the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. LO10-26D0512-04 2013.04.26-a/1 page 1 of 4 LO10-26D0512-04 three-phase three wire or four wire open frame switched-mode power supply high isolated, ultra wide input voltage range ac-dc converter for electric meters ultra wide input voltage range open frame switched-mode power supply for electric-meter application this ac-dc converter is designed for electric- meter application and operates over a very wide input voltage range: 65-460vac or 90- 650vdc. it means that this converter can operate with any two wires connection from the three-phase three wire or four- wire system. when failures happen in the lines system resulting in input over- voltage, the converter will shut down to protect itself and the terminal devices from damage, improving the reliability of the system. the isolation voltage is 4000vac between input and output, and two outputs. the product meets iec/en61000 "b urst (4kv)", "surge (2kv)" and "en55022 class b conduction/ radiation". so it is a design solution for electric-meter application sourced from a three- phase ac supply with the requirement of high isolation voltage and rigorous emc. rohs features 1. ultra wide input voltage range: 65~460vac/90~650vdc 2. any two wires connection from the three-phase three wire or four-wire system is available 3. conduction/radiation: class b 4. burst/surge: class 4 5. multi-output protection functions: over-current protection, short circuit protection, over-voltage protection 6. input under voltage and over-voltage protection 7. high efficiency, high reliability, low ripple & noise, low standby power consumption 8. long-life low-impedance electrolytic capacitors 9. multi-output, customized available part number system LO10-26D0512-04 product series isolation voltage main output outputvoltage package style output power output style input voltage supplementoutputvoltage supplementoutputtcurrent selection guide output model power (w) (vo1/io1) (vo2/io2) efficiency (%) (220vac,typ) standby power (220vac,typ) LO10-26D0512-04 10.92 5.1vdc/1.2a 12vdc/0.4a 78 0.55w input specifications item test conditions min. typ. max. unit ac input 65 -- 460 input voltage range dc input 90 -- 650 input over-voltage protection ac input 470 -- 540 v input frequency 47 -- 440 hz input current -- -- 0.4 a output specifications item test conditions min. typ. max. unit main output(vo1) -- 2 -- output voltage accuracy balance load secondary output(vo2) -- 10 -- main output(vo1) -- 0.5 -- line regulation full load secondary output(vo2) -- 1.5 -- main output(vo1) -- 3 -- load regulation (10% to 100%)balance load secondary output(vo2) -- 5 -- %
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. LO10-26D0512-04 2013.04.26-a/1 page 2 of 4 main output(vo1) -- -- 100 ripple& noise(p-p) 20mhz bandwidth secondary output(vo2) -- -- 200 mv min load 10 -- -- % main output(vo1) -- 4000 -- capacitor load max secondary output(vo2) -- 1200 -- f hold-up time -- 200 -- ms short circuit protection continuous, and auto recovery over current protection 110~250% io and auto recovery over voltage protection feedback-clamp common specifications item test conditions min. typ. max. unit operating temperature -40 -- +70 storage temperature -40 -- +85 -40 ~0 0.75 -- -- power derating +60 ~+70 3.00 -- -- % / isolation resistance 100 -- -- m input-output1 and output 2 4000 -- -- isolation voltage output 1- output 2 tested for 1 minute 4000 -- -- vac storage humidity 20 -- 90 %rh main output vo1 -- 0.02 -- temperature coefficient secondary output vo2 -- 0.06 -- %/ altitude -- -- 9000 m switching frequency -- 65 -- khz safety approvals -- safety class class safety standards -- hot swap forbid vibration 10~55hz,19.6m/s 2 (2g),3min; x,y,z 1 time shock 196.1m/s 2 (2g),11ms; x,y,z axis 1 time weight 95g outline size 100mm l 50mm w 35mm h install pcb cooling free air convection mtbf 300 000 h @ 25 note:1. ripple and noise are measured by the method of parallel lines; 2. unless otherwise specified, all specifications above are measured at rated input voltage and rated output load, ta=25, humidity < 75%. 3.the output voltage will drop when over current protection start up, coming into hiccup protection state, and it can auto resume normal operating when the malfunction is eliminated. emc specifications ce cispr22/en55022, class b(without external circuit ) emi re cispr22/en55022, class b(without external circuit ) esd iec/en61000-4-2 6kv/8kv perf. criteria b rs iec/en61000-4-3 10v/m perf. criteria a iec/en61000-4-4 4kv(without external circuit ) eft iec/en61000-4-4 4.4kv (external circuit refer to figure 2,3) perf. criteria b iec/en61000-4-5 2kv(without external circuit ) surge iec/en61000-4-5 4.4kv (external circuit refer to figure 2,3) 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 ems voltage dips, short and interruptions immunity iec/en61000-4-11 0%-70% perf. criteria b
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. LO10-26D0512-04 2013.04.26-a/1 page 3 of 4 parallel lines measure ac/dc +vo -vo copper sheet load connect oscillograph probe fuse ac(l) ac(n) 25.4mm 25.4mm c1 c2 12.7mm ac(l) ac(n) note: c1: 1 f (ceramic capacitor) c2: 10 f (electrolytic capacitor) product typical curve efficiency vs input voltage curve (full load) 50 55 60 65 70 75 80 85 90 65 85 110 220 380 460 input voltage(vac) efficiency(%) efficiency vs output load curve (vin=220vac) 50 55 60 65 70 75 80 85 90 95 10 20 30 40 50 60 70 80 90 100 total output current (%) efficiency(%) -25 0 10 20 30 40 50 60 70 100 70 0 -40 ambient tem.() temperature derating graph o u t p u t p o w e r p e r c e n t ( % ) input voltage:85~460vac note: when input 65~85vac, it need to be voltage derated on basis of temperature derating. 85 460 65 40 100 60 80 input voltagevac ambient temperature: 25 input voltage derating graph o u t p u t p o w e r p e r c e n t ( % ) note: when input dc, vdc=1.414*vac-20. typical applications + - c1 c4 c3 c2 - vo1 vo2 tvsrl rl ac(l) ac(l) ac(n) + ac(n) fuse figure1: typical application circuit for LO10-26D0512-04 note: output filtering capacitors c2,c4 is electrolytic capacitors, it is recommended to use high frequency and low impedance electrolytic capacitors. recommended value (c2:220 f/10v; c4:100 f/25v); c1,c3 are ceramic capacitors and they used to filter high frequency noise, recommend value:0.1 f/50v, it is recommended that the 5.1v main output circuit adds tvs to protect post-circuits (if converter fails);and the 12v supplement output circuit has had tvs inside so it needs no external tvs. emc recommended circuit figure 2:recommended circuit for applications which require 4.4kv differential-mode inrush standard (full-wave rectification)
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. LO10-26D0512-04 2013.04.26-a/1 page 4 of 4 figure 3:recommended circuit for applications which require 4.4kv differential-mode inrush standard (half-wave rectification) if higher emc requirement ,please refer to figure 2.3, recommended parameters are shown in the table below. recommend parameter for higher emc standard circuit components recommend parameter mov s20k550 cx 0.15 f ldm 56 h lcm 3mh c1 c2 47 f/400vdc r4 r5 r6 r7 560k /1206 d 2a/1000v r1 r2 r3 5 /5w fuse 3.15a/250v slow blow, it must be connected to fuse dimensions, recommended footprint&packaging 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: 86-20-38601850 fax:86-20-38601272 e-mail: info@mornsun.cn http://www.mornsun-power.com
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