unisonic technologies co., ltd m54123l linear integrated circuit www.unisonic.com.tw 1 of 9 copyright ? 2009 unisonic technologies co., ltd qw-r122-001,d earth leakage current detector ? description the utc m54123l is a semiconductor integrated circuit with amplifier for a high-speed earth leakage circuit breaker. for the amplifying parts of eart h leakage circuit breaker, the utc m54123l consists of differential amplifier, latch circuit and voltage regulator. in normal operating, the utc m54123l should be connected to the secondary side of the zct (zero current transformers). here the zct detects leakage current di fferent amplifiers? both input. then the signals which have been amplified are integrated by an external capacitor. the integrated signal connects to the input terminal of latch circuit whose output is suitable for the characteristics of high- speed earth leakage circuit breaker. until the input voltage reaches t he fixed level, latch circuit doesn?t become high. then drives a thyristor which is connected to latch circuit?s output terminal. ? features * with good input sensitivity current temperature characteristics * high input sensitivity :v t =6.1mv (typ.) * only need low external component count * high noise and surge-proof * low power dissipation :p d =5mw (typ.) * may be used both as 100v and 200v. * wide temperature range : from -20 c to +80c dip-8 sop-8 sip-8 lead-free: m54123lk halogen-free:m54123lg ? ordering information ordering number normal lead free plating halogen free package packing M54123L-S08-R m54123lk-s08-r m 54123lg-s08-r sop-8 tape reel m54123l-d08-t m54123lk-d08-t m54123lg-d08-t dip-8 tube m54123l-g08-t m54123lk-g08-t m54123lg-g08-t sip-8 tube
m54123l linear integrated circuit unisonic technologies co., ltd 2 of 9 www.unisonic.com.tw qw-r122-001,d ? pin configurations 12345678 1 2 3 4 8 7 6 5 v r in gnd o d s c n r o s v s sip-8 sop-8 ? pin description pin no. pin name description 1 v r reference voltage terminal 2 in input terminal 3 gnd ground 4 o d differential amplifier output terminal 5 s c latch input terminal 6 n r terminal for noise absorption 7 o s output terminal 8 v s supply voltage terminal
m54123l linear integrated circuit unisonic technologies co., ltd 3 of 9 www.unisonic.com.tw qw-r122-001,d ? block diagram amp vs gnd reference voltage generator + - vr reference voltage in input o d differential amplifier output sc latch input n r terminal for noise absorption os output 8 3 1 6 4 5 7 2 latch circuit
m54123l linear integrated circuit unisonic technologies co., ltd 4 of 9 www.unisonic.com.tw qw-r122-001,d ? absolute maximum rating (unless otherwise specified) parameter symbol ratings unit supply current i s 8 ma between v r -in (note 2) 250 ma between v r -gnd 30 ma v r pin current between in-v r (note 2) i vr -250 ma between in-v r (note 2) 250 ma between in-gnd 30 ma in terminal current between v r -in (note 2) i in -250 ma s c terminal current i sc 5 ma power dissipation p d 200 mw operating temperature t opr -20~ +80 c storage temperature t stg -55~ +125 c notes: 1. absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. 