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data sheet d s _ d12f200_ 10202013 features ? high ef ficiency: 9 4 % @ 12vin, 5.0v/ 4 0a out s ize: 30.5*27.9*11.1(1.20 *1.10 *0.44 ) ? wide input range: 4.5 v~1 3.8 v ? output voltage programmable from 0.6 vdc to 5.0 vdc via external resistors ? no minimum load required ? fixed frequency operation ? input uvlo , output scp , ovp. ? remote on/off (positive logic) ? power good function ? rohs 5 / rohs 6 ? iso 900 1 , tl 9000, iso 14001, qs9000, ohsas18001 certified manufacturing facility applications ? telecom / datacom ? distributed power architectures ? servers and work s tations ? lan / wan applications ? data processing application s delphi d12f200 non - isolated point of load dc/dc modules: 4.5v ~13.8vin, 0.6 v ~ 5. 0 vout, 40a the d12f 2 00 , 4. 5~13. 8v 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 manufacturing -- delta electronics, inc. the d12f200 and nd/ne product families are part of the s econd 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. d12f200 product provide s up to 4 0 a output current and the output can be resistor trimmed from 0. 6 vdc to 5.0 vdc. it provides a highly efficient, high power and current density and very cost effective point of load solution. with c reative design technology and optimization of comp onent placement , these converters possess outstanding electrical and thermal performance, as well as extremely high reliability under highly stressful operating conditions.
ds_d12f200_ 10202013 2 technical specificat ions (ambient temperature=25c, nominal v in =12vdc unless otherwise specified .) parameter notes and conditions d12f200 min. typ. max. uni ts absolute maximum ratings input voltage - 0.3 13. 8 vdc operating temperature refer to fig. 3 7 for the measuring point 0 70 c storage temperature - 40 12 5 c input characteristics operating input voltage 4.5 13.8 v input under - voltag e lockout turn - on voltage threshold 4.3 v dc turn - off voltage threshold 4.0 v dc maximum input current vin=12v, vo=5v , io=40a 18 a no - load input current vin=12v, vo=5v , io=40a 2 60 300 ma off converter input current remote off 17 20 ma in put voltage slew rate dv/dt 10 v/ms output characteristics output voltage adjustment range r efer to fig.19 for the relations between input and output voltage 0. 6 5 . 0 v dc output voltage set point with a 0.1% trim resistor - 1.0 + 1.0 %vo output voltage regulation over load vo Q 1.2vdc - 20 + 20 mv vo 1.2vdc - 1.5 +1.5 %vo over line vin=vin_min to vin_max - 0. 5 +0. 5 %vo total output range over load, line, temperature regulation and set point - 3.0 + 3.0 %vo output voltage ripple and noise 5hz to 20mhz bandwidth peak - to - pe ak full load, 10uf tan cap , total input & output range 20 50 mv output current range 0 40 a output voltage under - shoot at power - off vin=12v, turn off 100 mv output short - circuit current, rms value 12vin, 5vout 10 a over current protection hiccup mode 70 a over voltage protection non - latching shutdown 120 % dynamic characteristics transient response 25% step load, slew rate=10a/us , 0.6v~1.8v output 120 150 mvpk 25% step load, slew rate=10a/us , 2.5v~ 5.0v output 130 160 mvpk output dynamic load response 12vin, 2. 5vout, 1f ceramic and 10f tan cap settling time settling to be within regulation band (to 10% vo deviation) 20 50 s turn - on transient rise time from 10% to 90% of vo 1.5 ms turn on delay (power) vin=12v, i o=min - max. (wthin 10% of vo) 3 ms turn on delay (remote on/off) vin=12v, io=min - max. (wthin 10% of vo) 3 ms t urn on transient (overshoot) 0.5% vo t urn off transient ( under shoot) 100 mv maximum output capacitance 0 5 000 f efficiency vo= 0.6 v vin=12v, io= 4 0 a 70 71.4 % vo= 0.9v vin=12v, io= 4 0 a 78 79.4 % vo=1.2 v vin=12v, io= 4 0 a 81 83.5 % vo=1.5 v vin=12v, io= 4 0 a 84 85.9 % vo=1.8 v vin=12v, io= 4 0 a 85 87.5 % vo=2.5 v vin=12v, io= 4 0 a 88 90.4 % vo=3.3 v vin=12v, io= 4 0 a 90 92.2 % vo= 5 .0 v vin=12v, io= 4 0 a 92 94.0 % feature characteristics switching frequency f ixed, per phase 5 00 khz on/off control positive logic (internally pulled high ) logic high module on (or leave the pin open) 1.2 vinmax v logic low module off 0 0 . 6 v remote sense range 0.5 v power good vo is out off +/ - 10% vo ,set 0 0.4 v vo is within +/ - 10% vo ,set 4.0 5.1 v power good delay 0.2 2 ms output to power good delay time 1 ms general specifications calculated mtbf 25 , 300lfm, 80% l oad 5.6 m hours weight 14 grams
