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da ta sheet d s _ n e 12s 06a_ 0 5202013 features ? high efficiency: 9 4 .5 % @ 12 vin , 5 v/ 6 a out ? size: vertical : 1 0.4mm x 1 6.5mm x 11.0 mm ( 0. 41 0. 65 0. 43 ) horizontal: 1 0.4mm x 1 6.5mm x 11. 5 mm ( 0. 41 0. 65 0. 4 5 ) ? wide input range: 3.1v~1 3.8v ? output voltage programmable from 0. 5 9vdc to 5 . 1 vdc via external resistors ? no minimum load required ? fixed frequency operation ? input uvlo , output ocp ? remote on/off (positive , 5 pin version ) ? iso 900 1 , tl 9000, iso 14001, qs9000, ohsas18001 certif ied manufacturing facility ? ul/cul 60950 - 1 (us & canada) recognized applications ? datacom ? distributed power architectures ? servers and work stations ? lan/wan applications ? data processing application s options ? vertical or horizontal versions delphi ne series non - isolated point of load dc/dc modules: 3.1~13.8vin, 0.59 v - 5. 1 vout, 6 aout the delphi ne 6a series, 3.1~13.8 v wide input, wide trim single o utput , non - isolated point of load (pol) dc/dc converters are the latest offering from a world leader in power systems technology and manufacturing delta electronics, inc. the ne product family is the second generation, non - isolated point - of - load dc/dc po wer modules which cut the module size by almost 50% in most of the cases compared to the first generation nc series pol modules. the ne 6a product family provides an ultra wide input range to support 3.3v, 5v, 8v, 9.6v, and 12v bus voltage point - of - load ap plications and it offers up to 6 a of output current in a vertically or horizontally mounted through - hole miniature package and the output can be resistor trimmed from 0. 5 9vdc to 5 . 1 vdc. it provides a very cost effective, high efficiency, and high density p oint of load solution. with c reative 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.
ds_n e 12s06a_ 0 5202013 2 technical specificat ions (ambient temperature=25c, min imum airflow=200lfm, nominal v in =12vdc unless otherwise specified .) parameter notes and conditions n e 12s 0a0v/h 06 min. typ. max. units absolute maximum ratings input voltage 3.1 13. 8 vdc operating temperature (vertical) refer to fig. 2 6 for the measuring point - 40 113 c operating temperature (horizontal) refer to fig. 34 for the measuring point - 40 118 c storage temperature - 55 12 5 c input characteristics operating input voltage vo Q vin - 0.5v 3.1 13.8 v input under - voltage lockout turn - on voltage threshold 3.1 v turn - off voltage threshold 2.8 v lockout hysteresis voltage 0.3 v maximum input current vin=3.1v to 13.8v, io=io,max 6 a no - load input current vin=12v, vout=5v 50 ma off converter input current remote off 10 ma input reflected - ripple current 5 10 ma input ripple rejection 120hz 60 db output characteristics output voltage adjustment range 0. 5 9 5 . 1 v output voltage set point with a 0.1% trim resistor - 1 +1 % output voltage regulation over load io=io_min to io_max 0.3 0.5 % over line vin=vin_min to vin_max 0.1 0.2 % over temperature ta=0~70c 0.2 0.3 total output range over load, line, temperature regulation and set point - 2 +2 % output voltage ripple and noise 5hz to 20mhz bandwidth peak - to - peak full load, 10uf tan cap , 12vin, 0.5vo 15 mv peak - to - peak full load, 10uf tan cap , 12vin, 0.9vo 20 mv peak - to - peak full load, 10uf tan cap , 12vin, 2.5vo 30 mv peak - to - peak full load, 10uf tan cap , 12vin, 5vo 50 mv rms full load, 10uf tan cap, 12vin, 5vo 10 mv output current range 0 6 a output voltage over - shoot at start - up vin=12v, turn on 0.5 %vo output voltage under - shoot at power - off vin=12v, turn off 100 mv output dc current - limit inception hiccup mode 13.5 a output short - circuit current rms value 3.7 arms dynamic characteristics output dynamic load response 12vin, 2.5vout, 10f ceramic cap positive step change in output current 50~100% load , 10a/us 150 mv negative step change in output current 50~100% load , 10a/us 150 mv settling time settling to be within regulation band (to 10% vo deviation) 50 s turn - on transient start - up time, from on/off control fro m enable high to 90% of vo 2 3 ms start - up time, from input power from vin=12v to 90% of vo 2 3 ms minimum output capacitive load 0 f maximum output startup capacitive load turn on overshoot <1% vo ,esr 1m ? 