Instruction/ maintenance manual of the product Q48DC Delta Electronics
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FEA TURES High efficiency: 88%@ ± 12.1V/2.7A Size: 57.9mm x 36.8mm x 9.7mm (2.28”×1.45”×0.38”) Industry standard pin out Fixed frequency operation Input UVLO, Output OCP ,.
DS_Q48DC12003_031 12008 2 TECHNICAL SPECIFICA TIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal V out u nless otherwise noted.) PA R A M E T E R NOTES and CONDITIONS Q48DC12003NR A Min.
DS_Q48DC12003_031 12008 3 ELECTRICAL CHARACTERISTICS CUR VES 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 O UTPUT CURRENT( A ) E FFI C I E NC Y (%) 1 48V in 75V in 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.
DS_Q48DC12003_031 12008 4 ELECTRICAL CHARACTERISTICS CUR VES Figure 4: T urn-on transient at zero lo ad current (10ms/div). Vin =4 8 V . T op T race: Vout: 5V/div; Bottom T race: ON/OFF input: 5V/div . Figure 5: T urn-on transient at full rated l oad current (resistive load) (10 ms/div).
DS_Q48DC12003_031 12008 5 ELECTRICAL CHARACTERISTICS CUR VES 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 O UTPUT CURRENT( A ) E FFI C I E NC Y (%) 1 48V in 75V in 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.
DS_Q48DC12003_031 12008 6 ELECTRICAL CHARACTERISTICS CUR VES Figure 10: T est set-up diagram showing measure ment points for Input T erminal R ipple Current and Input Reflecte d Ripple Current. Note: Measured input reflected-ripple curr ent with a simulated source Inductance (L TEST ) of 12 μ H.
DS_Q48DC12003_031 12008 7 ELECTRICAL CHARACTERISTICS CUR VES Vo(-) Vo(+) 10u 1u Copper Strip SCOPE RESISTI V LOAD Figure 13: Output voltage noise and ripple measure ment test setup. Figure 14: Output voltage ripple at nominal input voltage (Vin=48V) and rated load current (Io1=Io2=2.
DS_Q48DC12003_031 12008 8 DESIGN CONSIDERA TIONS Input Source Impedance The impedance of the input sou rce connecting to the DC/DC powe r modules will intera ct with the modul es and affect the st ability . A low ac-impedance input source is recommended.
DS_Q48DC12003_031 12008 9 FEA TURES DESCRIPTIONS Over-Current Protection The modules include an internal o utput over-current protection circuit, which will endure current limiting for an unlimited duration during output overloa d. If the output current exceeds the OCP set poi nt, the modules will automatically shut down (hiccup mode).
DS_Q48DC12003_031 12008 10 FEA TURES DESCRIPTIONS (CON.) Output V oltage Adjustment (TRIM) To increase or decrease the output voltage set point, the modules may be connected with an external resistor between the TRIM pi n and eit her the Vo(+) or Vo(-).
DS_Q48DC12003_031 12008 11 THERMAL CONSIDERA TIONS Thermal management is an importa nt part of the system design. To ensure proper, re liable operation, su fficient cooling of the power module i s needed over the entire temperature range of the m odule.
DS_Q48DC12003_031 12008 12 MECHANICAL DRA WING Pin No. Name Function 1 2 3 4 5 6 7 +Vin ON/OFF -Vin -V out GND Tr im +V out Positive input voltage Remote ON/OFF Negative input voltage Negative output .
DS_Q48DC12003_031 12008 13 P ART NUMBERING SYSTEM Q 48 D C 120 03 N R F A Product Ty p e Input V olt age Number of Output s Product Series Output V olt age 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.
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If you have not bought Delta Electronics Q48DC 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 Q48DC - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Delta Electronics Q48DC you will learn all the available features of the product, as well as information on its operation. The information that you get Delta Electronics Q48DC will certainly help you make a decision on the purchase.
If you already are a holder of Delta Electronics Q48DC, 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 Q48DC.
However, one of the most important roles played by the user manual is to help in solving problems with Delta Electronics Q48DC. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Delta Electronics Q48DC 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