ds_d12f200_ 10202013 3 electrical character istics curves figure 1: converter efficiency vs. output current ( 0. 9 v output voltage, 5v& 12v input) figure 2: converter efficiency vs. output current ( 1.2 v output vol tage, 5v& 12v input) figure 3: converter efficiency vs. output current ( 1.8 v output voltage, 5v& 12v input) figure 4: converter efficiency vs. output current ( 2.5 v output voltage, 5v& 12v input) figure 5 : converter efficiency vs. output current ( 3.3 v output voltage, 12v input) figure 6 : converter efficiency vs. output current ( 5.0 v output voltage, 12v input) 60 65 70 75 80 85 90 0 5 10 15 20 25 30 35 40 output current, io (a) efficiency (%) 5vin 12vin 13.8vin 65 70 75 80 85 90 95 0 5 10 15 20 25 30 35 40 output current, io (a) efficiency (%) 5vin 12vin 13.8vin 70 75 80 85 90 95 100 0 5 10 15 20 25 30 35 40 output current, io (a) efficiency (%) 5vin 12vin 13.8vin 70 75 80 85 90 95 100 0 5 10 15 20 25 30 35 40 output current, io (a) efficiency (%) 5vin 12vin 13.8vin 70 75 80 85 90 95 100 0 5 10 15 20 25 30 35 40 output current, io (a) efficiency (%) 7vin 12vin 13.8vin 70 75 80 85 90 95 100 0 5 10 15 20 25 30 35 40 output current, io (a) efficiency (%) 9vin 12vin 13.8vin
ds_d12f200_ 10202013 4 electrical character istics curves (continued) figure 7 : output ripple & noise at 12vin, 0. 9 v/ 4 0 a out ( 1 0mv/div, 2 us/div) figure 8 : output ripple & noise at 12vin, 1.2 v/ 4 0 a out ( 1 0mv/div, 2 us/div) figure 9 : output ripple & noise at 12vin, 1.8 v/ 4 0 a out ( 1 0mv/div, 2 u s/div) figure 10 : output ripple & noise at 12vin, 2.5 v/ 4 0 a out ( 1 0mv/div, 2 us/div) figure 11 : output ripple & noise at 12vin, 3.3 v/ 4 0 a out ( 1 0mv/div, 2 us/div) figure 12 : output ripple & noise at 12vin, 5.0 v/ 4 0 a out ( 1 0mv/div, 2 u s/div)
ds_d12f200_ 10202013 5 electr ical characteristics curves (continued) figure 13 : turn on delay time at 12vin, 0.9 v/ 4 0 a out ( 4 ms/div) ch 2 : pg , ch 3 : enable , ch 4 : vo figure 1 4 : turn on delay time at 12vin, 1.2 v/ 4 0 a out ( 4 ms/div) ch 2 : pg , ch 3 : enable , ch 4 : vo figure 1 5 : turn on delay time at 12vin, 1.8 v/ 4 0 a out (4 ms/div) ch 2 : pg , ch 3 : enable , ch 4 : vo figure 1 6 : turn on delay time at 12vin, 2.5 v/ 4 0 a out (4 ms/div) ch 2 : pg , ch 3 : enable , ch 4 : vo figure 1 7 : turn on delay time at 12vin, 3.3 v/ 4 0 a out ( 4 ms/div) ch 2 : pg , ch 3 : enable , ch 4 : vo figure 1 8 : turn on delay time at 12vin, 5.0 v/ 4 0 a out (4 ms/div) ch 2 : pg , ch 3 : enable , ch 4 : vo
ds_d12f200_ 10202013 6 electrical character istics curves (continued) figure 1 9 : transient response at 12vin, 0.9 v/ 4 0 a out ( 40u s/div) ch 1 : vo, ch 2 : io , 10a /div figure 20 : transient response at 12vin, 1.2 v/ 4 0 a out ( 40u s/div) ch 1 : vo, ch 2 : io , 10a/div figure 21 : transient response at 12vin, 1.8 v/ 4 0 a out ( 40u s/div) ch 1 : vo, ch 2 : io , 1 0a/div figure 22 : transient response at 12vin, 2.5 v/ 4 0 a out ( 40u s/di v) ch 1 : vo, ch 2 : io , 10a/div figure 23 : transient response at 12vin, 3.3 v/ 4 0 a out ( 40u s/div) ch 1 : vo, ch 2 : io , 10a/div figure 24 : transient response at 12vin, 5.0 v/ 4 0 a out ( 40u s/div) ch 1 : vo, ch 2 : io , 10a/div
ds_d12f200_ 10202013 7 electrical character istics curves (continued) figure 25 : short circuit protection at 12vin, 0.9 v out ( 40 ms/div) , ch 1 : vo, ch 2 : io, 50a/div figure 26 : short circuit protection at 12vin, 1.2 v out ( 40 ms/div) , ch 1 : vo, ch 2 : io, 50a/div figure 27 : short circuit protection at 12vi n, 1.8 v out ( 40 ms/div) , ch 1 : vo, ch 2 : io, 50a/div figure 28 : short circuit protection at 12vin, 2.5 v out (40 ms/div) , ch 1 : vo, ch 2 : io, 50a/div figure 29 : short circuit protection at 12vin, 3.3 v out (40 ms/div) , ch 1 : vo, ch 2 : io, 50a/div figure 30 : short circuit protection at 12vin, 5.0 v out (40 ms/div) , ch 1 : vo, ch 2 : io, 50a/div
