View D12S400_3256192.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

datasheet ds_D12S400_10032008 features ? high efficiency: 94% @ 12vin, 5.0v/80a out ? wide input range: 5.0v~13.2v ? output voltage programmable from 0.8375vdc to 5.0vdc via external resistors ? no minimum load required ? fixed frequency operation ? input uvlo, output ocp, ovp, otp. ? remote on/off (positive logic) ? power good function ? rohs 6/6 compliant ? iso 9001, tl 9000, iso 14001, qs9000, ohsas18001 certified manufacturing facility applications ? telecom / datacom ? distributed power architectures ? servers and workstations ? lan / wan applications ? data processing applications options delphi D12S400 non-isolated point of load dc/dc modules: 5~13.2vin, 0.8375~5.0v/ 80a output the D12S400, 5.0~13.2v wide input, single output, non-isolated point of load dc/dc converter is the latest offering from a world leader in power systems technology and manufactu ring -- delta electronics, inc. the D12S400 and nd/ne product families are part of the second generation, non-isolated point-of-load dc/dc power modules which cut the module size by almost 50% in most of the cases compared to the first generation nc series pol modules for networking and data communication applications. D12S400 product provides up to 80a in the same form factor of the second generation 60a datacom pols and the output can be resistor trimm ed from 0.8375vdc to 5.0vdc. it provides a highly efficient, high power and current density and very cost effective point of load soluti on. 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.
ds_D12S400_10032008 2 technical specifications (all data below are tested at operating ambient temperatur e 25c, air flow 300lfm, 5.0vout, unless otherwise stated.) parameter notes and conditions D12S400 min. typ. max. units absolute maximum ratings input voltage continuous -0.3 13.8 v operating temperature with appropriate air flow and de-rating as figure 28 0 85 c storage temperature -40 125 c input characteristics operating input voltage vo Q 3.3v 5.0 12.0 13.2 v vo=5.0v 7.5 12.0 13.2 v input under-voltage lockout turn-on voltage threshold vo Q 3.3v, io=1a 4.8 v turn-off voltage threshold vo Q 3.3v, io=1a 4.5 v lockout hysteresis voltage 0.3 v maximum input current 100%load, 12vin, 5.0vout 38 a no-load input current total input range 750 ma off converter input current remote off 35 ma output characteristics output voltage adjustment range 0.8375 5.0 v output voltage set point measured at remote sense pin -1.5 +1.5 %vo output voltage regulation over load io=io_min to io_max -0.5 +0.5 %vo over line vin=vin_min to vin_max -0.5 +0.5 %vo over temperature tc=0c to 85c -1.0 +1.0 c total output range over load, line, temperature regulation and set point -3.5 +3.5 %vo output voltage ripple and noise 5hz to 20mhz bandwidth peak-to-peak full load, 10uf tan cap & 1uf ceramic, total input & output range 50 mv rms full load, 10uf tan cap & 1uf ceramic, total input & output range 20 mv output current range 0 80 a output voltage over-shoot at start-up vin=12v, turn on 0.5 % output voltage under-shoot at power-off vin=12v, turn off 100 mv output dc current-limit inception hiccup mode 135 %iomax dynamic characteristics output dynamic load response without output cap. positive step change in output current 12vin, 5.0vout, 0a to 20a, 10a/us 170 mv negative step change in output current 12vin, 5.0vout, 20a to 0a, 10a/us 170 mv settling time settling to be within regulation band (to 10% vo deviation) 20 s turn-on transient start-up time, from on/off control from enable high to 90% of vo 5 ms start-up time, from input power from vin=12v to 90% of vo 10 ms power good delay from pg to 90% of vo 5 ms minimum output capacitance 0 f maximum output startup capacitive load full load 0 5000 f minimum input capacitance 2200 f efficiency vo=1.0v vin=12v, io=80a 85.0 % vo=1.2v vin=12v, io=80a 86.0 % vo=1.5v vin=12v, io=80a 88.5 % vo=1.8v vin=12v, io=80a 89.5 % vo=2.5v vin=12v, io=80a 91.5 % vo=3.3v vin=12v, io=80a 92.5 % vo=5.0v vin=12v, io=80a 94.0 % feature characteristics switching frequency fixed 500 khz on/off control positive logic (internally pulled high) logic high module on (or leave the pin open) 1.5 5.5 v logic low module off -0.3 0.8 v general specifications calculated mtbf 12vin, 5.0vout, full load, 55 , 400lfm 1.0 m hours 12vin, 5.0vout, full load, 25 , 400lfm 1.4 m hours weight 35.0 grams over-temperature shutdown refer to figure 28 for the measuring point 125 c
