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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: Relay Control Valve Control On-Off Motor Switching
ZERO VOLTAGE SWITCH
SEMICONDUCTOR TECHNICAL DATA
* *
Heater Control Lamp Control
Differential Comparator with Self-Contained Power Supply for Industrial Applications Synchronous Switching of Flashing Lights
14 1
Figure 1. Representative Block Diagram
2 VCC
PLASTIC PACKAGE CASE 646
ORDERING INFORMATION
Device CA3059 Operating Temperature Range TA = - 40 to +85C Package Plastic DIP
RS
5 AC Input Limiter
Power Supply
VCC Current Boost RL 3
12 AC Input Voltage 100 F + 15 - V DC Mode or 400 Hz Input RP 14 Protection Circuit
Zero Crossing Detector MT2
FUNCTIONAL BLOCK DESCRIPTION
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.
Triac Drive
4 MT1 Gate
13
9 * RX 10 11
+ On/Off Sensing Amp - VCC
8 Gnd * NTC Sensor 7
1 Inhibit
6 External Trigger
AC Input Voltage (50/60 Hz) Vac 24 120 208/230 277
Input Series Resistor (RS) k 2.0 10 20 25
Dissipation Rating for RS W 0.5 2.0 4.0 5.0
(c) Motorola, Inc. 1996
Rev 0
MOTOROLA ANALOG IC DEVICE DATA
1
CA3059
MAXIMUM RATINGS
Rating DC Supply Voltage (Between Pins 2 and 7) DC Supply Voltage (Between Pins 2 and 8) Peak Supply Current (Pins 5 and 7) Fail-Safe Input Current (Pin 14) Output Pulse Current (Pin 4) (Note 1) Junction Temperature Operating Temperature Range Storage Temperature Range Symbol VCC 12 VCC 12 I5,7 I14 Iout TJ TA Tstg 50 2.0 150 150 - 40 to + 85 - 65 to + 150 mA mA mA C C C Vdc Value Unit Vdc
ELECTRICAL CHARACTERISTICS (Operation @ 120 Vrms, 50-60 Hz, TA = 25C [Note 2])
Characteristic 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 Gate Trigger Current (VGT = 1.0 V, Pins 3 and 2 connected) 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 Inhibit Input Ratio (Ratio of Voltage @ Pin 9 to Pin 2) Total Gate Pulse Duration (CExt = 0) Positive dv/dt Negative dv/dt Pulse Duration After Zero Crossing (CExt = 0, RExt = Positive dv/dt Negative dv/dt Figure 2 Symbol VS 6.1 -- 6.0 -- 3 3 IGT IOM 50 90 4 -- -- 5 6 tp tn 6 tp1 tn1 3 7 -- 8 -- I4 IIB VCMR V1 V6-V4 -- -- -- -- -- -- -- 50 60 0.001 0.15 1.4 to 5.0 1.4 1.4 -- -- 10 1.0 -- 1.6 -- A A Vdc Vdc Vdc 70 70 100 100 140 140 s V9/V2 0.465 230 300 0.485 -- -- 0.520 -- s 125 190 -- -- -- 6.5 6.1 6.4 6.2 160 7.0 -- 7.0 -- -- mA mA Min Typ Max Unit Vdc
R)
Output Leakage Current Inhibit Mode (Note 3) Input Bias Current Common Mode Input Voltage Range (Pins 9 and 13 Connected) Inhibit Input Voltage External Trigger Voltage
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.