ds_d12f200_ 10202013 8 features description s e nable (on/off) the enable (on/off) input allows external circuitry t o put the d12f200 converter into a low power dissipation ( sleep ) mode. positive enable is available as standard. positive enable units of the d12f200 series are turned on if the enable pin is high or floating. 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 1.2 v. the output will turn off if the enable pin voltage is pulled below 0. 6 v. input under - voltage lockout the input under - voltage lockout prevents the c onverter from being damaged while operating when the input voltage is too low. the under - voltage lockout is adjustable by adding a resistor (figure 32 ) between enable pin and ground pin per the following equation: default lockout ra nge is between 4.3 v and 4. 0 v. figure 32 : enable input drive circuit example . reflected ripple current and output ripple and noise measurement the measurement set - up outlined in figure 33 has been used for both input reflected / terminal ripple current and output voltage ripple and noise measurements on d12f200 converters. cs=330 f o s - con ca p x1, ltest= 1 h, cin= 33 0 f o s - con cap x 1 figure 33: input reflected ripple/ capacitor ripple current and output voltage ripple and noise measurement setup for d12f200 design consideration s the d12f200 u ses a two phase and voltage mode controlled buck topology. the output can be trimmed in the range of 0. 6 vdc to 5 . 0 vdc by a resistor from trim pin to ground. the converter can be turned on/off by remote control . positive on/off (enable pin) logic implies that the converter dc output is enabled when the signal is driven high (greater than 1.2 v) or floating and disabled when the signal is driven low (below 0. 6 v) . the converter prov ides a n open collector power good signal. the power good signal is pulled low when output is not within 10% of vout or enable is off. for output voltages above 1.8v, please refer to figure 31 below for minimum input voltage requirement for proper module operations. the converter can protect itself by entering hiccup mode against over current and short circuit condition. safety considerations it is recommend ed that the user to provide a fuse in the input line for safety . the output voltage set - point an d the output current in the application could define the amperage rating of the fuse. figure 31 : minimum input voltage required for output voltage s above 1.8v 8 . 3 14 315 ) ( re ? ? ? ven k n unit vin vout enable trim (+) gnd gnd r en 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 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5 14.5 input voltage(v) output voltage(v) vo=5v vo=0. 6v vo=3. 3v vo=2. 5v vo=1. 8v
ds_d12f200_ 10202013 9 features description s (con.) over - current and short - circuit protection the d12f200 modules have no n - 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 con dition is detected by measuring the voltage drop across the inductor . the voltage drop across the inductor is also a function of the inductor s dcr . note that none of the module specifications are guaranteed when the unit is operated in an over - curren t c ondition . 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 stop all pwm outputs and turn on low - side mosfet to prevent any damage to load. remote sense the d12f200 provide vo remote sensing to achieve proper regulation at the load points and reduce effects of distribution losses on output line. in the event of an open remote sens e line, the module shall maintain local sense regulatio n through an internal resistor. the module shall correct for a total of 0.5v of loss. the remote sense connects as shown in figure 34 . figure 34 : circuit configuration for remote sense output capacitance there are internal output capacitor s on the d12f 200 modules. hence , no external output capacitor is required for stable operation. output voltage programming the output voltage of the d12f200 is trimma ble by connecting an external resistor between the trim pin and output ground as shown figure 35 and the typical trim resistor values are shown in table 1 . figure 35: trimming output voltage t he d12f200 module has a trim ran ge of 0. 6 v to 5.0 v. the trim resistor equation for the d12f200 is: vout is the output voltage setpoint rtrim is the resistance between trim and ground rtrim values should not be less than 27 0 output voltage rtrim () 0.6v open + 0.9 v 4 k +1.2v 2k +1.5 v 1.3 3 k +1.8v 1k +2.5 v 631.6 +3.3 v 444.4 +5.0v 2 72.7 table 1: typical trim resistor values p ower good the converter provides an open collector signal called power good. this output pin uses positive logic and is open collector. this power good output is able to sink 4ma and set high when the output is within 10% of output set point. the power good signal is pulled low when output is not within 10% of vout or enable is off. paralle ling d12f200 converters do not have built - in current sharing (paralleling) ability. hence, p arallel ing of multiple d12f200 converter s is not recommended . unit vin vout enable trim (+) gnd gnd rtrim 6 . 0 1200 ) ( ? ? ? vout rtrim
