Delta Electronics NC30 manual

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Table of contents for the manual

  • Page 1

    DATASHEET DS_NC1 2S30A _05222008 FEATURES  High efficiency: 94% @ 12Vin, 5V/30A out  V olt age and resistor-based trim  No minimum load required  Output voltage programmable from 0.9Vdc to 5.0Vdc via external resistors  Fixed frequency operation  Input UVLO, output OVP , OTP , OCP , SCP  Remote ON/OFF (default: positive)  Po[...]

  • Page 2

    DS_NC12S30A_0522200 8 2 TECHNICAL SPECIFICA TIONS (T A =25°C, airflow rate=400LFM, V in =12Vdc, nominal V out unle ss otherwise noted.) PA R A M E T E R NOTES and CONDITIONS NC12S0A0V30 Min. T yp . Max. Unit s ABSOLUTE MAXIMUM RA TINGS Input V oltage 14 Vdc Operating T emperature Refer to Figures 36 and 41 for the measuring poin t -40 125 °C S to[...]

  • Page 3

    DS_NC12S30A_0522200 8 3 ELECTRICAL CHARACTERISTICS CUR VES 0 10 20 30 40 50 60 70 80 90 100 0 2 4 6 8 1 01 21 4 1 61 82 02 22 4 2 62 83 0 O utpu t C urrent (A ) E fficie n cy (% ) 10. 2 12 13.8 0 10 20 30 40 50 60 70 80 90 100 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Outp ut Curre nt (A ) E fficie n cy (% ) 10. 2 12 13.8 Figure 1: Converter effic[...]

  • Page 4

    DS_NC12S30A_0522200 8 4 ELECTRICAL CHARACTERISTICS CUR VES (CON.) 0 20 40 60 80 100 120 0 2 4 6 8 1 01 21 4 1 61 82 02 22 4 2 62 83 0 O utput C ur r ent (A) E fficie n cy (% ) 10. 2 12 13. 8 Figure 7: Converter efficiency vs. output current (5.0V output voltage) Figure 8: Output ripple & noise at 12V in, 0.9V/30A out Figure 9: Output ripple &am[...]

  • Page 5

    DS_NC12S30A_0522200 8 5 ELECTRICAL CHARACTERISTICS CUR VES (CON.) Figure 13: Output ripple & noise at 12Vin, 3.3V/30A out Figure 14: Output ripple & noise at 12Vin, 5.0V/30A out Figure 15: T urn on delay time at Vin On/Of f, 0.9V/30A out Ch2:Vin Ch3:V out Ch4:PWRGD Figure 16: T urn on delay time at Remote On/Off, 0.9V/30A out Ch2:ENABLE Ch3[...]

  • Page 6

    DS_NC12S30A_0522200 8 6 ELECTRICAL CHARACTERISTICS CUR VES (CON.) Figure 19: T ypical transient respons e to step load change at 10A/ μ S from 75% to 50% of Io, max at 12Vin, 1.2V out (Cout = 1uF ceramic, 10 μ F tant alu m) Figure 20: T ypical transient respons e to step load change at 10A/ μ S from 75% to 50% of Io, max at 12Vin, 1.5V out (Cout[...]

  • Page 7

    DS_NC12S30A_0522200 8 7 FEA TURES DESCRIPTIONS ENABLE (On/Off) The ENABLE (on/of f) input allows external ci rcuitry to put the NC converter into a low power dissipation (sle ep) mode. Positive (active-high) ENABLE is availa ble as stan dard. Positive ENABLE (active-high) units of the NC series are turned on if the ENABLE pin is high or floating. P[...]

  • Page 8

    DS_NC12S30A_0522200 8 8 Over T emperature Protection (OTP) T o provid e additional over-temperature protection in a fault condition, the unit is equipped with a non-latch ing thermal shutd own circuit. The shutdown circuit engages when the temperature of monitored compone nt exceeds approximately 130 ℃ . The unit will cycle on and of f while the [...]

  • Page 9

    DS_NC12S30A_0522200 8 9 FEA TURES DESCRIPTIONS (CON.) Output V oltage Programming The output voltage of the NC serie s is trimmable by connecting an external resistor betwe en the trim pin and output ground as shown Figure 31 and the typical trim resistor values are shown in Figure 32. The output can also be set by an external v oltage co nnected t[...]

  • Page 10

    DS_NC12S30A_0522200 8 10 THERMAL CONSIDERA TI ON Thermal management is an important part of the system design. To ensure proper, reliable operation , sufficient cooling of the power module is need ed over the entire temperature rang e of the module. Convection cooling is usually the dominant mode of heat transfer. Hence, the choice of equipment to [...]

  • Page 11

    DS_NC12S30A_0522200 8 11 THERMAL CURVES (NC12S0A0V30) T est Section for NC12S0A0V30 MODULE A IR FLO W 19 (0.75”) 50.8 (2.0”) F ACING PWB PWB AIR VELOCIT Y AND AMBIENT TEMPERATURE MEASURED BELOW THE MODULE 38 (1.5”) Note: Wind T unnel T est Setup Figure Di mensions are in millimeters and (Inches) Figure 36: T emperature measurement locati on *[...]

  • Page 12

    DS_NC12S30A_0522200 8 12 THERMAL CURVES (NC12S0A0H30) T est Section for NC12S0A0H30 19 (0.75”) MODULE A IR FLOW 9.5 (0.38”) 50.8 (2.0”) FA C I N G P W B PWB AIR VELOCIT Y AND AMBIE NT TEMPERATURE MEASURED BELOW THE MODULE Note: Wind T unnel T est Setup Figure Di mensions are in millimeters and (Inches) Figure 41: T emperature measurement loca[...]

  • Page 13

    DS_NC12S30A_0522200 8 13 MECHANICAL DRA WING V E R T I C A L H O R I Z O N T A L[...]

  • Page 14

    DS_NC12S30A_0522200 8 14 Part Numbering System MODEL LIST Model Name Packaging Input V oltag e Output V oltage Output Current Efficiency 12Vin @ 100 % load NC12S0A0V30PNF A V ertical 10.2 ~ 13.8Vdc 0.9 V ~ 5.0Vdc 30A 94% (5.0V) NC12S0A0H30PNF A Horizontal 10.2 ~ 13.8Vdc 0.9 V ~ 5.0Vdc 30A 94% (5.0V) CONT ACT : www .delta.com.tw/dcd c USA: T elephon[...]