M54123L EARTH LEAKAGE CURRENT DETECTOR LINEAR INTEGRATED CIRCUIT SOP-8 DESCRIPTION DIP-8 SIP-8 FEATURES ORDERING INFORMATION

Transcription

1 EARTH LEAKAGE CURRENT DETECTOR SOP- DESCRIPTION The UTC M51L is a semiconductor integrated circuit with amplifier for a high-speed earth leakage circuit breaker. For the amplifying parts of earth leakage circuit breaker, the UTC M51L consists of differential amplifier, latch circuit and voltage regulator. In normal operating, the UTC M51L should be connected to the secondary side of the ZCT (zero current transformers). Here the ZCT detects leakage current different 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 the fixed level, latch circuit doesn t become high. Then drives a thyristor which is connected to latch circuit s output terminal. FEATURES DIP- SIP- * With good input sensitivity current temperature characteristics * High input sensitivity :V T =.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 V and V. * Wide temperature range : from - C to + C ORDERING INFORMATION Order Number Lead Free Halogen Free Package Packing M51LK-D-T M51LG-D-T DIP- Tube M51LK-G-T M51LG-G-T SIP- Tube - M51LG-S-R SOP- Tape Reel 1 of 9

2 MARKING DIP- SIP- SOP- PIN CONFIGURATIONS V R 1 V S IN O S 1 5 GND N R O D 5 S C PIN DESCRIPTION SIP- DIP- / SOP- PIN NO. PIN NAME DESCRIPTION 1 V R Reference voltage terminal IN Input terminal GND Ground O D Differential amplifier output terminal 5 S C Latch input terminal N R Terminal for noise absorption O S Output terminal V S Supply voltage terminal of 9

3 BLOCK DIAGRAM VR Reference Voltage 1 Vs Latch Circuit Os Output Reference Voltage Generator + AMP - N R Terminal for Noise Absorption GND IN Input 5 O D Differential Amplifier Output Sc Latch Input of 9

4 ABSOLUTE MAXIMUM RATING (unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Current I S ma Between V R -IN (Note ) 5 ma V R Pin Current Between V R -GND I VR ma Between IN-V R (Note ) -5 ma Between IN-V R (Note ) 5 ma IN Terminal Current Between IN-GND I IN ma Between V R -IN (Note ) -5 ma S C Terminal Current I SC 5 ma Power Dissipation P D mw Operating Temperature T OPR -~ + C Storage Temperature T STG -55~ +15 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 operation is not implied.. 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 1%, In applying AC current continuously, it is 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 1 V External Capacitor Between Vs and GND C VS 1 μf External Capacitor Between Os and GND C OS 1 μf ELECTRICAL CHARACTERISTICS (T A =-~+ C, unless otherwise specified) Supply Current Trip Voltage Timed Current1 Timed Current Output Current PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT I S1 V T I TD1 I TD I O V S =1V,V R -V I =mv (See Test Circuit 1) V S =1V, V R -V I, T A =-~+ C (Note) (See Test Circuit ) V S =1V, V R -V I =mv, V OD =1.V, T A =5 C (See Test Circuit ) V S =1V, short circuit between V R and V I, V OD =.V, T A =5 C (See Test Circuit ) V SC =1.V,V OS =.V (See Test Circuit 5) T A =- C 5 μa T A =5 C 5 μa T A = C μa.1 9 mvrms -1 - μa 1 μa I S1 =5μA,T A =- C - μa I S1 =5μA,T A =5 C - μa I S1 =μa,t A = C -5 μa S C ON Voltage (Note) V SC(ON) V S =1V, T A =5 C (See Test Circuit ). 1. V S C Input Current I SC(ON) V S =1V, T A =5 C (See Test Circuit ) 5 μa Output Low-Level Current Input Clamp Voltage Differential Input Clamp Voltage I OSL V IC V IDC V S =1V,V OSL =.V, T A =-~+ C (See Test Circuit ) V S =1V, I IC =ma, T A =-~+ C (See Test Circuit 9) I IDC =ma, T A =-~+ C (See Test Circuit 1) μa.. V. V Maximum Current Voltage V SM I SM =ma, T A =5 C (See Test Circuit 11) V Supply Current (Note ) I S V R -V I, V OS =.V, T A =-~+ C (Note 5) (See Test Circuit 1) 1 μa Latch Circuit is Off-State Supply Voltage (Note) V S(OFF) T A =5 C (See Test Circuit 1).5 V Operating Time (Note ) T ON V S =1V,V R -V I =.V, T A =5 C (See Test Circuit 1) ms of 9

