View MFA420PS12_8831165.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

mfa420 series ? screw terminals available ? u channel & cover fan formats ? high power density 13.3 w/in 3 ? 5 v standby & 12 v fan outputs ? active current share ? remote on/off ? ac & dc ok signals ? -10 oc to +70 oc operation ? level b conducted emissions the mfa420 has been designed with multiple mechanical options to facilitate its integration into a wide range of applications. designers of these systems demand higher power from ac-dc units in industry-standard formats as processing power and functionality grows within tight space constraints. the mfa420 delivers over 420 w across the full universal ac input range fro m an industry-standard 3.2 x 6.8 inch (81.3 x 172.7 mm) footprint. it is 1.5 inches (38.1 mm) high and achieves 13.3 watts per cubic inch power density without compromising performance or functionality. with efficiency up to 88% at full load, the mfa420 operates up to 50 c ambient and up to 70 c ambient with derating. the main output is 12, 24 or 48 vdc but each power supply also has a 5 v, 0.3 a standby output and a 12 v, 1a output for powering fans. the unit incorporates a fully featured signal set including ac ok/dc ok, remote on/off and active current sharing.
2 xppower.com input characteristics characteristic minimum typical maximum units notes & conditions input voltage - operating 85 264 vac derate output power 10% < 90 vac input frequency 47 50/60 63 hz power factor > 0.9 en61000-3-2 class a en61000-3-2 class d input current - no load 100 ma input current - full load 3.6/1.8 a 115/230 vac inrush current 60 a 230 vac cold start earth leakage current 1 ma 230 vac/50 hz input protection t6.3a/250 v internal fuse in line output characteristics characteristic minimum typical maximum units notes & conditions output voltage - v1 12 48 vdc see models and ratings table initial set accuracy 1 (v1) , 5 (v2) & 3 (v3) % output voltage adjustment 10 % minimum load 0 no minimum load required start up delay 1 2 s 90 vac full load (see fig. 1) hold up time 16 20 ms 90 vac full load (see fig. 2 & 3) drift 0.2 % after 20 min warm up line regulation 0.5 (v1) , 3 (v2) & 3 (v3) % load regulation 1 (v1) , 5 (v2) & 3 (v3) % 0-100% load. v2 10-100% load transient response - v1 4 % recovery within 1% in less than 500 s for a 50-75% and 75-50% load step over/undershoot - v1 1 % (see fig. 4) ripple & noise 1 (v1 & v3) & 2 (v2) % pk-pk 20 mhz bandwidth (see fig. 6 & 7) overvoltage protection 115 140 % vnom dc. output 1 only, recycle input to reset overload protection 110 140 % i nom output 1 only, auto reset (see fig. 5) short circuit protection continuous temperature coefficient 0.05 %/?c overtemperature protection 75 c thermal sensor under pcb models and ratings output voltage v1 maximum output current fan output (2) v2 standby supply v3 max power 13 cfm airflow model number (1) 12.0 vdc 35.0 a 12 v/1 a 5 v/0.3 a 434 w MFA420PS12 24.0 vdc 17.5 a 12 v/1 a 5 v/0.3 a 434 w mfa420ps24 48.0 vdc 8.8 a 12 v/1 a 5 v/0.3 a 436 w mfa420ps48 notes 1. units supplied with molex connections for j1 & j2 as standard. add suffix -s to model number to replace with screw termina ls. add suffix -tf for covered version with top fan and suffix -ef for covered version with end fan. example:- MFA420PS12-stf, 12 v unit fitted with screw t erminals and top fan. 2. not available for -tf & -ef versions.
