DR yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Delta Electronics Series Q48DR - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Delta Electronics Series Q48DR you will learn all the available features of the product, as well as information on its operation. The information that you get Delta Electronics Series Q48DR will certainly help you make a decision on the purchase.
If you already are a holder of Delta Electronics Series Q48DR, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Delta Electronics Series Q48DR.
However, one of the most important roles played by the user manual is to help in solving problems with Delta Electronics Series Q48DR. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Delta Electronics Series Q48DR along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