5 ELECTRICAL CHARACTERISTICS (Cont.) Notes: 1. Typical values are at T A =5 C. When standard value of voltage (Hz) between V R and V I is minimum, and output O S is low-level, or when standard value of voltage (Hz) between V R and V I is maximum, and output O S is high-level, it is considered as a good one.. 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.. Supply current is necessary to keep high in output O S. 5. After applying mv 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.. After supply voltage applies 1V and output O S is high-level, it is considered as a good one in the standard value of supply voltage and in the low-level of output O S.. Operating time is a time from applying fixed input till operating latch circuit in μf between O D and GND. 5 of 9

6 TEST CIRCUITS 1 Is 1 5 Vs Vsm 1 5 Vs 1K vos 1 5 Vs ITD1 VOD Vs 1 5 Is K VOD Vos ITD Vsc 1 5 K Vos. Vsc ON Vs Vs 1 5 Vs 1 5 Vs Vos IosL VosL IIC C Isc ON Ism Vos IIDC Vsm DC IGT Is 1 1 Vs Vs "OFF" Vos Note: The unit of resistance is ohm. Please insurt.1 between pin 1 and pin in test of 9

7 TYPICAL APPLICATION CIRCUIT High-Speed Leakage Circuit Breaker With UTC M51L M51L AC Line Trip Coil R V S C GND 1 5 R P =Ω C SCR (Note) CRAM CRAM CROAM R1 R L C AC Line { ZCT C1 C C5 Note: Gate current must be selected. Please select voltage resistance by AC supply voltage Note: The value of R1, R, C, and C5 should be chosen in order to keep at least 1V in Vs. Please connect C (>1μF) and C (<1μF). ZCT and load resistance R L of ZCT are connected between input pin 1 and. Protective resistance (R P =Ω) must be insurted. R L and amplifier s output (in Pin ) regulates sensitivity current External capacitor C1 between pin and GND is used for noise removal. Please connect a varistor or a diode ( 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 μf) between pin and pin. Capacitor C between pin 1 and GND is about μf for removing noise. Operating Time vs. Input Voltage C1= 5 Ta=5 C Hz Input Voltage, V1 (mvrms) of 9

8 TYPICAL CHARACTERISTICS 1 Vcc Voltage vs. Supply Voltage Supply Current 1 vs. Supply Voltage 1 Ta=-5 C Vcc Voltage, VCC (V) 5 C 5 C Supply Current 1, Is1 (µa) 5 Ta=-5 C 5 C 5 C Supply Voltage, Vs (V) Vcc voltage generates by the constant voltage circuit in IC. This is measured not by M51L but by a special element Supply Voltage, Vs (V) 5 Reference Voltage, VR (V) Reference Voltage vs. Supply Voltage Ta=5 C 5 C -5 C 1 1 Supply Voltage, Vs (V) Bias Current, IIN (na) Bias Current vs.ambient Temperature Ambient Temperature, Ta ( C) Differential Amplifier Output Voltage, VOD (V) Differential Amplifier Output Voltage vs.differential Input Voltage Ta=5 C 5 C -5 C Differential Input Voltage V I =V R -V IN (mv) Timed Current 1, ITD1 (µa) Timing Current vs.ambient Temperature Ambient Temperature, Ta ( C) of 9

9 TYPICAL CHARACTERISTICS(Cont.) Os Voltage vs. Sc Voltage.5 Operating Time vs. Ambient Temperature Os Voltage, Vos (V) Ta=5 C 5 C -5 C Operating Time, TON (ms) S C Voltage, V SC (V) Ambient Temperature, Ta C - Output Current vs. Os Output Votltage Ta=-5 C 1 Trip Voltage vs. Ambient Temperature Output Current, Io (µa) C 5 C Trip Voltage, VT (mvrms) O S Output Voltage, V OS (V) Ambient Temperature, Ta ( C) 9 of 9