Instruction/ maintenance manual of the product E48SR12007 Delta Electronics
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DATASHEET DS_E48SR12007_05 222008 FEATURES High efficiency: 92.0% @ 12V/7A Size: 58.4mmx22.80mmx8.4mm (2.30”x0.90”x0.33”) S tandard footprint Industry standard pin out 2:1 In.
E48SR12007_0522200 8 2 TECHNICAL SPECIFICA TIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal V out u nless otherwise no ted.) PA R A M E T E R NOTES and CONDITIONS E48SR12007 (St andard) Min.
E48SR12007_0522200 8 3 ELECTRICAL CHARACTERISTICS CUR VES Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C, 300LFM airflow. Figure 2: Power dissipation vs. load current for mini mum, nominal, and max imum input voltage at 25°C, 300LFM airflow .
E48SR12007_0522200 8 4 ELECTRICAL CHARACTERISTICS CUR VES For Negative Remote On/Off Logic Figure 4: T urn-on transient at full ra ted load current (resi stor load) (2ms/div). Vin=48V . T op T race: V out, 5V/div; Bo ttom T race: ON/OFF input, 5V/div Figure 5: T urn-on tra nsient at zero load current (2ms/div).
E48SR12007_0522200 8 5 ELECTRICAL CHARACTERISTICS CUR VES Figure 8: Output voltage response to step-change in load current (75%-50%-75% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF t a ntalum capacitor and 1µF ceramic capacitor . T op T race: V out (0.
E48SR12007_0522200 8 6 ELECTRICAL CHARACTERISTICS CUR VES Figure 12: Input reflected ripple current, i s , through a 12µH source inductor at nominal input voltage an d rated load current (20 mA/div ,.
E48SR12007_0522200 8 7 DESIGN CONSIDERA TIONS Input Source Impedance The impedance of the input source connecting to the DC/DC power module s will interact with the modules and affect the st ability .
E48SR12007_0522200 8 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 overload. If the output current exceeds the OCP set point, the modul es will automatically shut down (hiccup mode).
E48SR12007_0522200 8 9 FEA TURES DESCRIPTIONS (CON.) Output V oltage Adjustment (TRIM) To increase or decrease t he output voltage set point, the modules may be conne cted with an external resisto r between the TRIM pin and either the SENSE(+) or SENSE(-).
E48SR12007_0522200 8 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.
E48SR12007_0522200 8 11 P I C K A N D P L A C E L O C A T I O N S U R F A C E - MOUNT T APE & REEL RECOMMENDED P AD LA YOUT (SMD).
E48SR12007_0522200 8 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.
E48SR12007_0522200 8 13 MECHANICAL DRA WING (WIT HOUT HEA TSPREADER) 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 Po.
E48SR12007_0522200 8 14 MECHANICAL DRA WING (WITH HEA TSPREADER) THROUGH-HOLE MODULE.
E48SR12007_0522200 8 15 P ART NUMBERING SYSTEM E 48 S R 120 07 N R F A T ype of Product Input V olt age Number of Output s Product Series Output V olt age Output Current ON/OFF Logic Pin Length Option Code E- Eighth Brick 48V S- Single R- Regular 120-12V 07- 7A N- Negative (Default) P- Positive R - 0.
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If you already are a holder of Delta Electronics E48SR12007, 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 E48SR12007.
However, one of the most important roles played by the user manual is to help in solving problems with Delta Electronics E48SR12007. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Delta Electronics E48SR12007 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
