M54123L

M54123L UTC | Alldatasheet

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UTC M54123L LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R122-001,B EARTH LEAKAGE CURRENT DETECTOR

DESCRIPTION

The UTC M54123L is a semiconductor integrated circuit with amplifier for a high-speed earth leakage circuit breaker.

FEATURES

*Suitable for JIS C 8371 *Good temperature characteristics of input sensitivity current *High input sensitivity (V T=6.1mV Typ.) *Low external component count *High noise and surge-proof *Low power dissipation (Pd=5mW Typ.) and may be used both as 100V and 200V. *Wide temperature range (Ta=-20~+80°C) DIP-8 SOP-8 SIP-8 APPLICATION *High speed earth leakage circuit breaker. FUNCTION The UTC M54123L circuit for the amplifying parts of earth leakage circuit breaker consists of differential amplifier, latch circuit and voltage regulator. It is connect ed to the secondary side of the zero current transformer (ZCT) which detects leakage current in the both input of t he differential amplifier. Signals amplified by differential amplifier are integrated by an external capacitor, and connects to the input terminal of latch circuit with output suitable for the characteristics of high- speed earth leakage circuit breaker. Latch circuit keeps low in the output till the input voltage reaches the fixed level, and output becomes high when the leakage current more than fixed flows. It drives a thyristor connected to the output terminal of latch circuit.

UTC M54123L LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R122-001,B PIN CONFIGURATIONS (TOP VIEW) BLOCK DIAGRAM 2 4 5 6 Vs GND Reference voltage generator latch circuit AMP VR Reference voltage IN Input OD Differential amplifier output Sc Latch input NR Terminal for noise absorption Os output

UTC M54123L LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R122-001,B ABSOLUTE MAXIMUM RATINGS (Ta=-20~80°C, unless otherwise noted) PARAMETER SYMBOL CONDITIONS RATINGS UNIT Supply current Is 8 mA VR pin current Between V R-IN (Note 1) 250 Between V R-GND 30 IVR Between IN-VR(Note 1) -250 mA IN terminal current Between IN-V R(Note 1) 250 Between IN-GND 30 IIN Between VR-IN (Note 1) -250 mA Sc terminal current Isc 5 mA Power dissipation Pd 200 mV Operating temperature Topr -20 to +80 °C Storage temperature Tstg -55 to +125 °C Note 1: Current value between V R and IN, and between IN and V R is less than 1ms in the pulse width, and duty cycle is less than 12%, In applying AC current continuously, it is 100 mA in the off-state. Remarks: GND terminal (pin 3 of the circuit is a basis of all the voltage except differential input clamp voltage of DC electrical characteristics, and direction of current is plus(no signal) in flowing into the circuit and is minus(-signal)in flowing out of it. Maximum value and minimum one are shown as absolute value. Please do not apply voltage whose standard is GND terminal in V R and IN pin. RECOMMENDED OPERATING CONDITIONS (Ta=-20~+80°C, unless otherwise noted) PARAMETER LIMITS SYMBOL MIN TYP MAX UNIT Supply Voltage when latch circuit is off-state Is 12 V External capacitor between Vs and GND Cvs 1 µF External capacitor between Os and GND Cos 1 µF ELECTRICAL CHARACTERISTICS (Ta=-20~+80°C, unless otherwise noted) PARAMETER SYMBOL TEST CONDITIONS LIMITS UNIT TEMPERA -TURE (°C) TEST CIRCUIT MIN TYP* MAX Supply current -20 1 580 25 1 400 530 Is1 Vs=12V,V R-V1=30mV 80 1 480 µA Trip voltage V T Vs=16V, V R-V1(Note2) -20~+80 2 4 6.1 9 mV Timed current1 I TD1 Vs=16V, VR-V1=30mV VOD=1.2V 25 3 -12 -30 µA Timed current2 I TD2 Vs=16V, short circuit between VR and V1, VOD=0.8V 25 4 17 37 µA Output current I S1=580µA -20 5 -200 I S1=530µA 25 5 -100 Io VSC=1.4V, VOS=0.8V, IS1=480µA 80 5 -75 µA Sc “ON” voltage (Note3) V SC”ON” Vs=16V 25 6 0.7 1.4 V Sc input current I SC”ON” Vs=12V 25 7 5 µA Output low-level current Iosl Vs=12V,Vosl=0.2V -20~+80 8 200 µA Input clamp voltage V IC Vs=12V, I IC=20mA -20~+80 9 4.3 6.7 V

UTC M54123L LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R122-001,B PARAMETER SYMBOL TEST CONDITIONS LIMITS UNIT TEMPERA -TURE (°C) TEST CIRCUIT MIN TYP* MAX Differential input clamp voltage VIDC I IDC=100mA -20~+80 10 0.4 2 V Maximum current voltage V SM I SM=7mA 25 11 20 28 V Supply current 2(Note 4) IS2 V R-V1, Vos=0.6V (Note 5) -20~+80 12 900 µA Latch circuit is off-state supply voltage (Note6) VS ”OFF” 25 13 0.5 V Operating time (Note 7) T ON Vs=16V,V R-V1=0.3V 25 14 2 4 ms *: Typical values are at Ta=25°C. Note 2: When standard value of voltage (60Hz) between V R and VI is minimum, and output Os is low-level, or when standrd value of voltage(60Hz)between VR and VI is maximum, and output Os is high-level, it is considered as a good one. Note 3: When standard value of voltage V SC”ON” is minimum, and output Os is low-level, or when standard value of voltage VSC”ON” is maximum, and output Os is high-level, it is considered as a good one. Note 4: Supply current 2 is necessary to keep high in output Os. Note 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 Os Note 6: After supply voltage applies 12V and output Os is high-level,it is considered as a good one in the standard value of supply voltage and in the low-level of output Os. Note 7: Operating time is a time from applying fixed input till operating latch circuit in 0.047 µF between O D and GND.

UTC M54123L LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R122-001,B TEST CIRCUIT Note: The unit of resistance is ohm. Please insurt 0.01 between pin and pin in test 1 54 6 8732 VR IN GND OD Sc N R Os Vs 100 VI Open 0.047 µF 0.047 µF Vs Is 1 54 6 8732 VR IN GND OD Sc N R Os Vs 100 VI Open 0.047 µF 0.047 µF Vs Vsm 0.047 µF vos 1 54 6 8732 VR IN GND OD Sc N R Os Vs 100 VI Open 0.047 µF Vs VOD ITD1 1 54 6 8732 VR IN GND OD Sc N R Os Vs 100 VI Open 0.047 µF Vs VOD ITD2 0.047 µF 0.047 µF 1 54 6 8732 VR IN GND O D Sc N R Os Vs Open 0.047 µF Is 0.047 µF Open Open Vsc 3K Vos 1 54 6 8732 VR IN GND OD Sc N R Os Vs 100 VI Open Vs 0.047 µF Open 0.047 µF 3K Vos Vsc “ ON” 0.047 µF 1 54 6 8732 VR IN GND O D Sc N R Os Vs 100 VI Open Vs 0.047 µF Open Vos Isc“ ON” 0.047 µF 1 54 6 8732 VR IN GND OD Sc N R Os Vs 100 VI Open Vs 0.047 µF Open IosL µF VosL 0.047 1 54 6 8732 VR IN GND O D Sc N R Os Vs 100 VIC Open Vs 0.047 µF Open µF 0.047 IIC 1 54 6 8732 VR IN GND OD Sc N R Os Vs VIDC OpenIIDC 1 54 6 8732 VR IN GND OD Sc N R Os Vs 100 VI Open Ism 0.047 µF Open µF 0.047 Vsm 1 54 6 8732 VR IN GND O D Sc N R Os Vs 100 VI Open 0.047 µF 0.047 µF Vos Is2 0.047 µF IGT 1 54 6 8732 VR IN GND O D Sc N R Os Vs 100 VI Open 0.047 µF 0.047 µF Vos Vs "OFF" 0.047 µF 1 54 6 8732 VR IN GND OD Sc N R Os Vs 100 VI Open 0.047 µF 0.047 µF Vs 0.047 µF µF

UTC M54123L LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R122-001,B TYPICAL CHARACTERISTICS 201816141210 200 30252015105 100 700 600 500 400 300 0.5 20161284 2.5 2.0 1.5 1.0 -40 100 8040200-20 500 400 300 200 10060 1000 900 700 800 600 0.5 109876 2.5 2.0 1.5 1.0 -40 80 40200-20 -20 -10 10060 -50 -40 -30 Vcc voltage vs.supply voltage Vcc voltage Vcc(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(μ A） Supply voltage Vs（V） Reference voltage vs.supply voltage Reference voltage V R （V） Supply voltage Vs(V) Bias current vs。ambient temperature Bias current IIN（nA） Ambient temperature Ta（℃） Differential amplifier output voltage vs. differential input voltage Differential input voltage △ VI=VR-VIN（mV） Differential amplifier output voltage V OD（V） Timing current vs. ambient temperature Ambient temperature Ta（℃） （μ A）Timed current 1 ITD1 Ta=-25℃ 75℃ 25℃ Ta=-25℃ 75℃ 25℃ Ta=75℃ -25℃ 25℃ Ta=75℃ -25℃25℃

UTC M54123L LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 7 QW-R122-001,B -50 2.5 1007550250-25 4.5 3.5 Operating tim e vs. a mbient temperature Operating time TON (ms) （μ A） 1.81.4 Os voltage vs.Sc voltage Sc voltage Vsc(V) Os voltage Vos(V) Ta=75℃ 25℃ -25℃ Ambient temperature Ta（℃） 06 4321 -200 -100 -400 -300 Os output voltage Vos(V) Output current Io 25℃ 75℃ Output current vs. Os output votltage Ta=-25℃ -50 1007550250-25 Trip voltage vs. a mbient temperature Trip voltage VT(mVrms) Ambient temperature Ta（℃）

UTC M54123L LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 8 QW-R122-001,B APPLICATION CIRCUIT HIGH-SPEED LEAKAGE CIRCUIT BREAKER WITH UTC M54123L 1 2 4 5 76 Supply voltage circuit Amplifier Output circuit AC line Trip coil R2 Vs GND Voltage regulator Reference voltage generator AC line C6 C5 C2C3 100Ω RPRL ZCT AMP Latch circuit Note 8 SCR CR2AM CR03AM CRO2AM Note 8:Gate current must be selected. Please select voltage resistance by AC supply voltage UTC M54123L 17 0 30753 10050 Operating time vs.input voltage Input voltage V1 (mVrms) Operating time tD (ms) 10 300500 1000 100 300 500 1000 700 C1=0.047 Ta=25 60Hz μ F

UTC M54123L LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 9 QW-R122-001,B Supply voltage circuit is connected as a previous diagram. Please decide constants R1, R2, C4, and C5 of a filter in order to keep at least 12V in Vs, when normal, supply current flows. In this case, please connect C4 (more than 1μF) and C2（less than 1μF）. ZCT and load resistance RL of ZCT are connected between input pin 1 and 2. In this case protective resistance （Rp=100Ω）must be insurted. Sensitivity current is regulated by R L, and output of amplifier shows in pin 4. External capacitor C1 between pin 4 and GND is used for noise removal. When large current is grounded in the primary side （AC line）of ZCT, the wave form in the secondary side of ZCT is distorted and some signals does not appear in the output of amplifier. So please connect a varistor or a diode （2 pcs）to ZCT in parallel. Latch circuit is used to inspect the output level of amplifier and to supply gate current on the external SCR. When input pin becomes more than 1.1V （Typ.），latch circuit operate and supply gate current in the gate of SCR connected to the output pin 7. Pin 6 can be used in the open state，but please connect capacitor（about 0.047μF） between pin 6 and pin 7. Capacitor C6 between pin 1 and GND is used to remove noise and is about 0.047 μF. 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.