xppower.com 3 start up delay from ac turn on figure 1 example of start up all outputs (taken from mfa350ps12) hold up time from loss of ac figure 2 v1 hold up at full load with 90 vac input (26.8 ms) (taken from mfa350ps12) figure 3 full load 90 vac input (taken from mfa350ps12) ac v1 v2 v3 ac ac v1 v1 v2 v3
xppower.com 4 output overshoot output overload characteristic figure 4 typical output overshoot (MFA420PS12) figure 5 typical output overload (MFA420PS12) MFA420PS12 - ocp chart 0 2 4 6 8 10 12 14 0 1020304050 output current (a) unit enters hiccup mode output voltage (v)
output ripple & noise figure 6 v1 MFA420PS12 (full load) 45 mv pk-pk ripple. 20 mhz bw figure 7 v1 mfa420ps48 (full load) 194 mv pk-pk ripple. 20 mhz bw xppower.com 5
xppower.com xxxxxxxxxx 6 general specifications characteristic minimum typical maximum units notes & conditions efficiency 86 % full load (see fig. 8 & 9) isolation: input to output input to ground output to ground 3000 vac 1500 vac 100 vdc switching frequency: pfc main converter 78 khz 120 khz power density 11.1 w/in 3 mean time between failure 420 khrs mil-hdbk-217f, notice 2 +25 c gb weight 1.35 (612) lb (g) characteristic notes & conditions signals ac ok/powerfail open collector referenced to output 0v, transistor normally off when ac is good (see fig. 10, 16, 17 & 18) ac ok: provides 5 ms warning of loss of output from ac failure dc ok open collector referenced to 0 v, transistor normally off when dc is good (see fig. 11, 19 & 20). provides warning of dc output failure remote on/off (inhibit/enable) remotely switches outputs off, can also be configured as enable (see fig.12) current share up to 3 supplies can be connected in parallel. output current is shared within 10% at full load. derate overall output current to 90% when used in parallel (see fig.13, 14 & 15) remote sense compensates for 0.5 v total voltage drop efficiency versus load MFA420PS12 - efficiency against input voltage 72% 74% 76% 78% 80% 82% 84% 86% 88% 0 20 40 60 80 100 120 load (%) efficiency figure 8 MFA420PS12 @ 230 vac mfa420ps48 - efficiency against input voltage 70% 72% 74% 76% 78% 80% 82% 84% 86% 88% 90% 0 20 40 60 80 100 120 load (%) efficiency figure 9 mfa420ps48 @ 230 vac
xppower.com signals ac ok/power fail ac ok collector pin 1 ac ok emitter pin 7 power supply transistor on (<0.8 v): ac not ok transistor off (>4.5 v): ac ok j3 logic connector 330r 5 v standby return pin 10 5 v standby pin 9 max 12 v 20 ma dc ok collector pin 4 dc ok emitter pin 7 power supply transistor on (<0.8 v): dc not ok transistor off (>4.5 v): dc ok j3 logic connector 330r 5 v standby return pin 10 5 v standby pin 9 max 12 v 20 ma dc ok power supply j3 logic connector pin 7 pin 2 jumper (jp1) fitted (standard) open or ttl high = psu on short circuit or ttl low = psu off jumper (jp1) removed open or ttl high = psu off short circuit or ttl low = psu on internal vref jp1 see page 12 mechanical details for location remote on/off (inhibit) figure 10 figure 11 figure 12 7
xppower.com xxxxxxxxxx 8 signals parallel load & current share connections - + - + - + - + v1 output v1 output v1 output - sense - sense + sense + sense - sens e + sense current share current share psu 1 psu 2 psu 3 load parallel remote on/off (inhibit) connection parallel ac ok connection (dc ok follows same format) figure 13 figure 14 figure 15 psu 1 psu 2 psu 3 pin 2 pin 7 pin 2 pin 7 pin 2 pin 7 j3 logic connectors jumper (jp1) fitted open or ttl high = psu on short circuit or ttl low = psu off jumper (jp1) removed open or ttl high = psu off short circuit or ttl low = psu on ac ok collector pin 1 ac ok emitter pin 7 power supply 1 j3 logic connector 330r 5 v standby return pin 10 5 v standby pin 9 ok collector pin 1 ok emitter pin 7 power supply 2 j3 logic connector ac ok emitter pin 7 power supply 3 j3 logic connector transistor on (<0.8 v): ac not ok transistor off (>4.5 v): ac ok ac ok collector pin 1
xppower.com xxxxxxxxxx 9 signals figure 16 ac ok signal at ac switch on (taken from mfa350ps12) figure 17 ac ok signal at ac switch off (taken from mfa350ps12) figure 18 v1 warning time at ac ok signal 90 vac full load (taken from mfa350ps12) ac ok v1 v2 v3 ac ok v1 v2 v3 ac ok v1
xppower.com xxxxxxxxxx 10 signals figure 20 dc ok at ac switch off (taken from mfa350ps12) figure 19 dc ok at ac switch on (taken from mfa350ps12) dc ok v1 v2 v3 dc ok v1 v2 v3
