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Delphi NE Series Non-Isolated Point of Load 

DC/DC Modules: 

4.5V~13.8Vin, 0.59V~5.1Vout, 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 power systems technology and 
manufacturing 

  Delta Electronics, Inc. The ND/NE product family is 

the second generation, non-isolated point-of-load DC/DC power 
modules for the datacom applications which cut the module size by 
almost 50% in most of the cases compared to the first generation NC 
series POL modules. The product family here provides 20A of output 
current in a vertically or horizontally mounted through-hole package 
and the output can be resistor trimmed from 0.59Vdc to 5.1Vdc. It 
provides a very cost effective, high efficiency, and high density point 
of load solution. With creative design technology and optimization of 
component placement, these converters possess outstanding 
electrical and thermal performance, as well as extremely high 
reliability under highly stressful operating conditions. 

 

OPTIONS

 

 

Vertical or horizontal versions 

APPLICATIONS 

 

DataCom 

 

Distributed power architectures 

 

Servers and workstations 

 

LAN/WAN applications 

 

Data processing applications

 

FEATURES 

 

High Efficiency: 

94.0% @ 12Vin, 5V/20A out 

 

Size:  

Vertical: 30.5x15.5x12.0mm 

(1.20”x0.61”x0.47”) 

Horizontal: 30.5x15.5x12.9mm 

(1.20”x0.61”x0.51”) 

 

Wide input range: 4.5V~13.8V 

 

Output voltage programmable from        

0.59Vdc to 5.1Vdc via external resistors 

 

Voltage and resistor-based trim   

 

No minimum load required 

 

Fixed frequency operation 

 

Input UVLO, output OCP 

 

Remote ON/OFF (Positive) 

 

ISO 9001, TL 9000, ISO 14001, QS9000, 

OHSAS18001 certified manufacturing facility

 

UL/cUL 60950 (US & Canada), TUV 

(EN60950) --pending

 

 

PRELIMINARY DATASHEET 
DS_NE12S20A_072722007 

Summary of Contents for 0.59V~5.1Vout

Page 1: ...fficiency and high density point of load solution With creative design technology and optimization of component placement these converters possess outstanding electrical and thermal performance as well as extremely high reliability under highly stressful operating conditions OPTIONS Vertical or horizontal versions APPLICATIONS DataCom Distributed power architectures Servers and workstations LAN WA...

Page 2: ...ature regulation and set point 2 0 2 0 Vo Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth Peak to Peak Full Load 10uF Tan cap 12Vin 5Vo 20 mV RMS Full Load 10uF Tan cap 12Vin 5Vo 5 mV Output Current Range 0 20 A Output Voltage Under shoot at Power Off Vin 12V Turn OFF 100 mV Output short circuit current RMS value Continuous 3 6 A Output DC Current Limit Inception Hiccup mode 110 200 Iomax D...

Page 3: ...5 1 2 4 6 8 10 12 14 16 18 20 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 3 Converter efficiency vs output current 1 5V output voltage 12V input Figure 4 Converter efficiency vs output current 2 5V output voltage 12V input 55 60 65 70 75 80 85 90 95 1 2 4 6 8 10 12 14 16 18 20 Output current A Efficiency 55 60 65 70 75 80 85...

Page 4: ...ipple noise at 12Vin 0 59V 20A out Figure 8 Output ripple noise at 12Vin 0 9V 20A out Figure 9 Output ripple noise at 12Vin 1 5V 20A out Figure 10 Output ripple noise at 12Vin 2 5V 20A out Figure 11 Output ripple noise at 12Vin 3 3V 20A out Figure 12 Output ripple noise at 12Vin 5 0V 20A out ...

Page 5: ...t Figure 14 Turn on delay time Remote On Off 2 5V 20A out Ch1 Enable Ch4 Vout Figure 15 Turn on delay time at 12Vin 3 3V 20A out Ch1 Vin Ch4 Vout Figure 16 Turn on delay time at Remote On Off 5 0V 20A out Ch1 Enable Ch4 Vout Figure 17 Typical transient response to step load change at 5A µS from 75 100 load at 12Vin 2 5V out 0 0 0 0 0 0 0 0 ...

Page 6: ...n the input line for safety The output voltage set point and the output current in the application could define the amperage rating of the fuse FEATURES DESCRIPTIONS Enable On Off The ENABLE on off input allows external circuitry to put the NE converter into a low power dissipation sleep mode Positive ENABLE is available as standard With the active high function the output is guaranteed to turn on...

Page 7: ...t occurs between 3 3V to 4 3V Over Current and Short Circuit Protection The NE series modules have non latching over current and short circuit protection circuitry When over current condition occurs the module goes into the non latching hiccup mode When the over current condition is removed the module will resume normal operation An over current condition is detected by measuring the voltage drop ...

Page 8: ...re 22 shows the circuit configuration for output voltage margining adjustment Vt Voltage Margining Adjustment FEATURES DESCRIPTIONS CON Output Capacitance There is internal output capacitor on the NE series modules Hence no external output capacitor is required for stable operation Reflected Ripple Current and Output Ripple and Noise Measurement The measurement set up outlined in Figure 23 has bee...

Page 9: ...5 60 65 70 75 80 85 Natural Convection 100LFM 200LFM Ambient Temperature Output Current A 500LFM 400LFM 600LFM 300LFM Thermal Testing Setup Delta s DC DC power modules are characterized in heated vertical wind tunnels that simulate the thermal environments encountered in most electronics equipment This type of equipment commonly uses vertically mounted circuit cards in cabinet racks in which the p...

Page 10: ...rature and Air Velocity Vin 12V Vout 0 9V Through PWB Orientation 0 2 4 6 8 10 12 14 16 18 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Natural Convection 100LFM 200LFM Ambient Temperature Output Current A 500LFM 400LFM 300LFM Figure 29 Output current vs ambient temperature and air velocity Vin 12V Vout 0 9V Through PWB Orientation NE12S0A0V20 standard Output Current vs Ambient Temperature and Air Ve...

Page 11: ...Preliminary DS_NE12S20A_07272007 11 VERTICAL HORIZONTAL MECHANICAL DRAWING ...

Page 12: ... dcdc USA Telephone East Coast 888 335 8201 West Coast 888 335 8208 Fax 978 656 3964 Email DCDC delta corp com Europe Telephone 41 31 998 53 11 Fax 41 31 998 53 53 Email DCDC delta es tw Asia the rest of world Telephone 886 3 4526107 ext 6220 Fax 886 3 4513485 Email DCDC delta com tw WARRANTY Delta offers a two 2 year limited warranty Complete warranty information is listed on our web site or is a...

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