CA3059 Zero Voltage Switch This series is designed for thyristor control in a variety of AC power switching applications for AC input voltages of 24 V, 120 V, 208/230 V, and 277 V @ 50/60 Hz. Applications: • • • • • • • http://onsemi.com Relay Control Valve Control Heater Control Lamp Control On−Off Motor Switching Differential Comparator with Self−Contained Power Supply for Industrial Applications Synchronous Switching of Flashing Lights 2 VCC Current Boost 1 RL 3 MT2 DC Mode or 400 Hz Input RP 14 100 μF + − ORDERING INFORMATION Protection Circuit 13 * RX PLASTIC PACKAGE CASE 646 Zero Crossing Detector 12 15 V VCC Power Supply Limiter AC Input AC Input Voltage SEMICONDUCTOR TECHNICAL DATA 14 5 RS ZERO VOLTAGE SWITCH Triac Drive 9 + On/Off Sensing Amp − 10 VCC MT1 Gate 8 * NTC Sensor 7 1 Inhibit 6 External Trigger Figure 1. Representative Block Diagram AC Input Voltage (50/60 Hz) Vac Input Series Resistor (RS) kΩ Dissipation Rating for RS W 24 2.0 0.5 120 10 2.0 208/230 20 4.0 277 25 5.0 © Semiconductor Components Industries, LLC, 2006 July, 2006 − Rev. 2 Operating Temperature Range Package CA3059 TA = − 40° to +85°C Plastic DIP FUNCTIONAL BLOCK DESCRIPTION 11 Gnd Device 4 1 1. Limiter−Power Supply — Allows operation of the CA3059 directly from an AC line. Suggested dropping resistor (RS) values are given in the table below. 2. Differential On/Off Sensing Amplifier — Tests for condition of external sensors or input command signals. Proportional control capability or hysteresis may be implemented using this block. 3. Zero−Crossing Detector — Synchronizes the output pulses to the zero voltage point of the AC cycle. This synchronization eliminates RFI when used with resistive loads. 4. Triac Drive — Supplies high−current pulses to the external power controlling thyristor. 5. Protection Circuit — A built−in circuit may be actuated, if the sensor opens or shorts, to remove the drive current from the external triac. 6. Inhibit Capability — Thyristor firing may be inhibited by the action of an internal diode gate at Pin 1. 7. High Power DC Comparator Operation — Operation in this mode is accomplished by connecting Pin 7 to Pin 12 (thus overriding the action of the zero−crossing detector). When Pin 13 is positive with respect to Pin 9, current to the thyristor is continuous. Publication Order Number: CA3059/D CA3059 MAXIMUM RATINGS Rating Symbol Value Unit DC Supply Voltage (Between Pins 2 and 7) VCC Vdc DC Supply Voltage (Between Pins 2 and 8) VCC Peak Supply Current (Pins 5 and 7) I5,7 ± 50 mA Fail−Safe Input Current (Pin 14) I14 2.0 mA Output Pulse Current (Pin 4) (Note 1) Iout 150 mA Junction Temperature TJ 150 °C Operating Temperature Range TA − 40 to + 85 °C Storage Temperature Range Tstg − 65 to + 150 °C 12 Vdc 12 ELECTRICAL CHARACTERISTICS (Operation @ 120 Vrms, 50−60 Hz, TA = 25°C [Note 2]) Figure Symbol DC Supply Voltage Inhibit Mode RS = 10 k, IL = 0 RS = 5.0 k, IL = 2.0 mA Pulse Mode RS = 10 k, IL = 0 RS = 5.0 k, RL = 2.0 mA Characteristic 2 VS Gate Trigger Current (VGT = 1.0 V, Pins 3 and 2 connected) 3 IGT Peak Output Current, Pulsed With Internal Power Supply, VGT = 0 Pin 3 Open Pins 3 and 2 Connected With External Power Supply, VCC = 12 