ds_d12f200_ 10202013 10 t hermal curves figure 3 7 : temperature measurement location * the allowed maximum hot spot temperature is defined at 125 figure 3 8 : output current vs. ambient temperature and air velocity @vin=12v, vout= 5.0 v ( airflow from pin1 to pin11 ) figure 3 9 : output current vs. ambient temperature and air velocity@ vin=12v, vout=3.3v ( worst orientation) 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 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 testing setup deltas dc/dc power modules ar e 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 modules 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 constantly 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 tunnel test s etup f igure dimensions are in millimeters and (inches) figure 36: wind tunnel test setup d12f200a output current vs. ambient temperature and air velocity @ vin =12v, vout =5v (worst orientation) 0 5 10 15 20 25 30 35 40 45 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm d12f200a output current vs. ambient temperature and air velocity @ vin =12v, vout =3.3v (worst orientation) 0 5 10 15 20 25 30 35 40 45 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm 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_d12f200_ 10202013 11 t hermal curves figure 4 0 : output current vs. ambient temperature and air velocit y@ vin= 5.0 v, vout=2.5v ( worst orientation) figure 4 1 : output current vs. ambient temperature and air velocity @vin=12v, vout=1.8 v (worst orientation) figure 4 2 : output current vs. ambient temperature and air velocity@ vin= 5.0 v, vout=1.5v ( worst ori entation) figure 43: output current vs. ambient temperature and air velocity @vin=12v, vout=1.2 v (worst orientation) figure 44 : output current vs. ambient temperature and air velocity@ vin=12v, vout=0.9v ( worst orientation) d12f200a output current vs. ambient temperature and air velocity @ vin =12v, vout =2.5v (worst orientation) 0 5 10 15 20 25 30 35 40 45 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm d12f200a output current vs. ambient temperature and air velocity @ vin =12v, vout =1.8v (worst orientation) 0 5 10 15 20 25 30 35 40 45 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm d12f200a output current vs. ambient temperature and air velocity @ vin =12v, vout =1.5v (worst orientation) 0 5 10 15 20 25 30 35 40 45 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm d12f200a output current vs. ambient temperature and air velocity @ vin =12v, vout =1.2v (worst orientation) 0 5 10 15 20 25 30 35 40 45 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 300lfm 500lfm 100lfm 400lfm natural convection d12f200a output current vs. ambient temperature and air velocity @ vin =12v, vout =0.9v (worst orientation) 0 10 20 30 40 50 60 70 25 35 45 55 65 75 85 ambient temperature ( ) output current (a) 200lfm 600lfm 100lfm 300lfm 500lfm natural convection 400lfm
ds_d12f200_ 10202013 12 mechanical drawing a ll pins was copper alloy with matte - tin plated over ni plated
ds_d12f200_ 10202013 13 part numberin g system d 12 f 200 e type of product input voltage product series output option code d - dc/dc modules 12 - 4.5 ~13. 8 v 200 - 200w/40a e C short start up time model list model name input voltage output voltage output current lead free efficiency, 12vi n d12f200 e 4.5 v~ 13. 8 vdc 0. 6 v ~ 5.0v 40a rohs 6 94% @ 5v/40a contact: www.deltaww.com/dcdc usa: telephone: 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 ext. 6220 ~6 224 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. informati on 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 implic ation or otherwise under any patent or patent rights of delta. delta reserves the right to revise these specifications at any time, without notice .

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