The TLP718(TP,F is a high-speed photocoupler from Toshiba Semiconductor and Storage, designed for digital logic interfacing and high-speed data transmission applications. This device features a gallium arsenide (GaAs) light-emitting diode (LED) optically coupled to a high-gain, high-speed photodetector IC chip. The TLP718 offers excellent performance in terms of propagation delay, pulse width distortion, and common-mode transient immunity, making it suitable for demanding digital isolation requirements.

Applications

• Digital Logic Isolation: Isolates digital signals between circuits operating at different voltage levels or with different ground potentials.
• High-Speed Communication Interfaces: Used in various communication interfaces, such as RS-485, where electrical isolation is required.
• Programmable Logic Controllers (PLCs): Isolates input and output modules from the central processing unit.
• Inverter Control: Used to isolate control signals to power transistors in motor drives and inverters.
• SMPS (Switch Mode Power Supplies): Provides feedback isolation and control signal isolation.

Features

• High-Speed Operation: Offers fast switching speeds with short propagation delays.
• High Common-Mode Transient Immunity: Provides excellent immunity to noise and voltage transients, preventing spurious triggering.
• Guaranteed Performance over Temperature: Specified performance characteristics are guaranteed over a wide operating temperature range.
• Compact Package: Available in a small outline package for space-saving designs.
• Safety Standards Compliance: Approved by various safety standards organizations for reinforced insulation.

Benefits

• Enhanced System Reliability: Electrical isolation prevents ground loops and reduces noise, improving system reliability.
• Improved Safety: Provides reinforced insulation, protecting users and equipment from high voltages.
• Simplified Design: Reduces the need for complex level-shifting circuits.
• Increased System Performance: High-speed operation enables faster data transfer and control.
• Reduced Component Count: Integration of the photodetector IC simplifies circuit design.

Additional Details

The TLP718(TP,F features a typical propagation delay time in the nanosecond range. It operates from a single supply voltage. The device is available in a SO package. It is compliant with industry safety standards, providing reinforced insulation. The isolation voltage is rated to withstand high voltage transients, making it suitable for harsh industrial environments.