V, VGT = 0 Pin 3 Open Pins 3 and 2 Connected 3 IOM Inhibit Input Ratio (Ratio of Voltage @ Pin 9 to Pin 2) 5 Total Gate Pulse Duration (CExt = 0) Positive dv/dt Negative dv/dt 6 Pulse Duration After Zero Crossing (CExt = 0, RExt = R) Positive dv/dt Negative dv/dt 6 Output Leakage Current Inhibit Mode (Note 3) Input Bias Current Min Typ Max Unit Vdc 6.1 — 6.5 6.1 7.0 — 6.0 — 6.4 6.2 7.0 — — 160 — mA mA 50 90 125 190 — — — — 230 300 — — V9/V2 0.465 0.485 0.520 tp tn 70 70 100 100 140 140 4 — μs μs tp1 tn1 — — 50 60 — — 3 I4 — 0.001 10 μA 7 IIB — 0.15 1.0 μA Common Mode Input Voltage Range (Pins 9 and 13 Connected) — VCMR — 1.4 to 5.0 — Vdc Inhibit Input Voltage 8 V1 — 1.4 1.6 Vdc External Trigger Voltage — V6−V4 — 1.4 — Vdc NOTES: 1. Care must be taken, especially when using an external power supply, that total package dissipation is not exceeded. 2. The values given in the Electrical Characteristics Table at 120 V also apply for operation at input voltages of 24 V, 208/230 V, and 277 V, except for Pulse Duration test. However, the series resistor (RS) must have the indicated value, shown in Table A for the specified input voltage. 3. I4 out of Pin 4, 2.0 V on Pin 1, S1 position 2. http://onsemi.com 2 CA3059 TEST CIRCUITS (All resistor values are in ohms) 9 4.6 k Pulse 10 11 RS 10 k 5 4 AC Line 0.3 k 2 13 IOM or IGT 7 Inhibit 1Ω ± 1% Oscilloscope With High−Gain Input RL 4.6 k RS VS 5 11 AC Line 8 100 μF 13 2 3 7 S1 1 IL 8 4 9 5k External Load Current 10 100 μF Figure 2. DC Supply Voltage Figure 3. Peak Output (Pulsed) and Gate Trigger Current with Internal Power Supply 100 μF 9 2 3 5k VGT 2 5k 5k 11 10 6 RS 10 k 5 RS 10 k 120 Vrms 60 Hz 13 4 7 12 120 Vrms 60 Hz 4 7 11 10 1Ω ± 1% IOM 9 Oscilloscope With High−Gain Input 8 8 R1 VGT 5 14 13 2 R2 100 μF Figure 4. Peak Output Current (Pulsed) with External Power Supply Gate Pulse Figure 5. Input Inhibit Ratio AC Line Positive dv/dt Negative dv/dt Zero Voltage tP1 tP 120 Vrms 60 Hz 9 RS 11 5 10 k CExt 2 4 7 1k 12 8 13 5k RExt VCC = 6.0 V tN1 tN 10 Oscilloscope With High−Gain Input + 3.0 V 9 2 IIB 5k 13 100 μF Figure 6. Gate Pulse Duration Test Circuit with Associated Waveform 7 8 Figure 7. Input Bias Current Test Circuit http://onsemi.com 3 CA3059 10 k IOM, PEAK OUTPUT CURRENT (PULSED) [mA] TYPICAL CHARACTERISTICS 9 5 10 1 1 1 4 2 14 7 39 k 13 8 VI R1 R2 5k 5k 300 250 Pins 2 and 3 Connected 200 Pin 3 Open 150 100 120 Vrms, 60 Hz Gate Voltage = 0 50 0 5.0 12 Figure 9. Peak Output Current (Pulsed) versus External Power Supply Voltage 120 Vrms, 60Hz 160 140 TOTAL PULSE WIDTH ( μ s) IOM, PEAK OUTPUT CURRENT (PULSED) [mA] Figure 8. Inhibit Input Voltage Test 8.0 9.0 10 6.0 7.0 11 EXTERNAL POWER SUPPLY VOLTAGE (V) 140 120 120 Vrms, 60 Hz Gate Voltage = 0 100 − 40 − 20 0 20 40 60 80 130 120 120 Vrms, 60 Hz Operation 110 100 90 80 100 TA, AMBIENT TEMPERATURE (°C) − 40 − 20 0 20 40 60 TA, AMBIENT TEMPERATURE (°C) 80 Figure 10. Peak Output Current (Pulsed) versus Ambient Temperature Figure 11. Total Pulse Width versus Ambient Temperature 100 120 Vrms, 60 Hz V9 /V 2, INHIBIT VOLTAGE RATIO VS, INTERNAL SUPPLY (V) 0.52 7.0 6.8 6.6 Inhibit Mode 6.4 6.2 6.0 − 40 − 20 0 20 40 60 TA, AMBIENT TEMPERATURE (°C) 80 0.50 