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Manual Delta Electronics Q48SP

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  • Delta Electronics Q48SP - page 1

    1 FEATURES  High efficiency: 92.5 % @12V/18A  Size: 57.9x36.8x10.8mm (2.28”x1 .45”x0.43”) (w/o heatspreader) 57.9x36.8x12.7mm (2.28” x1.45”x0.50”) (with heatspreader)  Industry standard pin out  Fixed frequency operation  Fully protected: OTP, OVP, OCP, UVLO  No minimum load required  Wide output trim range: -20~+10 ...

  • Delta Electronics Q48SP - page 2

    DS_Q48SP12017_05302 008 2 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal V out unless otherw ise noted; mounted on bo ard.) PARAMETER NOTES and CONDITIONS Q48SP12017NRFA Min. Ty p. Max. Units ABSOLUTE MAXIMUM RA TINGS Input Voltage Continuous -0.5 80 Vdc Transient (100ms, non-operating) 100ms 100 Vdc Operating Temp ...

  • Delta Electronics Q48SP - page 3

    DS_Q48SP12017_05302 008 3 ELECTRICAL CHARACT ERISTICS CURVES 70 72 74 76 78 80 82 84 86 88 90 92 94 2468 1 0 1 2 1 4 1 6 1 8 OUTPUT C UR R E NT( A) EF F ICIEN CY( % ) 36V 48V 75V 0 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 O U TP UT CURRE N T(A ) LOS S (W ) 36V 48V 75V Figure 1: Efficiency vs. load c urrent fo r minimu m, nomi nal, and maxim ...

  • Delta Electronics Q48SP - page 4

    DS_Q48SP12017_05302 008 4 ELECTRICAL CHARACTERISTICS CURVES Figure 5: Output voltage response to step-change in load current (50%-75% of Io, max: di/dt =0.1A/ µs). Load cap:1µF ceramic capacitor and 10uF T antalum capacitor. T op Trace: Vout (200mV/div), Bo ttom Trace: Iout (5 A /div). Scope measurement shoul d be made using a BNC cabl e (length ...

  • Delta Electronics Q48SP - page 5

    DS_Q48SP12017_05302 008 5 ELECTRICAL CHARACTERISTICS CURVES Figure 9: Test set-up diagram showing measurement points for Input Terminal Ripple Current and Input Reflecte d Ripple Current. Note: Measured input reflected-ripple current with a simulated source Inductance (L TEST ) of 12 μ H. Capacitor Cs offset possible battery impedance. Meas ure cu ...

  • Delta Electronics Q48SP - page 6

    DS_Q48SP12017_05302 008 6 ELECTRICAL CHARACTERISTICS CURVES Vo(-) Vo(+) 10u 1u Copper Strip SCOPE RESISTIV E LOAD Figure 11: Output voltage noise and ripple meas urement test setup Figure 1 2: Output voltage ripple at 36V input voltage and rated load current (50 mV/div). Load capac itance: 1µF ceramic capacitor and 10 µF tantalum capacitor. Bandw ...

  • Delta Electronics Q48SP - page 7

    DS_Q48SP12017_05302 008 7 DESIGN CONSIDERATIONS 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 stability. A low ac-impedan ce input source is recommend ed. If the source inductance is more than a fe w μ H, we advise adding a 100 μ F electrolytic capa ...

  • Delta Electronics Q48SP - page 8

    DS_Q48SP12017_05302 008 8 FEATURES DESCRIPTIONS Over-Current Protection The modules include an inte rnal 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 modul es will automatically shut down and latch off. Over-Voltage P ...

  • Delta Electronics Q48SP - page 9

    DS_Q48SP12017_05302 008 9 FEATURES DESCRIPTIONS (CON.) Output Voltage Adjustment (TRIM) (Not applicable to Q48SP120017Exxx) To increase or decrea se the output voltage set poi nt, connect an external resistor betwe en the TRIM pin and either the SENSE(+) or SENSE(-). The TRIM pi n should be left open if this feature is not used. Figure 17: Circuit ...

  • Delta Electronics Q48SP - page 10

    DS_Q48SP12017_05302 008 10 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. Convection cooling is usually the dominant mode of heat tran sfer. Hence, the choice of equipme nt ...

  • Delta Electronics Q48SP - page 11

    DS_Q48SP12017_05302 008 11 MECHANICAL DRAWING (W ITHOUT HEATSPERADER) Pin No. Name Function 1 2 3 4 5 6 7 8 9 -Vin CASE ON/OFF +Vin +Vout +SENSE TRIM -SENSE -Vout Negative input voltage Case ground pin Remote ON/OFF Positive input voltage Positive output voltage Positive remote sense Output voltage trim Negative remote sense Negative output voltage ...

  • Delta Electronics Q48SP - page 12

    DS_Q48SP12017_05302 008 12 Mechanical Drawing (FOR Q48SP12017Exxx) ...

  • Delta Electronics Q48SP - page 13

    DS_Q48SP12017_05302 008 13 MECHANICAL DRAWING (WITH HEATSPREADER) ...

  • Delta Electronics Q48SP - page 14

    DS_Q48SP12017_05302 008 14 PART NUMBERING SYSTEM Q 48 S P 120 17 N R F A Form Factor Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Length Option Code Q - Quarter Brick 48 - 36~75V S - Single P - 200W series 120 - 12V 18A N - Negative P - Positive E - Negative and no trim, no sense pins R - 0.170” N ...

Manufacturer Delta Electronics Category Power Supply

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A complete manual for the device Delta Electronics Q48SP, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Delta Electronics Q48SP by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Delta Electronics Q48SP.

A complete Delta Electronics manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Delta Electronics Q48SP - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Delta Electronics Q48SP, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Delta Electronics Q48SP, that we can find in the current document
3. Tips how to use the basic functions of the device Delta Electronics Q48SP - which should help us in our first steps of using Delta Electronics Q48SP
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Delta Electronics Q48SP
5. FAQ - Frequently Asked Questions
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