1000 f efficiency vo= 0.59 v vin =12v, io= 6 a 7 2 % vo= 0.9v vin=12v, io= 6 a 7 9 % vo= 2.5 v vin=12v, io= 6 a 90.5 % vo= 5.0 v vin=12v, io= 6 a 9 4.5 % sink efficiency vo= 5.0 v vin=12v, io= 6 a 92 % feature characteristics switching frequency f ixed 6 00 khz on/off control posi tive logic (internally pulled high ) logic high module on (or leave the pin open) 0.8 5.0 v logic low module off 0 0.3 v general specifications calculated mtbf ta=25 , 2 00lfm, 80% load 18.0 m hours weight 2 grams
ds_n e 12s06a_ 0 5202013 3 electrical character istics curve figure 1: converter efficiency vs. output current (0.59v output voltage, 12v input voltage) figure 2: converter efficiency vs. output current (0.9v output voltage, 12v input voltage) figure 3: c onverter efficiency vs. output current ( 1.8 v output voltage, 12v input voltage) figure 4: converter efficiency vs. output current ( 2.5 v output voltage, 12v input voltage) figure 5 : converter efficiency vs. output current ( 3.3 v output voltage, 12v i nput voltage) figure 6 : converter efficiency vs. output current ( 5.0 v output voltage, 12v input voltage)
ds_n e 12s06a_ 0 5202013 4 electrical character istics curves (con.) figure 7 : output ripple & noise at 12vin, 0.59v/ 6 a out figure 8 : output ripple & noise at 12vin, 0. 9v/ 6 a out figure 9 : output ripple & noise at 12vin, 1.8 v/ 6 a out figure 10 : output ripple & noise at 12vin, 2.5 v/ 6 a out figure 1 1 : output ripple & noise at 12vin, 3.3 v/ 6 a out figure 1 2 : output ripple & noise at 12vin, 5.0 v/ 6 a out
ds_n e 12s06a_ 0 5202013 5 electri cal characteristics curves (con.) figure 1 3 : turn on delay time at 12vin, 1.0v/ 6 a out ch 1 : vin ch4: vout figure 1 4 : turn on delay time remote on/off , 1.5v/ 6 a out ch 1 : enable ch4: vout figure 1 5 : turn on delay time at 12vin, 2.5v/ 6 a out ch 1 : vin ch4: vout figure 1 6 : turn on delay time at remote on/off, 3.3v/ 6 a out ch 1 : enable ch4: vout figure 1 7 : typical transient response to step load change at 1 0 a/s from 50%~100% load, at 12vin, 2.5v out 0 0 0 0 0 0 0 0 0 0
ds_n e 12s06a_ 0 5202013 6 design consideration s t he n e 12s0a0v(h)06 uses a single phase and voltage mode controlled buck topology. the output can be trimmed from 0. 5 9vdc to 5 . 1 vdc by a resistor from trim pin to ground. the converter can be turned on/off by remote control wit h positive on/off ( enable pin ) logic . t he converter dc output is disabled when the signal is driven low (below 0.3v) . this pin is also used as the input turn on threshold judgment. its voltage is percent of input voltage during floating due to internal con nection. so we do not suggest using an active high signal (higher than 0.8v) to turn on the module because this high level voltage will disable uvlo function. the module will turn on when this pin is floating and the input voltage is higher than the thresh old. the converter can protect itself by entering hiccup mode against over current and short circuit condition. also, the converter will shut down when an over voltage protection is detected. safety considerations it is recommend ed that the user to pro vide a very fast - acting type fuse in 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 description s e nable (on/off) the enable (on/off) input allows external circuitry to put the n e converter into a low power dissipation ( sleep ) mode. posit ive enable is available as standard. with the active high function, the output is guaranteed to turn on if the enable pin is driven above 0.8v. the output will turn off if the enable pin voltage is pulled below 0.3v. undervoltage lockout the enable pin i s also used as input uvlo function. leaving the enable floating, the module will turn on if the input voltage is higher than the turn - on threshold and turn off if the input voltage is lower than the turn - off threshold. the d efault turn - on voltage is 3.1v w ith 300mv hysteresis. the turn - on voltage may be adjusted with a resistor placed between the enable pin and ground pin. the equation for calculating the value of this resistor is: is the turn - off threshold is the turn - on threshold r (kohm) is the outen resistor connected from enable pin to the gnd fig. 18 . uvlo setting an active high voltage will disable the input uvlo functi on. ? ? 