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Zero Voltage Switch
Zero Voltage Switch
ic
The CA3059 is a Zero Voltage Switch designed for thyristor control in AC power switching applications.
In stock
Specifications
8- Operating Voltage
- 12 Vdc (Between Pins 2 and 7 or 8)
- Supply Current
- ±50 mA mA
- Interface
- GPIO, ADC (Inhibit Input Voltage Ratio), I2C (Not applicable)
- Resolution
- 0.465 to 0.520 -
- Range
- −40°C to +85°C (Operating Temperature Range)
- Accuracy
- ±1% (For 120 Vrms, 60 Hz operation) %
- Temperature Range
- -40°C to +85°C
- Package
- Plastic DIP (CASE 646)
Pinout
13Low source legibility.The original manufacturer datasheet for this part was difficult to read, so this pinout may be incomplete or imperfect. Always confirm against the specific manufacturer’s datasheet before wiring.
| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | Inhibit Input | GPIO | Priority inhibit command applied to Pin 1 will remove current drive from the thyristor. |
| 2 | VCC (DC Supply Voltage) | POWER | Supply voltage between Pins 2 and 7 or 8 is 12 Vdc. |
| 3 | Gate Trigger Input | GPIO | Used for differential on/off sensing amplifiers and gate trigger current. |
| 4 | Output Pulse Current (Pulsed) | GPIO | Provides peak output current in pulsed mode. |
| 5 | External Power Supply Connection | POWER | Connects to an external power supply for higher output current. |
| 7 | DC Mode or 400 Hz Input | GPIO | Used in DC mode or with a 400 Hz input signal. |
| 8 | VCC (DC Supply Voltage) | POWER | Supply voltage between Pins 2 and 7 or 8 is 12 Vdc. |
| 9 | Inhibit Input Voltage Ratio | GPIO | Ratio of voltage at Pin 9 to Pin 2 for inhibit input function. |
| 10 | Protection Circuit | GPIO | Activated by connecting Pin 13 to Pin 14, removes current drive from the triac if an open or shorted sensor is detected. |
| 11 | AC Line Input | GPIO | Input for AC line voltage synchronization and zero-crossing detection. |
| 12 | Zero Crossing Detector Synchronization | GPIO | Synchronizes output pulses to the zero voltage point of the AC cycle. |
| 13 | External Trigger Input | GPIO | Input for external trigger signals or commands. |
| 14 | Fail-Safe Input Current | POWER | Provides fail-safe current input to the device. |
Interactive pinout
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Zero Voltage Switch
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