2. current value between v r and in, and between in and v r is less than 1ms in t he pulse width, and duty cycle is less than 12%, in applying ac current continuously, it is 100 ma in the off-state. ? recommended operating conditions (unless otherwise specified) parameter symbol min typ max unit supply voltage when latch circuit is off-state v s 12 v external capacitor between vs and gnd c vs 1 f external capacitor between os and gnd c os 1 f ? electrical characteristics (ta=-20~+80c, unless otherwise specified) parameter symbol test conditions min typ max unit ta=-20c 580 a ta=25c 400 530 a supply current i s1 v s =12v,v r -v i =30mv (see test circuit 1) ta=80c 480 a trip voltage v t v s =16v, v r -v i , ta=-20~+80c (note2) (see test circuit 2) 4 6.1 9 mvrms timed current1 i td1 vs=16v, v r -v i =30mv, v od =1.2v, ta=25c (see test circuit 3) -12 -30 a timed current2 i td2 v s =16v, short circuit between v r and v i , v od =0.8v, ta=25c (see test circuit 4) 17 37 a i s1 =580 a,ta=-20c -200 a i s1 =530 a,ta=25c -100 a output current i o v sc =1.4v,v os =0.8v (see test circuit 5) i s1 =480 a,ta=80c -75 a s c ?on? voltage (note3) v sc(on) v s =16v, ta=25c (see test circuit 6) 0.7 1.4 v s c input current i sc(on) v s =12v, ta=25c (see test circuit 7) 5 a output low-level current i osl v s =12v,v osl =0.2v, ta=-20~+80c (see test circuit 8) 200 a input clamp voltage v ic v s =12v, i ic =20ma, ta=-20~+80c (see test circuit 9) 4.3 6.7 v differential input clamp voltage v idc i idc =100ma, ta=-20~+80c (see test circuit 10) 0.4 2 v maximum current voltage v sm i sm =7ma, ta=25c (see test circuit 11) 20 28 v supply current 2(note 4) i s2 v r -v i , v os =0.6v, ta=-20~+80c (note 5) (see test circuit 12) 1100 a latch circuit is off-state supply voltage (note6) v s(off) ta=25c (see test circuit 13) 0.5 v operating time (note 7) t on v s =16v,v r -v i =0.3v, ta=25c (see test circuit 14) 2 4 ms
m54123l linear integrated circuit unisonic technologies co., ltd 5 of 9 www.unisonic.com.tw qw-r122-001,d ? electrical characteristics (cont.) notes: 1. typical values are at ta=25c 2. when standard value of voltage (60hz) between v r and v i is minimum, and output o s is low-level, or when standard value of voltage (60hz) between v r and v i is maximum, and output o s is high-level, it is considered as a good one. 3. when standard value of voltage v sc(on) is minimum, and output o s is low-level, or when standard value of voltage v sc(on) is maximum, and output o s is high-level, it is considered as a good one. 4. supply current 2 is neces sary to keep high in output o s . 5. after applying 30mv between v r and v i and shorting between them, it is considered as a good one if standard value of igt flows out of output o s. 6. after supply voltag e applies 12v and output o s is high-level, it is considered as a good one in the standard value of supply voltage an d in the low-level of output o s . 7. operating time is a time from applying fi xed input till operating latch circuit in 0.047 f between o d and gnd.
m54123l linear integrated circuit unisonic technologies co., ltd 6 of 9 www.unisonic.com.tw qw-r122-001,d ? test circuits 1 4 10 13 note: the unit of resistance is ohm. please insurt 0.01f between pin 1 and pin 3 in test v r in gnd o d sc n r os vs 100 v i open vs is v r in gnd o d sc n r os vs 100 v i open vs 2 1k v os 3 v r in gnd o d sc n r os vs 100 v i open vs v od i td1 v r in gnd o d sc n r os vs 100 v i open vs v od i td2 5 v r in gnd o d sc n r os vs open is open open vsc 3k vos 6 v r in gnd o d sc n r os vs 100 v i open vs open 3k vos vsc ?on? v r in gnd o d sc n r os vs 100 v i open vs 0.047 f open vos isc ?on? 0.047 f v r in gnd o d sc n r os vs 100 v i open vs 0.047 f open ios l 8 vos l 0.047 f v r in gnd o d sc n r os vs 100 v ic open vs 0.047 f open 0.047 f 9 i ic v r in gnd o d sc n r os vs v idc open i idc v r in gnd o d sc n r os vs 100 v i open ism 0.047 f open 11 0.047 f vsm v r in gnd o d sc n r os vs 100 v i open 0.047 f 0.047 f vos is 2 12 0.047 f i gt v r in gnd o d sc n r os vs 100 v i open 0.047 f 0.047 f vos v s "off" 0.047 f v r in gnd o d sc n r os vs 100 v i open 0.047 f 0.047 f v s 0.047 f 14 1 2 3 4 5 6 7 8 0.047 f 0.047 f 1 2 3 4 5 6 7 8 vsm 0.047 f 0.047 f 1 2 3 4 5 6 7 8 0.047 f 0.047 f 1 2 4 5 6 7 8 0.047 f 0.047 f 3 1 2 4 5 6 7 8 3 0.047 f 0.047 f 1 2 3 4 5 6 7 8 0.047 f 0.047 f 0.0 47 f 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
