TLP172A(F)

The TLP172A(F) is a photocoupler (optocoupler) IC with a GaAs infrared emitting diode and a photo transistor. It is designed to provide electrical isolation and signal transmission between input and output circuits, making it suitable for various applications requiring noise immunity and/or voltage isolation.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• 1. Anode of the IR LED
• 2. Cathode of the IR LED
• 3. No internal connection
• 4. Collector of the Photo Transistor
• 5. Emitter of the Photo Transistor
• 6. No internal connection
• 7. Base of the Photo Transistor
• 8. No internal connection

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the TLP172A(F) IC for a visual representation.

Key Features

• High Isolation Voltage: Provides high isolation voltage, making it suitable for applications requiring voltage isolation between input and output circuits.
• Compact and Thin Package: Available in a space-saving and thin SO6 package, ideal for applications with space constraints.
• High Collector-Emitter Voltage: The TLP172A(F) features a high collector-emitter voltage, allowing it to handle higher voltages in the output circuit.
• Current Transfer Ratio (CTR): Offers a high CTR, ensuring efficient signal transmission between input and output.
• Noise Immunity: This optocoupler provides noise immunity, making it reliable in noisy environments.

Note: For detailed technical specifications, please refer to the TLP172A(F) datasheet.

Application

• Switching Power Supplies: Suitable for use in switching power supply circuits to provide voltage feedback and control signals isolation.
• Industrial Control Systems: Ideal for electrical isolation in industrial control systems, ensuring signal integrity and safety.
• Signal Transmission: Used in applications requiring noise-immune signal transmission between different voltage potentials.

Functionality

The TLP172A(F) optocoupler provides electrical isolation and signal transmission between input and output circuits using an infrared emitting diode and a photo transistor. It ensures reliable and safe communication in various electronic systems.

Usage Guide

• Input Connection: Connect the IR LED Anode (Pin 1) to the anode connection and the IR LED Cathode (Pin 2) to the cathode connection.
• Output Connection: Utilize the Collector (Pin 4), Emitter (Pin 5), and Base (Pin 7) connections according to the requirements of the output circuit.
• Isolation: Ensure proper isolation between input and output circuits to benefit from the voltage isolation feature of the optocoupler.

Frequently Asked Questions

Q: Can the TLP172A(F) be used in high-noise environments?
A: Yes, the TLP172A(F) provides noise immunity, making it suitable for operation in high-noise environments.