Instruction/ maintenance manual of the product Series S48SA Delta Electronics
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DA T ASHEET DS_S48SA1R812_06 012006 Delta Electronics, Inc. Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.8V/12A out The Delphi Series S48SA, surface mountable, 48V input, single output, isolated DC/DC converter is the latest offeri ng from a world leader in power system and technology and manu facturing – Delta Electronics, Inc.
DS_S48SA1R812_06012 006 TECHNICAL SPECIFICATIONS (T A =25°C, airflow rate=300 LFM, V in =48Vdc, nominal Vou t unless otherwise noted.) PARAMETER NOTES and CONDITIONS S48SA1R812NRFA Min.
DS_S48SA1R812_06012 006 ELECTRICAL CHARACTERISTICS CURVES 55 60 65 70 75 80 85 90 95 12 345 67 89 1 0 1 1 1 2 O U TPU T C U R R E N T (A ) E FFICIE NCY ( % ) 36Vin 48Vin 75Vin 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 123456 789 1 0 1 1 1 2 O UT PUT CU RRE NT (A ) P O WE R DIS S IP A TIO N ( W) 36Vin 48Vin 75Vin Figure 1: Efficiency vs.
DS_S48SA1R812_06012 006 4 ELECTRICAL CHARACTERISTICS CURVES Figure5 : Turn-on transie nt at zero load current (1 ms/div). Top Trace: Vout (500mV/div); Bottom Trace: ON/OFF Control (5V/div). Figure 6: Output voltage response to step-change in load current (50%-75% of Io, max; di/dt = 0.
DS_S48SA1R812_06012 006 ELECTRICAL CHARACTERISTICS CURVES Strip Copper Vo(-) Vo(+) 10u 1u SCOPE RESISTIV E LOAD Figure 9 : Input Reflected Ripple Current, i s , at full rated output current and nominal i nput voltage with 12 µ H source impedance and 33 µ F electrolytic capacito r (2 mA/div).
DS_S48SA1R812_06012 006 This power module is not internally fused. To a chieve optimum safety and system protection, an input line fuse is highly recommended. T he safety agencies require a normal-blow fuse with 3A maximum rating to be installed in the ungrounded le ad.
DS_S48SA1R812_06012 006 Vo(+) Vi(+) Vo(-) Sense(-) Sense(+) Vi(-) ON/OFF Figure 13: Remote on/off implementation Remote Sense (Optional) Remote sense compensates for voltage drop s on the output by sensing the actual output voltage at the p oint of load.
DS_S48SA1R812_06012 006 [] ΚΩ − ∆ = − 104 % Vo up − ∆ + 1089 %) 100 ( 8 . 23 Vo Ex. When trim-up +10% (1.8V X 1.1 = 1.98V) Rtrim [] ΚΩ = − = − 9 .
DS_S48SA1R812_06012 006 9 THERMAL CONSIDERATIONS Thermal management is an im porta nt part of the system design. To ensure proper, reliable operation, sufficie nt cooling of the power module is neede d over the entire temperature range of the modul e.
DS_S48SA1R812_06012 006 10 PICK AND PLACE LOCATION SURFAC E-MOUNT TAPE & REEL RECOMMENDED PAD LAYOUT (SMD).
DS_S48SA1R812_06012 006 Temp . Time 150 ℃ 200 ℃ 100~140 sec. T ime Limited 9 0 sec. above 217 ℃ 217 ℃ Preheat time Ramp up max. 3 ℃ /sec. Ramp down max. 4 ℃ /s ec. Peak Tem p . 240 ~ 245 ℃ 25 ℃ Note: The temperature refers to the pin of S48SA, measured on the pin +Vout joint.
DS_S48SA1R812_06012 006 MECHANICAL DRAWING SMD Through-Hole Pin No. Name Function 1 +Vout Positive output voltage 2 -Vout Negative output voltage 6 Trim Output voltage trim 8 ON/OFF ON/OFF logic 11 -V.
DS_S48SA1R812_06012 006 14 PART NUMBERING SYSTEM S 48 S A 1R8 12 N R F A* Form Factor Input Voltage Number of Outputs Product Series Output Voltage Output Current ON/OFF Logic Pin Type Option Code S- Small Power 48V S- Single A- Advanced 1R2-1.2V 1R5-1.
An important point after buying a device Delta Electronics Series S48SA (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 S48SA 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 S48SA - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Delta Electronics Series S48SA 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 S48SA will certainly help you make a decision on the purchase.
If you already are a holder of Delta Electronics Series S48SA, 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 S48SA.
However, one of the most important roles played by the user manual is to help in solving problems with Delta Electronics Series S48SA. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Delta Electronics Series S48SA 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
