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TCA785
+NomenclatureIC PHASE CONTROL 250MA OUT 16DIP
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FabricantTechnologie Infineon
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Pièce fabricant #TCA785
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Package PDIP-16
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En stock5503
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Spécifications
| Attribut | Valeur |
| Package / Case | Tube |
| Part Status | Obsolete |
| Applications | Multiphase Controller |
| Supply Current | 6.5mA |
| Voltage - Supply | 8V ~ 18V |
| Operating Temperature | -25°C ~ 85°C |
| Mounting Type | Through Hole |
Présentation
Description
Key features include zero-crossing detection for minimizing electromagnetic interference, adjustable triggering pulse width, and built-in protection circuits. It supports both single-phase and three-phase power systems, enhancing its versatility in industrial applications.
The IC operates by synchronizing to the AC line frequency and generating phase-delayed trigger pulses for thyristors or triacs, which are used as switching devices. This phase control approach results in efficient power usage and reduces wear on mechanical components. The TCA785 is widely appreciated for its reliability, ease of integration into existing systems, and capability to improve energy efficiency in various power control applications.
Equivalent
1. U209B – From Siemens/Infineon, used for phase control.
2. U2008B – A similar phase control IC.
3. U211B – Another alternative for phase control.
4. BT136/BT137 – Devices like TRIACs, when used with simpler control circuits, can also serve similar purposes.
These alternatives should be selected based on specific application requirements and compatibility.
Features
1. Phase Control: Supports precise phase angle control of power to loads, such as resistive or inductive loads.
2. Synchronization: Equipped with zero-crossing synchronization for stable firing of thyristors or triacs, ensuring minimal electromagnetic interference.
3. Adjustability: Provides adjustable pulse width and delay for optimal control over the conduction phase.
4. Triggering: Capable of driving gate pulses for a wide range of thyristors or triacs, with high noise immunity.
5. Protection: Includes features for overcurrent protection and failure detection, enhancing system reliability.
6. Voltage Range: Operates over a wide supply voltage range, providing flexibility in various applications.
7. Temperature Range: Designed to operate efficiently across a broad temperature range, making it suitable for industrial environments.
These features make the TCA785 suitable for applications in dimmers, motor controls, and other systems requiring precise and reliable power control.
Pinout
Here is a brief overview of the pin functions:
1. Pin 1: Comparator input
2. Pin 2: Comparator input
3. Pin 3: Phase input
4. Pin 4: Synchronization input
5. Pin 5: Oscillator input
6. Pin 6: Oscillator output
7. Pin 7: Zero-cross detector
8. Pin 8: Ground
9. Pin 9: Vcc (supply voltage)
10. Pin 10: Control voltage input
11. Pin 11: Ramp generator
12. Pin 12: Output amplifier
13. Pin 13: Trigger pulse output
14. Pin 14: Trigger pulse output
15. Pin 15: Inhibit input
16. Pin 16: Reference voltage output
This IC is versatile for various phase control applications due to its built-in synchronization and control features.