8 . 0 34 . 6 34 . 6 05 . 15 _ ? ? ? ? ? r r v rth en v v v rth en fth en 3 . 0 _ _ ? ? fth en v _ rth en v _ ne10a/6a r enable
ds_n e 12s06a_ 0 5202013 7 features description s (con.) the enable in put can be driven in a variety of ways as shown in figures 1 8 and 1 9 . if the enable signal comes from the primary side of the circuit, the enable can be driven through either a bipolar signal transistor (figure 19 ).if the enable signal comes from the secon dary side, then an opto - coupler or other isolation devices must be used to bring the signal across the voltage isolation (please see figure 20 ). figure 19: enable input drive circuit for n e series figure 20 : enable input drive circuit example with isol ation . input under - voltage lockout the input under - voltage lockout prevents the converter from being damaged while operating when the input voltage is too low. the lockout occurs between 2.8 v to 3.1 v. over - current and short - circuit protection the ne se ries 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 across the mosfets. the voltage drop across the mosfet is also a function of the mosfets output voltage pro gramming the output voltage of the n e series is trimmable by connecting an external resistor between the trim pin and output ground as shown figure 2 1 and the typical trim resistor values are shown in figure 2 2 . figure 2 1: trimming output voltage the ne 06 module has a trim range of 0.59v to 5.0 v. the trim resistor equation for the ne 06 a is : vout is the output voltage setpoint rs is the resistance between trim and ground rs values should not be less than 24 0 output voltage rs () 0.59v open +1 v 2. 9 k +1.5 v 1.3k +2.5 v 619 +3.3 v 436 +5.0v 268 figure 22 : typical trim resistor values ne6a/10a ne6a/10a ne6a/10a n d 6a/ 1 0a vout ground trim enable ground vin ground ground n d 6a/10a vin vout trim enable vin vout enable ground ground trim nd 6 a/ 1 0a rs 592 . 0 1184 ) ( ? ? ? vout rs
ds_n e 12s06a_ 0 5202013 8 output capacitance there is internal output capacitor on the n e series modules. hence , no external output capacitor is required for stable operation. reflected ripple current and output ripple and noise m easurement the measurement set - up outlined in figure 2 4 has been used for both input reflected/ terminal ripple current and output voltage ripple and noise measurements on n e series converters. cs=270 f *1, ltest= 2u h, cin=270 f *1 figure 24: input reflected ripple/ capacitor ripple current and output voltage ripple and noise measurement setup for n e 06 features description s (con.) voltage margin ing adjustment output voltage margin adjusting can be implemented in the ne modu les by connecting a resistor, r margin - up , from the trim pin to the ground for margining up the output voltage. also, the output voltage can be adjusted lower by connecting a resistor, r margin - down , from the trim pin to the voltage source vt. figure 2 3 show s the circuit configuration for output v olta ge margin ing adjustment. vt figure 23 : circuit configuration for output voltage margining paralleling ne06 converters do not have built - in current sharing (paralleling) ability. hence, p arallel ing of multiple ne 06 converters is not recommended. ne6a/10a dc - dc converter 1 u f ceramic tan 1 0 u f vin+ load ltest cs cin output voltage ripple noise measurement point input reflected current measurement point vin vout enable ground ground trim nd 6 a/ 10 a rmargin - down rs rmargin - up