m54123l linear integrated circuit unisonic technologies co., ltd 7 of 9 www.unisonic.com.tw qw-r122-001,d ? typical application circuit high-speed leakage circuit breaker with utc m54123l utc m54123l trip coil v s gnd ac line zct scr (note) cr2am cr03am cro2am note: gate current must be selected . please select voltage resistance by ac supply voltage r2 r l 1 2 4 5 6 7 3 8 r p =100 ? c6 c4 ac line c1 c2 c3 c5 r1 { note: the value of r1, r2, c4, and c5 should be chosen in order to keep at least 12v in vs. please connect c4 ( > 1 f) and c2 ( < 1 f). zct and load resistance r l of zct are connected between input pin 1 and 2. protective resistance (r p =100 ? ) must be insurted. r l and amplifier?s output (in pin 4) regulates sensitivity current external capacitor c1 between pin 4 and gnd is used for noise removal. please connect a varistor or a diode (2 pcs.) to zct in parallel, because of when large current is grounded in the primary side (ac line) of zct, the following situation can be abandoned: the wave form in the secondary side of zct is distorted and some signals do not appear in the output of amplifier. please connect capacitor (about 0.047 f) between pin 6 and pin 7. capacitor c6 between pin 1 and gnd is about 0.047 f for removing noise. 170 30 7 5 3 1 100 50 operating time vs. input voltage input voltage, v1 (mvrms) 10 300 500 1000 3 5 70 30 7 100 50 10 300 500 1000 700 c1=0.047f ta=25c 60hz
m54123l linear integrated circuit unisonic technologies co., ltd 8 of 9 www.unisonic.com.tw qw-r122-001,d ? typical characteristics 8 2 20 18 16 14 12 10 0 12 10 8 6 4 0 200 30 25 20 15 10 5 100 700 600 500 400 300 vcc voltage vs. supply voltage vcc voltage, v cc (v) supply voltage, vs (v) vcc voltage generates by the constant voltage circuit in ic. this is measured not by m54123l but by a special element. supply current 1 vs. supply voltage supply current 1, is1 (a) supply voltage, vs (v) 25c 75c ta=-25c 25c 75c ta=-25c 0 0.5 20 16 12 8 4 0 2.5 2.0 1.5 1.0 -40 100 80 40 20 0 -20 0 500 400 300 200 100 60 1000 900 700 800 600 reference voltage vs. supply voltage reference voltage, v r (v) supply voltage, vs (v) bias current vs . ambient temperature bias current, i in (na) ambient temperature, ta (c) 25c -25c ta=75c 5 0.5 10 9 8 7 6 0 2.5 2.0 1.5 1.0 -40 80 40 20 0 -20 0 -20 -10 100 60 -50 -40 -30 differential amplifier output voltage vs . differential input voltage differential input voltage v i =v r -v in (mv) differential amplifier output voltage, v od (v) timing current vs . ambient temperature ambient temperature, ta ( c ) timed current 1, itd1 (a) 25c -25c ta=75c
m54123l linear integrated circuit unisonic technologies co., ltd 9 of 9 www.unisonic.com.tw qw-r122-001,d ? typical characteristics(cont.) -50 2.5 100 75 50 25 0 -25 2 4.5 4 3.5 3 operating time vs. ambient temperature operating time, ton (ms) 0.4 1.6 1.2 1 0.8 0.6 0 4 2 1.8 1.4 8 6 os voltage vs. sc voltage s c voltage, v sc (v) os voltage, vos (v) ambient temperature, ta c ta=75c 25c -25c 06 4 3 2 1 0 -200 -100 7 5 -400 -300 o s output voltage, v os (v) output current, io (a) output current vs. os output votltage -50 2 100 75 50 25 0 -25 0 10 8 6 4 trip voltage vs. ambient temperature trip voltage, v t (mvrms) ambient temperature, ta (c) ta=-25c 25c 75c utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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