2
MOTOROLA ANALOG IC DEVICE DATA
CA3059
TEST CIRCUITS
(All resistor values are in ohms)
Figure 2. DC Supply Voltage
Pulse 0.3 k Inhibit 4.6 k
Figure 3. Peak Output (Pulsed) and Gate Trigger Current with Internal Power Supply
9 10 11
13
2
RS 10 k 5 AC Line 4 7 VS 11 100 F IOM or IGT 1 1% Oscilloscope With High-Gain Input
4.6 k RS AC Line 7 IL 8 4 9 10 5
RL
External Load Current 5k
8
13
2 1
3 S1 2 100 F VGT
5k
Figure 4. Peak Output Current (Pulsed) with External Power Supply
Figure 5. Input Inhibit Ratio
100 F 3 2 5k 5k RS 10 k 5 RS 10 k 12 120 Vrms 60 Hz 7 10 9 8 5 VGT 11 IOM 1 1% 4 Oscilloscope With High-Gain Input 13 120 Vrms 60 Hz 7
9
10
11
6
4
8
13
14
2
R1 100 F
R2
Figure 6. Gate Pulse Duration Test Circuit with Associated Waveform
Gate Pulse Positive dv/dt Zero Voltage tP1 tP 120 Vrms 60 Hz RS 10 k CExt 5 7 1k 12 RExt 9 tN1 10 tN 11 4 Oscilloscope With High-Gain Input AC Line Negative dv/dt
Figure 7. Input Bias Current Test Circuit
VCC = 6.0 V 2
+ 3.0 V
9 IIB 13 7 8
8 5k
13 5k 100 F
2
MOTOROLA ANALOG IC DEVICE DATA
3
CA3059
TYPICAL CHARACTERISTICS
Figure 8. Inhibit Input Voltage Test
IOM, PEAK OUTPUT CURRENT (PULSED) [mA]
Figure 9. Peak Output Current (Pulsed) versus External Power Supply Voltage
300 250 200 150 100 50 0 5.0 6.0 7.0 11 8.0 9.0 10 EXTERNAL POWER SUPPLY VOLTAGE (V) 12 120 Vrms, 60 Hz Gate Voltage = 0 Pins 2 and 3 Connected Pin 3 Open
10 k 5
9 10 11 1 2 14 4
7 8
13
39 k VI
R1 5k
R2 5k
Figure 10. Peak Output Current (Pulsed) versus Ambient Temperature
IOM, PEAK OUTPUT CURRENT (PULSED) [mA]
Figure 11. Total Pulse Width versus Ambient Temperature
120 Vrms, 60Hz
160 TOTAL PULSE WIDTH ( s)
140 130 120 120 Vrms, 60 Hz Operation 110 100 90 100 80 - 40 - 20 0 20 40 60 80 100 TA, AMBIENT TEMPERATURE (C)
140
120 120 Vrms, 60 Hz Gate Voltage = 0 100 - 40 - 20 0 20 40 60 80 TA, AMBIENT TEMPERATURE (C)
Figure 12. Internal Supply versus Ambient Temperature
Figure 13. Inhibit Voltage Ratio versus Ambient Temperature
120 Vrms, 60 Hz 0.52
7.0 6.8 6.6 6.4 6.2 6.0 - 40 - 20 0 20 40 60 TA, AMBIENT TEMPERATURE (C) 80 100 Inhibit Mode
V9 /V 2, INHIBIT VOLTAGE RATIO
VS, INTERNAL SUPPLY (V)
0.50 0.48 0.46 0.44 0.42 0.40
- 40
- 20
0 20 40 60 TA, AMBIENT TEMPERATURE (C)
80
100
4
MOTOROLA ANALOG IC DEVICE DATA
CA3059
Figure 14. Circuit Schematic
RP CF 100 F 15 V + - 2 Inhibit Input Rx NTC Sensor 13
1
10 k 10
50 k 15 3 Current Boost 9 9.6 k 11 8 25
70 A AC Line Input RS 5 85 k
35 A
30 k 30 k 30 k 53 A 150 A 50 k
5k 4 To Thyristor Gate
12 For DC Mode or 400 Hz Operation
14 Fail-Safe Input
7 To Common
6 For External Trigger
NOTE: Current sources are established by an internal reference.
APPLICATION INFORMATION
Power Supply 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. Operation of Protection Circuit 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 k dropping resistor. b. Sensor Resistance (RX) and RP values should be between 2 k and 100 k. 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. 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 A is required. A DTL or TTL logic 1 applied to Pin 1 will activate the inhibit function. DC Gate Current Mode 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.
MOTOROLA ANALOG IC DEVICE DATA
5
CA3059
OUTLINE DIMENSIONS
PLASTIC PACKAGE CASE 646-06 ISSUE L
14 8 NOTES: 1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE POSITION AT SEATING PLANE AT MAXIMUM MATERIAL CONDITION. 2. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 3. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 4. ROUNDED CORNERS OPTIONAL. 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 0.300 BSC 0_ 10_ 0.015 0.039 MILLIMETERS MIN MAX 18.16 19.56 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 7.62 BSC 0_ 10_ 0.39 1.01
B
1 7
A F C N H G D
SEATING PLANE
L
J K M
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1-800-441-2447 or 602-303-5454 MFAX: RMFAX0@email.sps.mot.com - TOUCHTONE 602-244-6609 INTERNET: http://Design-NET.com
JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-81-3521-8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298
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MOTOROLA ANALOG IC DEVICE DATA CA3059/D
*CA3059/D*

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