Instruction/ maintenance manual of the product Series E48SH Delta Electronics
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FEATURES High efficiency: 92.0% @3.3V/30A Size: 58.4mm x 22.8mm x9.5mm (2.30”x0.90”x0.37”) Industry standard pin out Fixed frequency operation Input UVLO, Output OTP , OCP , .
TECHNICAL SPECIFICA TIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal V out unless otherw ise noted.) PA R A M E T E R NOTES and CONDITIONS E48SH3R330 (St andard) Min.
E48SH3R330_0216200 7 3 ELECTRICAL CHARACTERISTICS CUR VES Figure 1: Efficiency vs. load current for minimum, nominal, 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.
ELECTRICAL CHARACTERISTICS CUR VES E48SH3R330_0216200 7 4 For Negative Remote On/Off Logic Figure 4: T urn-on transient at zero load current (5 ms/div). Vin=48V .T op T race: V out, 2V/div; Bottom T race: ON/OF F input, 2V/div Figure 5: T urn-on transient a t full ra ted load current (constant current load) (5 ms/div).
ELECTRICAL CHARACTERISTICS CUR VES E48SH3R330_0216200 7 5 Figure 8: Output voltage response to step-change in load current (75%-50% of Io, max; di/dt = 0.
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 , 2us/div).
DESIGN CONSIDERA TIONS Input Source Impedance The impedance of the input source co nnecting to the DC/DC powe r modules will interact with the modul es and affect the st ability .
FEA TURES DESCRIPTIONS Over-Current Protection The E48SH modules include an internal output over-current protection circuit, which will endure current limiting for an unlimited duration du ring output overload.
FEA TURES DESCRIPTIONS (CON.) Output V oltage Adjustment (TRIM) To increase or decrea se the output voltage set point, the modules may be connected wit h an external resistor betwee n the TRIM pin and either the SENSE(+) or SENSE(-). The TRIM pin should be left open if this feature is not used.
E48SH3R330_0216200 7 10 THERMAL CONSIDERA TIONS Thermal management is an importa nt part of the system design. To ensure prop er, reliable operation, sufficient 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.
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 - M O U N T T A P E & R E E L RECOMMENDED P AD LA YOUT (SMD) E48SH3R330_0216200 7 11.
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.
MECHANICAL DRA WING SURF ACE-MOUNT MODULE T H R O U G H - H O L E M O D U L E 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/O.
MECHANICAL DRA WING (WITH HEA TSPREADER) THROUGH-HOLE MODULE E48SH3R330_0216200 7 14.
E48SH3R330_0216200 7 15 P ART NUMBERING SYSTEM E 48 S H 3R3 30 N R F A T ype of Product Input V oltage Number of Output s Product Series Outp ut Vo l t a g e Output Current ON/OFF Logic Pin Length Option Code E- Eighth Brick 48-36V~75V S- Single H-50A series 3R3 - 3.
An important point after buying a device Delta Electronics Series E48SH (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 E48SH 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 E48SH - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Delta Electronics Series E48SH 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 E48SH will certainly help you make a decision on the purchase.
If you already are a holder of Delta Electronics Series E48SH, 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 E48SH.
However, one of the most important roles played by the user manual is to help in solving problems with Delta Electronics Series E48SH. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Delta Electronics Series E48SH 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
