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Delta Electronics Series V48SR manual

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Table of contents for the manual

  • Page 1

    FEATURES  High efficiency: 90.5% @ 15V/4.4A  Size: 33.0 x 22.9 x 9.5 mm (1.30”x0.90”x0.37”)  Industry standard footprint and pinout  Fixed frequency operation  SMD and through-hole versions  Input UVLO and OVP  OTP and output OCP , OVP  Output voltage trim: -15% , +10%  Monotonic startup into normal and pre-biased l[...]

  • Page 2

    DS_V48SR15004_061 22007 2 TECHNICAL SPECIFICA TIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal V ou t u nless otherwise no ted.) PA R A M E T E R NOTES and CONDITIONS V48SR15004 (St andard) Min. T y p. Max. Unit s ABSOLUTE MAXIMUM RA TINGS Input V oltage Continuous 80 Vdc T ransient (100ms) 100ms 100 Vdc Operating T emperature Refer to[...]

  • Page 3

    DS_V48SR15004_061 22007 3 ELECTRICAL CHARACTERISTICS CUR VES Figure 1: Ef ficiency vs. load current for minimum, nomina l, and maximum in put voltage at 25°C Figure 2: Power dissipation vs. load current for min imum, nominal, and max i mum input voltage at 25°C. Figure 3: T ypical full load input charac teristics at room temperature[...]

  • Page 4

    DS_V48SR15004_061 22007 4 ELECTRICAL CHARACTERISTICS CUR VES For Negative Remote On/Off Logic Figure 4: T urn-on transient at full rated load current (resistive load) (5 ms/div). Vin=48V . T op T race: V out, 5.0V/div; Bottom T race: ON/OFF input, 2V/div Figure 5: T urn-on transient at zero load current (5 ms/div). Vin=48V . T op T race: V out: 5. [...]

  • Page 5

    DS_V48SR15004_061 22007 5 ELECTRICAL CHARACTERISTICS CUR VES Figure 10: T est set-up diagram showing measur ement points for Input T ermi nal Ripple Current and Input Reflected Ripple Current. Note: Measured input reflected-ripple c urrent with a simulated source Inductance (L TEST ) of 12 µ H. Cap acitor Cs offset possible battery imped ance. Mea[...]

  • Page 6

    DS_V48SR15004_061 22007 6 EMC T est Result T est re sult is in complian ce with EN55022 cla ss B as shown be low . Average mo de, @ Vi n = 48V , Iout=4.4A DESIGN CONSIDERA TIONS Input Source Impedance The impedance of the input source connecting to the DC/DC power modules will intera ct with the modules and affect the st ability . A low ac-impedanc[...]

  • Page 7

    DS_V48SR15004_061 22007 7 Soldering and Cleaning Considerations Post solder cleaning i s usually the final board assembl y process before the boa rd or system undergoes electri cal testing. Inadequate cleaning and/or drying may lower the reliability of a power module and severely af fect the finished circuit board assembly test. Adequat e cleaning [...]

  • Page 8

    DS_V48SR15004_061 22007 8 FEA TURES 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 overlo ad. If the output current exceeds the OCP set point, the modules will automatically shut down, and enter hi ccup mode or la[...]

  • Page 9

    DS_V48SR15004_061 22007 9 Figure 19: Circuit configuration for trim-up (increase output voltage) If the external resistor is connected bet ween the TRIM and SENSE (+) the output voltage set point increase s (Fig. 19). The external resi stor value required to obt ain a percentage output voltage change △ % is defined as: () Ω − ∆ − ∆ ∆ [...]

  • Page 10

    DS_V48SR15004_061 22007 10 THERMAL CONSIDERA TIONS Thermal management is an importa nt part of the system design. To ensure prop er, reliable operation, suffici ent cooling of the power mod ule is needed over the entire temperature range of the modul e. Convection coolin g is usually the dominant mode of heat transfer. Hence, the choice of equipmen[...]

  • Page 11

    DS_V48SR15004_061 22007 11 P I C K A N D P L A C E L O C A T I O N RECOMMENDED P AD LA YOUT (SMD) SURF ACE-MOUNT T APE & REEL[...]

  • Page 12

    DS_V48SR15004_061 22007 12 LEADED (Sn/Pb) PROCESS RECOMMEND TEMP . PROFILE T ime ( sec. ) Pre-h eat tem p. 140~180 ° C 60~120 sec. Peak tem p. 210~230 ° C 5sec . Ramp-up te mp. 0.5~3.0 ° C /sec . T emperature ( ° C ) 50 100 150 200 250 300 60 0 120 180 240 2nd Ramp-up temp. 1.0~3.0 ° C /sec. Over 200 ° C 40~50sec. Cooling down ra te <3 ° [...]

  • Page 13

    DS_V48SR15004_061 22007 13 MECHANICAL DRA WING Surface-mount module Through-hole module Pin No. Name Function 1 2 3 4 5 6 7 8 +Vin ON/OFF -Vin -V out -SENSE TRIM +SENSE +V out Positive input voltage Remote ON/OFF Negative input voltage Negative output voltage Negative remote sense Output voltage trim Positive remote sense Positive output voltage[...]

  • Page 14

    DS_V48SR15004_061 22007 14 P ART NUMBERING SYSTEM V 48 S R 150 04 N R F A T ype of Product Input V olt age Number of Output s Product Series Output Vo l t a g e Output Current ON/OFF Logic Pin Length/T ype Option Co de V - 1/16 brick 48V S - Single R - Regular 150 - 15V 04 - 4A N- Nega tive (Default) P- Positive R - 0.170” (Default) N - 0.145” [...]