Instruction/ maintenance manual of the product 20A Delta Electronics
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Delphi NE Series Non-Isolated Point of Load DC/DC Modules: 4.5V~13.8V in, 0.59V~5.1V out, 20A The Delphi NE 20A Series, 4.5 to 13.8V wide input, wide trim single output, non-isolated point of load DC/DC converters are the latest offering from a world leader in po wer systems techn ology and manufacturing — Delt a Electronics, Inc.
Preliminary DS_NE1 2S20A_07272007 2 TECHNICAL SPECIFICA TIONS (Ambient T emperature=25°C, m inimum airflow=200LFM, nominal V in =12Vdc unless ot herwise specified.) PA R A M E T E R NOTES and CONDITIONS NE12S0A0V/H20 Min. T yp. Max. Units ABSOLUTE MAXIMUM RA TINGS Input V oltage operation 4.
Preliminary DS_NE1 2S20A_07272007 3 ELECTRICAL CHARACTERISTICS CUR VES 55 60 65 70 75 80 85 90 95 1 2 4 6 8 1 01 21 41 61 82 0 Output current (A) Efficiency (%) 55 60 65 70 75 80 85 90 95 1 2 4 6 8 10 12 14 16 18 20 Output current (A) Efficiency (%) Figure 1: Converter efficiency vs.
Preliminary DS_NE1 2S20A_07272007 4 ELECTRICAL CHARACTERISTICS CUR VES (CON.) Figure 7: Output ripple & noise at 12Vin, 0.59V/20A out Figure 8: Output ripple & noise at 12V in, 0.9V/20A out Figure 9: Output ripple & noise at 12V in, 1.5V/20A out Figure 10: Output ripple & noise at 12Vin, 2.
Preliminary DS_NE1 2S20A_07272007 5 ELECTRICAL CHARACTERISTICS CUR VES (CON.) Figure 13: T urn on delay time at 12Vin, 0.59V/20A out Ch1: Vin, Ch4: V out Figure 14: T urn on delay time Remote On/Off, 2.5V/20A out Ch1: Enable, Ch4: V out Figure 15: T urn on delay time at 12Vin, 3.
Preliminary DS_NE1 2S20A_07272007 6 DESIGN CONSIDERA TIONS The NE12S0A0V(H)20 uses a single phase and volt age mode controlled buck topology . The output can be trimmed in the range of 0.59Vdc to 5.1Vdc by a resisto r from T rim pin to Ground. The converter can be turned ON/OFF by remote control with positive on/of f (ENABLE pin) logic.
Preliminary DS_NE1 2S20A_07272007 7 Output V oltage Programming The output voltage of the NE series is trimmable by connecting an external resistor betwe en the trim pin and output ground as shown Figure 21 and the typical trim resistor values are sho wn in T able 1.
Preliminary DS_NE1 2S20A_07272007 8 Vin Vou t Enable Ground Ground Tr i m N Figure 22: Circuit configuration for output voltage margining Paralleling NE20 converters do not have built-in current sharing (paralleling) ability. Hence, paralleling of multiple NE20 converter is not recommended.
Preliminary DS_NE1 2S20A_07272007 9 THERMAL CONSIDERA TION 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.
Preliminary DS_NE1 2S20A_07272007 10 THERMAL CURVES (NE12S0A0V20) NE12S0A 0V20(standard) Output Current vs. Ambient Tem perature and Air Velocity @Vin=5.
Preliminary DS_NE1 2S20A_07272007 11 VERTICAL HORIZONT AL MECHANICAL DRA WING.
Preliminary DS_NE1 2S20A_07272007 12 P ART NUMBERING SYSTEM MODEL LIST NE 12 S 0A0 V 20 P N F A Product Series Input V o ltage Number of output s Output V oltag e Mounting Output Current ON/OFF Logic Pin Length Option Code NE- Non-isolated Series 12- 4.
An important point after buying a device Delta Electronics 20A (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 20A 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 20A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Delta Electronics 20A you will learn all the available features of the product, as well as information on its operation. The information that you get Delta Electronics 20A will certainly help you make a decision on the purchase.
If you already are a holder of Delta Electronics 20A, 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 20A.
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