0.48 0.46 0.44 0.42 0.40 100 Figure 12. Internal Supply versus Ambient Temperature − 40 − 20 0 20 40 60 TA, AMBIENT TEMPERATURE (°C) 80 Figure 13. Inhibit Voltage Ratio versus Ambient Temperature http://onsemi.com 4 100 CA3059 RP CF 100 μF 15 V + − Inhibit Input 2 10 k Rx NTC Sensor 13 1 50 k 15 10 3 Current Boost AC Line Input RS 8 9 70 μA 85 k 9.6 k 25 35 μA 11 5 30 k 30 k 5k 50 k 4 30 k 53 μA 12 For DC Mode or 400 Hz Operation 14 Fail−Safe Input To Thyristor Gate 150 μA 7 To Common 6 For External Trigger NOTE: Current sources are established by an internal reference. Figure 14. Circuit Schematic APPLICATION INFORMATION Power Supply b. Sensor Resistance (RX) and RP values should be between 2 kΩ and 100 kΩ. c. The relationship 0.33 < RX/RP < 3 must be met over the anticipated temperature range to prevent undesired activation of the circuit. A shunt or series resistor may have to be added. The CA3059 is a self−powered circuit, powered from the AC line through an appropriate dropping resistor (see Table A). The internal supply is designed to power the auxiliary power circuits. In applications where more output current from the internal supply is required, an external power supply of higher voltage should be used. To use an external power supply, connect Pin 5 and Pin 7 together and apply the synchronizing voltage to Pin 12 and the DC supply voltage to Pin 2 as shown in Figure 4. External Inhibit Function A priority inhibit command applied to Pin 1 will remove current drive from the thyristor. A command of at least +1.2 V @ 10 μA is required. A DTL or TTL logic 1 applied to Pin 1 will activate the inhibit function. Operation of Protection Circuit DC Gate Current Mode The protection circuit, when connected, will remove current drive from the triac if an open or shorted sensor is detected. This circuit is activated by connecting Pin 13 to Pin 14 (see Figure 1). The following conditions should be observed when the protection circuit is utilized: a. The internal supply should be used and the external load current must be limited to 2 mA with a 5 kΩ dropping resistor. When comparator operation is desired or inductive loads are being switched, Pins 7 and 12 should be connected. This connection disables the zero−crossing detector to permit the flow of gate current from the differential sensing amplifier on demand. Care should be exercised to avoid possible overloading of the internal power supply when operating the device in this mode. A resistor should be inserted between Pin 4 and the thyristor gate in order to limit the current. http://onsemi.com 5 CA3059 PACKAGE DIMENSIONS PLASTIC PACKAGE CASE 646−06 ISSUE M 14 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. 8 B 1 7 A F L N C −T− SEATING PLANE H G D 14 PL J K 0.13 (0.005) M DIM A B C D F G H J K L M N INCHES MIN MAX 0.715 0.770 0.240 0.260 0.145 0.185 0.015 0.021 0.040 0.070 0.100 BSC 0.052 0.095 0.008 0.015 0.115 0.135 0.290 0.310 −−− 10_ 0.015 0.039 MILLIMETERS MIN MAX 18.16 18.80 6.10 6.60 3.69 4.69 0.38 0.53 1.02 1.78 2.54 BSC 1.32 2.41 0.20 0.38 2.92 3.43 7.37 7.87 −−− 10_ 0.38 1.01 M ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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