HN7101 HN7101 Earth Leakage Current Detector . Description Pin Configutation (Top View) The HN7101 is designed for use in earth leakage circuit interrupters for operation directly of the AC Line in breakers. It contains pre regulator, main regulator, after regulator, differential amplifier, level comparator, latch circuit. The input in the differential amplifier is connect to the secondary node of zero current transformer. The level comparator generates high level when earth leakage current is greater than some level. This IC is pin-pin replacement of M54123, GL7101. For replacing M54123, only RL required to be about 640ȍ. Feature • Low Power Consumption (PD=5mW) 100V/200V • 100V/200V Common Built-in Voltage Regulator • High Gain Differential Amplifier • High Input Sensitivity • Minimum External Parts • Large Surge Margin • Wide Operating Temperature Range (TÀ =-30 to 85°C) • High Noise Immunity Absolute Maximum Ratings (TA=25°c) • Supply Voltage • Supply Current • Power Dissipation • Operating Temperature • Storage Temperature 20V 8mA 200mW - 30 to 85°C - 55 to 125°C Block Diagram Vcc OS NR SC 8 7 6 5 Latch Voltage Regulator Bias Amp 1 2 3 4 VR IN GND OD Ordering Information Part No. HN7101ET HN7101EM HN7101EP Temp. Range -30 – +85ć -30 – +85ć -30 – +85ć Package SIP8 SOP8 DIP8 1 VR 1 IN 2 8 VCC 7 OS HN7101 GND 3 6 NR OD 4 5 SC HN7101 Recommended Operating Condition : Ta = -30°C to 80 °C PARAMETER Supply Voltage VS-GND Capacitor OS-GND Capacitor SYMBOL V+ CVS COS MIN. 12 1 TYP. MAX. UNIT V µF µF 1 Electrical Characteristics PARAMETER Supply Current 1 * * SYMBOL IS1 CONDITIONS TEMP ( ° C) V+=12V, VR-VI=30mV MIN. TYP. MAX UNIT TEST CIRCUIT µA 1 -30 - - 25 - 400 580 530 85 - - 480 -30 85 9 13.5 18 mV(rms) 2 VT V+=16V, VR-VI=X Differential Amplifier Output Current 1 ITD1 V+=16V, VR-VI=30mV VOD=1.2V 25 -12 - -30 µA 3 Differential Amplifier Output Current 2 ITD2 V+=6V, VR-VI=short VOD=0.8V 25 17 - 37 µA 4 -200 - IO VSC=1.4V VOS=0.8V -30 Output Current 25 -100 - µA 5 85 -75 - Trip Voltage ISI=580 µA ISI=530 µA ISI=480 µA SC On Voltage VSC ON V+=16V 25 0.7 - 1.4 V 6 SC Input Current ISC ON V+=12V 25 - - 5 µA 7 Output "L" Current IOSL V+=12V, VOSL0.2V -30 85 200 - - µA 8 Input Clamp Voltage VIC V+=12V, VIC=20mA -30 85 4.3 - 6.7 V 9 Differential Input ClampVoltage VIDC IIDC=100mV -30 85 0.4 - 2 V 10 Max. Current voltage VSM ISM=7mA Supply Current 2 IS2 Latch Circuit Off SupplyVoltage V+OFF Response Time TON VOS=0.5V, VR-VI=X V+=16V, VR-VI=0.3V A: 9 ~ 12.55 B: 11.5 ~ 15.5 C: 14.5 ~ 18 2 25 20 - 28 V 11 -30 85 - - 900 µA 12 25 0.5 - V 13 25 1 - ms 14 4 HN7101 Typical Performance Curves SUPPLY CURRENT-SUPPLY VOLTAGE VOLTAE-SUPPLY VOLTAGE 700 12 ° SUPPLY CURRENT IS1 TA=-25 C Voltage VCC (V) 10 8 ° ° 25 C 75 C 6 4 2 0 8 10 12 14 16 18 600 500 ° TA=-25 C 400 ° ° 25 C 75 C 300 200 100 0 20 5 25 30 1000 ° TA=-25 C 2 ° ° 25 C 75 C 1 500 1.0 0.5 0 4 8 12 16 20 -40 -20 SUPPLY VOLTAGE VS (V) DIFFERENTIAL AMPLIFIER OUTPUT VOLTAGE - DIFFERENTIAL INPUT VOLTAGE -50 5 4 3 2 ° TA=75 C 1 0 0 20 40 60 80 100 TEMPERATURE TA ( °C) DIFFERENTIAL AMPLIFIER OUTPUT CURRENT-TEMP DIFFERENTIAL AMP CURRENT ITD1 (uA) DIFFERENTIAL AMP OUTPUT VDD (V) 20 BIAS CURRENT-TEMPERATURE BIAS CURRENT IIN nA REFERENCE VOLTAGE VR(V) REFERENCE VOLTAGE-SUPPLY VOLTAGE 1.5 15 SUPPLY VOLTAGE V+ (V) SUPPLY VOLTAGE V+ (V) 2.5 10 ° -25 C ° 25 C 10 12 14 16 18 -40 -30 -20 -10 0 20 -40 -20 0 20 40 60 80 100 DIFFERENTIAL INPUT VOLTAGE TEMPERATURE TA ( °C) Ƹ VI=VR-VIN (mV) 3 HN7101 Test Circuit 1 3 2 VR IN GND OD Sc NR Os Vcc 1 2 3 4 5 100 6 7 Open VI VR IN GND OD Sc NR Os Vcc Is 8 1 2 100 1K Vcc 0.047 Vsm 0.047 3 VI 4 5 6 7 Open 0.047 vos µF µF 4 µF VR IN GND OD Sc NR Os Vcc 8 Vcc µF µF 2 3 4 5 100 6 7 Open 8 Vcc 0.047 1 2 3 4 5 6 7 Open Open 3K 0.047 0.047 µF ITD2 µF ˓ Vsc 8 1 2 3 100 4 5 6 7 Open Open Vos µF IscĀONā 1 2 0.047 3 Vos µF 2 3 4 5 6 7 IIDC 4 5 6 7 Open Open 3K Vos Vsc µF ĀONā 8 Vcc 0.047 µF 0.047 µF 1 2 3 0.047 IIC µF 0.047 4 5 6 7 Open Open 8 Vcc 0.047 VIC 0.047 µF µF 12 1 2 3 100 Open µF µF 0.047 100 VR IN GND OD Sc NR Os Vcc 8 0.047 0.047 VR IN GND OD Sc NR Os Vcc 8 Vcc 11 1 3 VI 0.047 µF VR IN GND OD Sc NR Os Vcc 2 100 µF 4 5 6 7 Open Open IosL VosL VI µF 10 8 Vcc 9 100 0.047 VI 1 Icc VR IN GND OD Sc NR Os Vcc 8 Vcc VOD 6 7 Open VR IN GND OD Sc NR Os Vcc 8 VR IN GND OD Sc NR Os Vcc 5 6 Open VOD VI 3 4 ITD1 VI 0.047 0.047 VR IN GND OD Sc NR Os Vcc VR IN GND OD Sc NR Os Vcc 2 100 5 1 1 4 5 6 7 Open Open VR IN GND OD Sc NR Os Vcc Ism Vsm VI VIDC 8 0.047 0.047 µF µF 1 2 100 VI 3 4 5 6 7 8 Open Vos Is2 0.047 0.047 IGT µF µF 0.047 µF 14 13 VR IN GND OD Sc NR Os Vcc 1 2 100 VI 3 4 5 6 7 Open 8 VR IN GND OD Sc NR Os Vcc Vcc "OFF" µF 2 100 0.047 0.047 Vos 0.047 µF 1 µF VI 3 4 5 6 7 Open 0.047 0.047 µF µF 4 8 Vcc 0.047 µF Note: The unit of resistance is ohm. Please insurt 0.01 µFbetween pin 1 and pin 3 in test HN7101 Typical Application 6XSSO\YROWDJHFLUFXLW 7ULS FRLO FF 120Kȍ $PSOLILHU2XWSXWFLUFXLW Voltage Reference voltage regulator generator Latch circuit AMP ! ! # 1RWH ) * * * 640ȍ " " & 1RWH*DWHFXUUHQWPXVWEHVHOHFWHG 3OHDVHVHOHFWYROWDJHUHVLVWDQFHE\$&VXSSO\YROWDJH Supply voltage circuit is connected as a previousdiagram. Please decide constants R1, R2, C4, and C5 of a filter in order to keep at least 12V in Vcc, when normal, supply current flows. In this case, please connect C4 (more than 1F) and C2˄less than 1F˅. ZCT and load resistance RL of ZCT are connected between input pin 1 and 2. In this case protective resistance ˄Rp=100¡˅must be insurted. Sensitivity current is regulated by RL, R L could be about 640¡ for checking, 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.˅ˈlatch 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 stateˈbut please connect capacitor˄about 0.047F˅ between pin 6 and pin 7. Capacitor C6 between pin 1 and GND is used to remove noise and is about 0.047F. 5