ds_n e 12s06a_ 0 5202013 9 t hermal curves ( vertical) figure 26 : temperature measurement location * the allowed maximum hot sp ot temperature is defined at 113 figure 27: output current vs. ambient temperature and air velocity @vin=12v, vout=0.9 v ( either orientation) figure 2 8 : output current vs. ambient temperature and air velocity @vin=12v, vout=2.5 v ( either orientatio n) thermal consideratio n thermal management is an important part of the system design. to ensure proper, reliable operation, sufficient cooling of the power module is needed over th e entire temperature range of the module. convection cooling is usually the dominant mode of heat transfer. hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel. thermal testing setup deltas 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 power modu les are mounted. the following figure shows the wind tunnel characterization setup. the power module is mounted on a test pwb and is vertically positioned within the wind tunnel. the space between the neighboring pwb and the top of the power module is con stantly kept at 6.35mm (0.25). thermal derating heat can be removed by increasing airflow over the module. to enhance system reliability, the power module should always be operated below the maximum operating temperature. if the temperature exceeds the maximum module temperature, reliability of the unit may be affected. note: wind t unnel t est s etup figure d imensions are in millimeters and (inches) figure 25: wind tunnel test setup ne12s0a0v06(standard) output current vs. ambient temperature and air velocity @vin=12v vout=0.9v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 natural convection 200lfm output current (a) ambient temperature ( ) 300lfm 400lfm 100lfm ne12s0a0v06(standard) output current vs. ambient temperature and air velocity @vin=12v vout=2.5v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 natural convection 300lfm output current (a) ambient temperature ( ) 400lfm 500lfm 100lfm 200lfm module air flow 11 (0.43) 50.8 (2.0) facing pwb pwb air velocity and ambient temperature measured below the module 22 ( 0.87 )
ds_n e 12s06a_ 0 5202013 10 t hermal curves ( vertical ) figure 29 : output current vs. ambient temperature and air velocity @vin=12v, vout=5.0 v ( either orientation) figure 30: output current vs. a mbient temperature and air velocity@ vin =5v, vout=0.9v ( either orientation) figure 31 : output current vs. ambient temperature and air velocity@ vin =5v, vout=2.5v ( either orientation) figure 32 : output current vs. ambient temperature and air ve locity @vin=3.3v, vout=0.9 v ( either orientation) figure 33: output current vs. ambient temperature and air velocity@ vin =3.3v, vout=2.5v ( either orientation) ne12s0a0v06(standard) output current vs. ambient temperature and air velocity @vin=12v vout=5.0v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 natural convection 300lfm output current (a) ambient temperature ( ) 400lfm 600lfm 100lfm 200lfm 500lfm ne12s0a0v06(standard) output current vs. ambient temperature and air velocity @vin=5.0v vout=0.9v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 ambient temperature ( ) output current (a) natural convection ne12s0a0v06(standard) output current vs. ambient temperature and air velocity @vin=5.0v vout=2.5v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 ambient temperature ( ) output current (a) natural convection ne12s0a0v06(standard) output current vs. ambient temperature and air velocity @vin=3.3v vout=0.9v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 ambient temperature ( ) output current (a) natural convection ne12s0a0v06(standard) output current vs. ambient temperature and air velocity @vin=3.3v vout=2.5v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 ambient temperature ( ) output current (a) natural convection