ds_D12S400_10032008 3 electrical characteristics curves figure 1: converter efficiency vs. output current (1.2v output voltage) figure 2: converter efficiency vs. output current (1.5v output voltage) figure 3: converter efficiency vs. output current (1.8v output voltage) figure 4: converter efficiency vs. output current (2.5v output voltage) figure 5: c onverter efficiency vs. output current (3.3v output voltage) figure 6: converter efficiency vs. out p ut current (5.0v output voltage) effciency 70 75 80 85 90 95 10 20 30 40 50 60 70 80 output current (a) effciency (%) 5v 12v 13.2v effciency 60 65 70 75 80 85 90 95 10 20 30 40 50 60 70 80 output current (a) effciency (%) 5v 12v 13.2v effciency 65 70 75 80 85 90 95 10 20 30 40 50 60 70 80 output current (a) effciency (%) 5v 12v 13.2v effciency 75 80 85 90 95 100 10 20 30 40 50 60 70 80 output current (a) effciency (%) 5v 12v 13.2v effciency 65 70 75 80 85 90 95 10 20 30 40 50 60 70 80 output current (a) effciency (%) 5.0v 12v 13.2v effciency 75 80 85 90 95 100 10 20 30 40 50 60 70 80 output current (a) effciency (%) 7.5v 12v 13.2v
ds_D12S400_10032008 4 electrical characteristics curves (continued) figure 7: output ripple & noise at 12vin, 1.2v/80a out (10mv/div, 1ms/div) figure 8: output ripple & noise at 12vin, 1.5v/80a out (10mv/div, 1ms/div) figure 9: output ripple & noise at 12vin, 1.8v/80a out (10mv/div, 1ms/div) figure 10: output ripple & noise at 12vin, 2.5v/80a out (10mv/div, 1ms/div) figure 11: output ripple & noise at 12vin, 3.3v/80a out (10mv/div, 1ms/div) figure 12: output ripple & noise at 12vin, 5.0v/80a out (10mv/div, 1ms/div)
ds_D12S400_10032008 5 electrical characteristics curves (continued) figure 13: control turn on, 1.2v/80a out ch1: vo, ch2:pg, ch3:enable figure 14: control turn on, 1.5v/80a out ch1: vo, ch2:pg, ch3:enable figure 15: control turn on, 1.8v/80a out ch1: vo, ch2:pg, ch3:enable figure 16: control turn on, 2.5v/80a out ch1: vo, ch2:pg, ch3:enable figure 17: control turn on, 3.3v/80a out) ch1: vo, ch2:pg, ch3:enable figure 18: control turn on, 5v/80a out ch1: vo, ch2:pg, ch3:enable
ds_D12S400_10032008 6 electrical characteristics curves (continued) test condition: slew rate: 10a/us, load step: 25% of max. load, output without caps. figure 19: typical transient response, 1.2v output ch1:vo, ch4:io,10a/div figure 20: typical transient response, 1.5v output ch1:vo, ch4:io,10a/div figure 21: typical transient response, 1.8v output ch1:vo, ch4:io,10a/div figure 22: typical transient response, 2.5v output ch1:vo, ch4:io, 10a/div figure 23: typical transient response, 3.3v output ch1:vo, ch4:io,10a/div figure 24: typical transient response, 5.0v output ch1:vo, ch4:io,10a/div
ds_D12S400_10032008 7 features descriptions enable (on/off) D12S400 has positive on/off logic, pulling the pin low will turn off the unit. with the active high function, the output is guaranteed to turn on if the enable pin is driven above 1.5v. the output will turn off if the enable pin voltage is pulled below 0.8v. the D12S400 is turned on if the enable pin is floating. the enable input can be driven in a variety of way as shown in figures 25. unit vin vout enable trim gnd gnd figure 25: enable input drive circuit over-current and short-circuit protection the D12S400 has 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 remo ved, the module will resume normal operation. an over current condition is detected by measuring the voltage drop across the rds(on) of low side mosfet. rds(on) is affected by tem perature, ther efore ambient temperature will affect the cu rrent limit inception point. output over voltage protection (ovp) the converter will shut down when an output over voltage protection is detected. once the ovp condition is detected, controller will latch off and can only reset by input voltage or on/off. design considerations the D12S400 uses a voltage mode controlled buck topology. the output can be trimmed in the range of 0.8375vdc to 5.0vdc by an external resistor from trim(+) pin to trim(-). the converter can be turned on/off by remote control with positive on/off (enable pin) logic. the converter dc output is disabled when the signal is driven low. when this pin is floating the module will turn on. the converter can protect itse lf 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 recommended that the user to provide 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.
