M54128 Mitsubishi, M54128 Datasheet
M54128
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M54128 Summary of contents
Page 1
... DESCRIPTION The M54128 is a semiconductor integrated circuit designed for high-speed type earth leakage breakers. This lC includes leakage and abnormal voltage detecting functions. FEATURES lmprovement of ability against unwanted tripping due to Iightning -surge. • Adopt the two times counting system. • lmprovement of ability against needless action due to lightning- impulse ...
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... EARTH LEAKAGE CURRENT DETECTOR Function pin. When the abnormal voltage detection function is not in use, CC pin and T BLI operates with the logic flow of negative input CRT pin, S operates with the logic flow of negative input CC CRT M54128L/FP pin also. TDC positive input positive input. ...
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... BAND GAP 1. 2.5V T RC1 T RC2 BLI 7-stages MITSUBISHI <CONTROL / DRIVER IC> EARTH LEAKAGE CURRENT DETECTOR V CC 2.7V V REF I LKI I REF External R (130k 100 OFF C 800 2.5V 200k 3k 50k M54128L/FP 500 150 350 6-stages 8 A 100 T TDC S CRT SAV SEL ...
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... Ambient temperature T I LKI I LKI V I BLI I BLI 75 100 125 150 ( C) a MITSUBISHI <CONTROL / DRIVER IC> M54128L/FP EARTH LEAKAGE CURRENT DETECTOR Conditions Ratings -1.4 to +1.4 REF - REF - GND 10 REF - GND -0.3 to +4.0 - GND 4 200 - -55 to125 Unit mA ...
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... W3 V SCRT pin “L” output voltage OL8 I OHc I SCRT pin “H” output current OHn I OHh V I holding supply voltage soff OH MITSUBISHI <CONTROL / DRIVER IC> M54128L/FP EARTH LEAKAGE CURRENT DETECTOR Test conditions Min 570 570 SAV CC 570 520 520 9V ...
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... RC1 T pin RC2 OFF pin C 0.7V SCR output SCR output ABNORMAL VOLTAGE DETECTION I input BLI OFF pin C T pin TDC SCR output EARTH LEAKAGE CURRENT DETECTOR 2.3ms 2.4V 55ms 300ms MITSUBISHI <CONTROL / DRIVER IC> M54128L/FP 2.4V 2.4V 55ms When P = GND SEL When SEL 2.4V 2.4V 2.4V 55ms CC ...
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... PRECAUTIONS FOR APPLICATION Note that the improvement examples in the following precautions for application of M54128FP/L are merely examples applied voltage (1) ls circuit current (clamp circuit characteristics of the equivalent circuit shown in TYPlCAL CHARAC- TERISTICS figure 1 on page 9. Attention should be given to the circuit current when designing the power supply circuit. ...
Page 8
... TDC T RC1 RC2 MITSUBISHI <CONTROL / DRIVER IC> M54128L/FP EARTH LEAKAGE CURRENT DETECTOR 3.1V • ln the case of leakage detection : May become 10ms (50Hz) shorter • ln the case of abnormal voltage detection : May become 20ms (50Hz) shorter Note time shorter than setting value ...
Page 9
... Ambient temperature ( - 100 50 100 MITSUBISHI <CONTROL / DRIVER IC> M54128L/FP EARTH LEAKAGE CURRENT DETECTOR Source Current vs. Supply Voltage 1000 900 When detecting leakage 800 When standing by When SCR ON 700 600 Supply voltage (V) Source Current vs ...
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... MITSUBISHI <CONTROL / DRIVER IC> EARTH LEAKAGE CURRENT DETECTOR I Output Voltage vs. Ambient Temperature REF 1 1.4 1.3 1.2 1.1 - Output Voltage vs. Ambient Temperature REF 2 2.8 2.7 2.6 2.5 12 -50 V Output Voltage vs. Ambient Temperature CC 6 5.5 5.0 4.5 4.0 12 -50 M54128L/ 100 Ambient temperature ( 100 Ambient temperature ( 100 Ambient temperature ( C) ...
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... RC1 - /OFF RC1,2 vs. Ambient Temperature 3 2.5 2.0 - Pulse Width vs. Ambient Temperature RC1 0.01 F RC1 3 2 -50 12 M54128L/ 100 Ambient temperature ( Threshold Voltage C BLI TDC 0 50 100 Ambient temperature ( 100 Ambient temperature ( C) ...
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... Ambient temperature ( C) T “H” Output Current vs. Ambient Temperature TDC -50 12 Ambient temperature ( C) T Pulse Width vs. Ambient Temperature TDC 350 1.0 F TDC 300 250 -50 12 Ambient temperature ( C) M54128L/ 100 0 50 100 0 50 100 ...
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... Output Current vs. Ambient Temperature -50 Ambient temperature ( C) OFF “L” Output Voltage vs. Ambient Temperature C 1 1.0 0.8 0.6 0.4 12 -50 Ambient temperature ( C) OFF Pulse Width vs. Ambient Temperature OFF = 0. -50 Ambient temperature ( C) M54128L/ 100 0 50 100 0 50 100 ...
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... MITSUBISHI <CONTROL / DRIVER IC> EARTH LEAKAGE CURRENT DETECTOR 1200 S “L” Output Voltage vs. Ambient Temperature CRT 0 200 A OL 0.3 0.2 0 -50 S “H” Output Current vs. Ambient Temperature CRT 400 300 200 100 0 12 -50 M54128L/ 100 Ambient temperature ( 100 Ambient temperature ( C) ...
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... CC P SAV M54128L/FP Power supply circuit GND I V REF MZ Core Series by Soryo Denshi Kagaku Co., Ltd (Mitsubishi Subsidiary) Tel. +81-427-74-7813 MITSUBISHI <CONTROL / DRIVER IC> M54128L/FP EARTH LEAKAGE CURRENT DETECTOR T. Coil I T OFF BLI TDC Abnormal voltage SCR driving detection Earth leakage detection ...