M54123L Unisonic Technologies, M54123L Datasheet
M54123L
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M54123L Summary of contents
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... FUNCTION The UTC M54123L circuit for the amplifying parts of earth leakage circuit breaker consists of differential amplifier, latch circuit and voltage regulator connected to the secondary side of the zero current transformer (ZCT) which detects leakage current in the both input of the 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 ...
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... UTC M54123L LINEAR INTEGRATED CIRCUIT PIN CONFIGURATIONS (TOP VIEW) BLOCK DIAGRAM GND Input Reference voltage UTC UNISONIC TECHNOLOGIES CO., LTD. + AMP - Latch Differential Terminal for noise input amplifier output 7 Os output absorption 2 QW-R122-001,B ...
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... UTC M54123L LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Supply current Is V pin current terminal current terminal current Isc Power dissipation Pd Operating temperature Topr Storage temperature Tstg Note 1: Current value between V and IN, and between IN and V R cycle is less than 12%, In applying AC current continuously 100 mA in the off-state. ...
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... UTC M54123L LINEAR INTEGRATED CIRCUIT PARAMETER SYMBOL Differential input clamp V IDC voltage Maximum current voltage V SM Supply current 2(Note Latch circuit is off-state V S ”OFF” supply voltage (Note6) Operating time (Note Typical values are at Ta=25°C. Note 2: When standard value of voltage (60Hz) between V standrd value of voltage(60Hz)between good one ...
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... UTC M54123L LINEAR INTEGRATED CIRCUIT TEST CIRCUIT GND Open 100 V 0.047 0.047 I µF µ GND Open 100 0.047 0.047 I µF µF ...
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... 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. Reference voltage vs.supply voltage 2.5 2.0 -25℃ 1.5 1.0 0 Supply voltage Vs(V) Differential amplifier output voltage vs. differential input voltage 2 ...
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... UTC M54123L LINEAR INTEGRATED CIRCUIT Os voltage vs.Sc voltage 8 Ta=75℃ 25℃ -25℃ 0.4 0.6 0.8 1 1.2 1.4 Sc voltage Vsc(V) Output current vs. Os output votltage -400 Ta=-25℃ -300 25℃ 75℃ -200 -100 output voltage Vos(V) UTC UNISONIC TECHNOLOGIES CO., LTD. Operating tim e vs. a mbient temperature 4 ...
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... UTC M54123L LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUIT HIGH-SPEED LEAKAGE CIRCUIT BREAKER WITH UTC M54123L Supply voltage circuit Trip coil Voltage AC regulator C 4 line 3 GND Note 8:Gate current must be selected. 1000 700 500 300 100 UTC UNISONIC TECHNOLOGIES CO., LTD. ...
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... UTC M54123L LINEAR INTEGRATED CIRCUIT Supply voltage circuit is connected as a previous diagram. Please decide constants R1, R2, C4, and 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 R connected between input pin 1 and 2. In this case protective resistance （ ...