ds_D12S400_10032008 8 features descriptions (cont.) output voltage programming the output voltage of the D12S400 is trimmable by connecting an external resistor between the trim(+) and trim(-) pins as shown in figure 26 and the typical trim resistor values are shown in table 1. unit vin vout enable trim(+) gnd trim(-) rtrim figure 26: trimming output voltage the D12S400 module has a trim range of 0.8375v to 5.0v. the trim resistor equation for the D12S400 is: 8375 . 0 675 . 1 ) ( ? = vout rtrim vout is the output voltage set point rtrim is the resistance between trim(+) and trim(-) rtrim values should not be less than 360 ? output voltage rtrim ( ? ) 0.8375v open +1.0v 10.3k +1.2v 4.631k +1.5v 2.528k +1.8v 1.74k +2.5v 1.008k +3.3v 680 +5.0v 402 table 1: typical trim resistor values power good the converter provides an open collector signal called power good. this output pin uses positive logic and is open-drain. this power good output is able to sink 4ma. the power good signal is pulled low when an input under voltage, output over voltage, or out put over current conditions is detected or when the converter is disabled by enable pin. paralleling D12S400 converters do not have bu ilt-in current sharing (paralleling) ability. hence, paralleling of multiple D12S400 converters are not recommended. output capacitance there is output capacitor on the D12S400 . hence, no external output capacitor is requir ed for stable operation. reflected ripple current and output ripple and noise measurement the measurement set-up outlined in figure 27 has been used for both input reflected/ terminal ripple current and output voltage ripple and noise measurements on D12S400 converters. dc-dc converter 1uf ceramic ta n 10uf vin+ load ltest cs cin output voltage ripple noise measurement point input reflected current measurement point cs=330 f os-con cap x 1, ltest=1 h, cin=330 f os-con cap x 1, figure 27: input reflected ripple/ capacitor ripple current and output voltage ripple and noise measurement setup for D12S400
ds_D12S400_10032008 9 thermal curves D12S400 series output current vs. ambient temperature and air velocity @ vin =12v, vout =1v (worse orientation) 0 10 20 30 40 50 60 70 80 90 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm figure 29: output current vs. ambient temperature and air velocity @vin=12v, vout=1.0v (worst orientation) D12S400 series output current vs. ambient temperature and air velocity @ vin =12v, vout =1.2v (worse orientation) 0 10 20 30 40 50 60 70 80 90 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm figure 30: output current vs. ambient temperature and air velocity @vin=12v, vout=1.2v (worst orientation) D12S400 series output current vs. ambient temperature and air velocity @ vin =12v, vout =1.5v (worse orientation) 0 10 20 30 40 50 60 70 80 90 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm figure 31: output current vs. ambi ent temperature and air velocity@ vin=12v, vout=1.5v (worst orientation) thermal considerations thermal management is an important part of the system design. to ensure proper, reliable operation, sufficient cooling of the power module is needed over the 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 de-rating heat can be removed by increasing airflow over the module. the module?s maximum hot spot temperature is defined at 125 . 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. thermal curves figure 28: hot spot temperature measured point the allowed maximum hot spot temperature is defined at 125 .
ds_D12S400_10032008 10 thermal curves D12S400 series output current vs. ambient temperature and air velocity @ vin =12v, vout =1.8v (worse orientation) 0 10 20 30 40 50 60 70 80 90 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm figure 32: output current vs. ambi ent temperature and air velocity@ vin=12v, vout=1.8v (worst orientation) D12S400 series output current vs. ambient temperature and air velocity @ vin =12v, vout =2.5v (worse orientation) 0 10 20 30 40 50 60 70 80 90 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm figure 33: output current vs. ambient temperature and air velocity @vin=12v, vout=2.5v (worst orientation) D12S400 series output current vs. ambient temperature and air velocity @ vin =12v, vout =3.3v (worse orientation) 0 10 20 30 40 50 60 70 80 90 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm figure 34: output current vs. ambi ent temperature and air velocity@ vin=12v, vout=3.3v (worst orientation) D12S400 series output current vs. ambient temperature and air velocity @ vin =12v, vout =5v (worse orientation) 0 10 20 30 40 50 60 70 80 90 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm figure 35: output current vs. ambient temperature and air velocity @vin=12v, vout=5.0v (worst orientation)
ds_D12S400_10032008 11 mechanical drawing
ds_D12S400_10032008 12 part numbering system d 12 s 400 a type of product input voltage number of outputs product series option code d - dc/dc modules 12 - 5 ~13.2v s- single 400 - 400w (80a, wide output trim) a - rohs 6/6 lead free, positive on/off logic, 3.5mm pin length b - rohs 6/6 lead free, positive on/off logic, 6.3mm pin length model list model name input voltage output voltage output current pin length rohs 6/6 complaint efficiency 12vin, 5 v out @ 100% load D12S400 a 5.0 ~ 13.2vdc 0.8375v ~ 5.0v 80a 3.5mm (0.140") yes 94.0% D12S400 b 5.0 ~ 13.2vdc 0.8375v ~ 5.0v 80a 6.3mm (0.250") yes 94.0% contact: www.delta.com.tw/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. 6220~6224 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 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 rights of third parties, which may result from its use. no license is granted by implication or otherwise under any patent or pat ent rights of delta. delta reserves the right to revise these specifications at any time, without notice .

▲Up To Search▲

Price & Availability of D12S400

	To Download D12S400 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .