the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. ld12-20bxx a/2-2012 page1 of 5 selection guide approval model package power output (vo/io) ripple and noise (typ.) efficiency (%)(typ.) standby power (max.) ld12-20b03 7.9w 3.3v/2400ma 74 ld12-20b05 5v/2400ma 78 ld12-20b12 12v/1000ma 82 ld12-20b15 15v/800ma 82 ul/ce ld12-20b24 53.8x28.8x23.5mm 12w 24v/500ma 50mv 83 0.3w input specifications input voltage range 85 264vac, 120 370vdc input frequency 47 440hz input current 110vac 280ma, typ 230vac 190ma, typ inrush current 110vac 10a, typ 230vac 20a, typ recommended external input fuse (special package series include fuse) 3.15a/250v slow-blow output specifications voltage set accuracy 2% input variation 0.5% (typ) load variation (10% to 100% load) 1% (typ) min load 0% ripple& noise(p-p) (20mhz bandwidth) 100mv (max) short circuit protection continuous, and auto resume over current protection 110% io and auto resume over voltage protection zener diode clamp ld12 series 12w, ac-dc converter ld12 series ----- are the 12w compact size power converter offered by mornsun. it features universal input voltage, taking both dc and ac input voltage, low power consumption, low ripple& noise , high efficiency, high reliability, 4000vac safer isolation. it offers good emc performance, meet iec/en61000-4, cispr22/en55022, ul60950 and en 60950 standards, and widely used in industrial, electricity, i nstruments, telecommunication and civil applications. for harsh emc environment, this series of products must use the refered application circuit. rohs e235235 product features 1. universal input :85 264vac/120 370vdc 2. ac and dc dual-use(input from the same terminal) 3. super small volume 4. 4000vac safer isolation 5. low ripple and noise 6. high efficiency, low loss, green environmental protection 7. output over voltage, short circuit and over current protection 8. meet ul60950 and en60950 standards 9. three years warranty 10. mounting: pcb mounting, chassis mounting with screw terminals, din-rail mounting part number system LD12-20B12A2
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. ld12-20bxx a/2-2012 page2 of 5 ld12-20b03 10000 ld12-20b05 10000 ld12-20b12 5400 ld12-20b15 2700 maximum capacitive load ( f) ld12-20b24 1500 common specifications operating -40 +70 (55 70) 3.3% / power derating (-40 0) 1% / storage -40 +105 temperature ranges case temperature +90 max (vin=230vac) 50ms(typ) hold-up time (vin=115vac) 10ms(typ) humidity 95%(max) temperature coefficient 0.02%/ switching frequency 100khz(typ) i/o-isolation voltage 4000vac/1min ce cispr22/en55022, class b(without external circuit) emi re cispr22/en55022, class b(without external circuit) esd iec/en 61000-4-2 contact 6kv /air 8kv perf. criteria b rs iec/en 61000-4-3 10v/m perf. criteria a eft iec/en 61000-4-4 4kv(without external circuit) perf. criteria b iec/en 61000-4-5 2kv(without external circuit) perf. criteria b surge iec/en 61000-4-5 4kv/ 6kv (with typical applications figure 3) perf. criteria b cs iec/en61000-4-6 10 vr.m.s perf. criteria a pfm iec/en61000-4-8 10a/m perf. criteria a emc ems voltage dips short and interruptions immunity iec/en61000-4-11 0%-70% perf. criteria b safety standards iec60950/en60950/ul60950 safety approvals en60950/ul60950 safety class class case material ul94v-0 install pcb mounting, chassis mounting with screw terminals, din-rail mounting cooling free air convection mtbf >300,000h @25 package pcb mounting chassis mounting with screw terminals din-rail mounting 53.8x28.8x23.5mm 96.1x54.0x32.0mm 96.1x54.0x36.6mm weight 60g(pcb mounting) 110g(chassis mounting with screw terminals) 150g(din-rail mounting) note : 1. ripple and noise were measured by the method of anear measure; 2. all specifications measured at t a =25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. parallel lines measure ac-dc +vo -vo fuse l n 25.4mm 25.4mm c1 c2 12.7mm copper sheet connect oscillograph probe load l n c1: 1 f (ceramic capacitor) c2: 10 f (electrolytic capacitor)
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. ld12-20bxx a/2-2012 page3 of 5 temperature vs load input voltage vs load load(%) temperature( ) 0 -40 55 70 50 40 100 60 80 load(%) input voltage(vac) 20 40 100 60 80 100 240 85 264 70 340 120 370 20 40 100 60 80 100 70 load(%) input voltage(vdc) typical applications l +vo -vo l n n + ntc fuse c1 c2 tvs rl figure 1: ld12-20bxx emc application circuit l n +vo -vo ac-dc l n +vo -vo figure 2: note: this application is not supported for this series. can use mornsun s fc-l01d2 output ??? fc-l01d2 n l n l lcm mov1 mov2 mov3 r2 r1 r3 cx mov4 mov5 cy1 cy2 gdt4 acdc fuse figure 3: ld12 series recommended circuit for application require higher emc standard (external circuit output same as above) figure 4:emc application circuit pcb layout safety and recommend wiring: linewidth a 3mm,c 9mm external circuit parameters model c1 c2 tvs ld12-20b03 1 f /50v 220 f /10v smbj7.0a ld12-20b05 1 f /50v 220 f /10v smbj7.0a ld12-20b12 1 f /50v 120 f /25v smbj20a ld12-20b15 1 f /50v 120 f /25v smbj20a ld12-20b24 1 f /50v 68 f/50v smbj30a note: 1. c1 is ceramic capacitor, it is used to filter high frequency noise. output filtering capacitors c2 is electrolytic capacitors, it is recommended to use high frequency and low impedance electrolytic capacitors. for capacitance and current of capacitor please refer to manufacture s datasheet. voltage derating of capacitor should be 80% or above. tvs is a recommended component to protect post-circuits (if converter fails). external input ntc model is recommended to use 5d-9. 2. for standard emc requirement, please refer to figure 1, if higher emc requirement, please refer to figure 3 . mov1 561kd20 mov2 mov3 561kd14 mov4 mov5 561kd07 gdt4 b5g3600 cx 0.15 f/300vac cy1 cy2 222m/400vac r1 r2 2 /3w wirewound r3 1m /2w lcm 10mh-30mh fc-l01d2 4kv/6kv surge protector 3. fuse ld12 is recommended to use 3.15a/250v.
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. ld12-20bxx a/2-2012 page4 of 5 pcb mounting with solder pins 1 3 4 2 n l +vo - vo recommendedfootprint 1.50[0.059] 2 1 3 4 (bottom view) note: grid2.54*2.54mm. footprint details pin function note: unit: mm[inch] pin diameter tolerances: .10mm[ 0.004inch] general tolerances: 0.50mm[ 0.020inch] 0 (front view) 2 3 . 5 0 6 . 0 0 [ 0 . 9 2 5 ] [ 0 . 2 3 6 ] 1.00 [0.039] 53.80[2.118] 1 0 . 1 6 2 8 . 8 0 [ 1 . 1 3 4 ] 45.72[1.800] 1 0 . 1 6 1 0 . 1 6 1 2 3 4 [ 0 . 4 0 0 ] [ 0 . 4 0 0 ] [ 0 . 4 0 0 ] ld12xxa2 chassis mounting with screw terminals footprint details pin 1 2 3 4 5 6 7 8 function nc ac(n) ac(l) +vo nc -vo nc nc 8.50 [0.335] 20.60 [0.811] 3 2 . 0 0 [ 1 . 2 6 0 ] 86.10 [3.390] 96.10 [3.783] 4 6 . 0 0 [ 1 . 8 1 1 ] 5 4 . 0 0 [ 2 . 1 2 6 ] 2 3 1 4 5 6 7 8 3 .50 [0.138] ( ) topview ( ) frontview note: unit: mm[inch] general tolerances: 0.50mm[ 0.020inch] ld12xxa4 din-rail mounting *meet normal 35mm din-rail package footprint details pin 1 2 3 4 5 6 7 8 function nc ac(n) ac(l) +vo nc -vo nc nc 86.10 [3.390] 96.10 [3.783] 4 6 . 0 0 [ 1 . 8 1 1 ] 5 4 . 0 0 [ 2 . 1 2 6 ] 2 3 1 4 5 6 7 8 8.50 [0.335] 20.60 [0.811] 3 2 . 0 0 [ 1 . 2 6 0 ] 3 6 . 6 0 [ 1 . 4 4 1 ] ( ) topview ( ) frontview note: unit: mm[inch] general tolerances: 0.50mm[ 0.020inch]
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. ld12-20bxx a/2-2012 page5 of 5 package diagram pcb mounting series special package series inner packaging dimensions:l*w*h=355*192*93mm packaging quantity: 40pcs outer packaging dimensions:l*w*h=405*380*305mm packaging quantity: 240pcs inner packaging box dimensions: l*w*h=365*350*105mm packaging quantity: 24pcs outer packaging box dimensions: l*w*h=390*360*245mm packaging quantity: 48pcs mornsun science & technology co.,ltd. address: no. 5, kehui st. 1, kehui development center, science ave., guangzhou science city, luogang district, guangzhou,p.r.china. tel: 86-20-28203030 fax:86-20-38601272 http://www.mornsun-power.com
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