ds_n e 12s06a_ 0 5202013 11 t hermal curves ( horizontal ) figure 34 : temperature measurement location * the allowed maximum hot spot temperature is defined at 118 figure 35: output current vs. ambient temperature and air velocity @vin=12v, vout=0.9 v ( either orientation) figure 36 : output current vs. ambient temperature and air velocity @vin=12v, vout=2.5 v ( either orientation) figure 37 : output current vs. ambient temperature and air velocity @vin=12v, vout=5.0 v ( either orientation) figure 38: output current vs. ambient temperature and air velocity@ vin =5v, vout=0.9v ( either orientation) figure 39: output current v s. ambient temperature and air velocity@ vin =5v, vout=2.5v ( either orientation) ne12s0a0h06(standard) output current vs. ambient temperature and air velocity @vin=12v vout=0.9v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 natural convection 300lfm output current (a) ambient temperature ( ) 400lfm 100lfm 200lfm 500lfm ne12s0a0h06(standard) output current vs. ambient temperature and air velocity @vin=12v vout=2.5v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 natural convection 300lfm output current (a) ambient temperature ( ) 400lfm 100lfm 200lfm 500lfm 600lfm ne12s0a0h06(standard) output current vs. ambient temperature and air velocity @vin=12v vout=5.0v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 natural convection 300lfm output current (a) ambient temperature ( ) 400lfm 100lfm 200lfm 500lfm 600lfm ne12s0a0h06(standard) output current vs. ambient temperature and air velocity @vin=5.0v vout=0.9v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 100lfm ambient temperature ( ) output current (a) natural convection ne12s0a0h06(standard) output current vs. ambient temperature and air velocity @vin=5.0v vout=2.5v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 100lfm ambient temperature ( ) output current (a) natural convection
ds_n e 12s06a_ 0 5202013 12 t hermal curves ( horizontal ) figure 40: output current vs. ambient temperature and air velocity @vin=3.3v, vout=0.9 v ( either orientation) figure 41: output current vs. ambient temperature and air velocity@ vin =3.3v, vout=2.5v ( either orientation) ne12s0a0h06(standard) output current vs. ambient temperature and air velocity @vin=3.3v vout=0.9v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 100lfm ambient temperature ( ) output current (a) natural convection ne12s0a0h06(standard) output current vs. ambient temperature and air velocity @vin=3.3v vout=2.5v (either orientation) 0 1 2 3 4 5 6 25 30 35 40 45 50 55 60 65 70 75 80 85 100lfm ambient temperature ( ) output current (a) natural convection
ds_n e 12s06a_ 0 5202013 13 mechanical drawing vertical horizontal n ote all pins are copper alloy with tin plated over ni under - plating.
ds_n e 12s06a_ 0 5202013 14 part numbering syste m model list model name packaging input voltage output voltage output current efficiency 12vin @ 100% load ne12s0a0v 06 pn f a vertical 3.1v~ 13. 8 vdc 0.59 v~ 5. 1 vdc 6 a 9 4 .5 % @ 5 vout ne12s0a0 h 06 pnfa horizontal 3.1v~ 13. 8 vdc 0.59 v~ 5. 1 vdc 6 a 9 4 .5 % @ 5 vout contact: www.deltaww.com/dcdc usa: telephon e: east coast: 978 - 656 - 3993 west coast: 510 - 668 - 5100 fax: (978) 656 3964 email: dcdc@delta - corp.com europe: telephone: +31 - 20 - 655 - 0967 fax: +31 - 20 - 655 - 0999 email: dcdc @delta - es. com asia & the rest of world : telephone: +886 3 4526107 e xt. 6220 ~6224 fax: +886 3 4513485 email: dcdc@delta.com.tw warranty delta offers a two ( 2) year limited warranty. complete warranty informa tion is listed on our web site or is available upon request from delta. information furnished by delta is believed to be accurate and reliable. however, no responsibility is assumed by delta for its use, nor for any infringements of patents or other right s of third parties, which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of delta. delta reserves the right to revise these specifications at any time, without notice . ne 12 s 0a0 v 06 p n f a product series input voltage number of outputs output voltage mounting output current on/off logic pin length option code ne - non - isolat ed series 12 - 3.1 ~13.8v s - single output 0a0 - programmable h - horizontal v - vertical 06 - 06 a p - positive n - 0. 150 k - 0. 1 3 0 f - rohs 6/6 (lead free) a - 5 pins

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