xppower.com xxxxxxxxxx 11 environmental characteristic minimum typical maximum units notes & conditions operating temperature -10 +70 c derate linearly from +50 c at 2.5%/c to 50% at 70 c when forced cooled. see thermal considerations. storage temperature -20 +85 c cooling 13 cfm u channel version. -tf & -ef models have integral fan. see thermal considerations for u channel. humidity 5 95 %rh non-condensing operating altitude 3000 m shock 3 x 30 g/11 ms shocks in both +ve & -ve directions along the 3 orthogonal axis, total 18 shocks. vibration single axis 10-500 hz at 2 g x 10 sweeps electromagnetic compatibility - emissions electromagnetic compatibility - immunity phenomenon standard test level criteria notes & conditions harmonic current en61000-3-2 class a class d eft en61000-4-4 3 a surges en61000-4-5 installation class 3 a magnetic immunity en61000-4-8 class 3 a dips and interruptions en61000-4-11 30% 10 ms a 60% 100 ms b 100% 5000 ms b phenomenon standard test level criteria notes & conditions conducted en55022 class b see fig. 21 radiated en55022 class a voltage fluctuations en61000-3-3 safety agency approvals figure 21 typical emc plot safety agency safety standard category cb report ul us/14622b/ul iec60950-1:2005 ed. 2 information technology ul ul file #e139109 ul60950-1 (2005) 2nd edition information technology tuv tuv certificate #b 1101 57396 087 en60950-1/a11:2009 information technology ce lvd
5.80 (147.30) 6.80 (172.72) 0.80 (2.02) 2.00 (50.79) 2.00 (50.79) 0.60 (15.20) airflow 2.00 (50.80) 3.32 (84.50) 0.66 (16.80) 3.32 (84.50) ac input interface connector v1(+) v1(-) logic connector voltage adjust output interface connector 4 x m3-0.5 mounting thread 0.236 (6.0) max screw penetration bottom side of power supply. max torque 4.5-5.0 in-lb (0.045-0.057 kg-m) xppower.com 12 3.20 (81.3) 1.50 (38.1) 3.20 (81.3) airflow 2 x 2.00 (50.8) 2 x 0.60 (15.3) 6.80 (172.7) ac input interface conn 2 x 0.60 (15.2) 2 x 1.50 (38.1) 2 x 0.75 (19.1) 2 x 0.60 (15.2) 2 x 6.80 (172.7) 2 x 5.80 (147.3) 2 x 5.80 (147.3) logic connector voltage adjust dc output interface connector v1() v1(-) 8 x m3-0.5 mounting thread 0.236 (6.0) max screw penetration tp on all sides of power suppl max torue 4.0-5.0 in-lb (0.045 - 0.057 kg-m) a a a a a a br1 t3 l3 d35 a a jp1 (enable) fan connector v2 c63 c8 notes 1. all dimensions in inches (mm). 2. tolerance: x.xx = 0.02 (0.50), x.xxx = 0.01 (0.25) mechanical details u channel version top fan version (suffix tf)
xppower.com 13 airflow 8.28 (210.31) 1.75 (44.45) 4.00 (10.16) v1(+) v1(-) logic connector voltage adjust output interface connector 0.08 (2.03) 0.66 (16.84) 1.37 (34.92) 2.00 (50.80) 1.75 (44.45) 6.80 (172.70) 8.20 (208.28) 3.32 (84.48) 3.32 (84.47) 1.75 (44.45) ac input interface connector 5 x m3-0.5 mounting thread 0.236 (6.0) max screw penetration bottom side of power supply. max torque 4.5-5.0 in-lb (0.045-0.057 kg-m) 0.60 (15.20) 8.20 (208.28) 7.20 (182.88) 5.80 (147.32) pin connections logic connector j3 jst b10b-phdss (lf) (sn) 1 ac ok 2 rof (inhibit/enable) 3 current share 4 dc ok 5 not used 6 +sense 7 -sense 8 not used 9 5 v standby v3 10 5 v standby return v3 mechanical details - pin connections pin connections ac input j1 molex 26-60-4050 1 gnd 3 neutral 5 line pin connections dc output j2 molex 26-60-4100 1 +v1 2 +v1 3 +v1 4 +v1 5 +v1 6 -v1 7 -v1 8 -v1 9 -v1 10 -v1 pin connections fan output j4 molex 22-04-1021 1 -v2 2 +v2 mating parts: molex 09-50-3051 or housing 43061-0005 contact 08-70-1030 option -s screw terminals phoenix contact: mkds 1/5-3.81 or similar accepts 26-16 awg wire (contacts 2 & 4 removed) max torque 1.73 in-lb (0.02 kg-m) mating parts: molex 09-50-3101 or housing 43061-0010 contact 08-70-1030 option -s screw terminals 2 x phoenix contact: mkds 1/5-3.81 or similar accepts 26-16 awg wire max torque 1.73 in-lb (0.02 kg-m) mating parts: jst housing phdr-10vs contact sphd-001t-p0.5 mating parts: molex housing 22-01-1024 contact 08-70-0057 notes 1. all dimensions in inches (mm). 2. tolerance: x.xx = 0.02 (0.50), x.xxx = 0.01 (0.25) mechanical details end fan version (suffix ef)
xppower.com 14 09-may-12 thermal considerations (u channel) in order to ensure correct and reliable operation of the psu in the most adverse conditions permitted in the end-use equipment, the temperature of the components listed in the table below must not be exceeded. see drawing on page 12 for component locations. temperature should b e monitored using k type thermocouples placed on the hottest part of the component (out of any direct air flow). temperature measurements (ambient 50 oc) component max temperature o c t3 90 c br1 105 c d35 85 c l3 90 c

▲Up To Search▲

Price & Availability of MFA420PS12

	To Download MFA420PS12 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .