The TLP112A(TPL) is a high-speed, logic-output photocoupler from Toshiba Semiconductor and Storage. It's designed for applications requiring electrical isolation between input and output, offering excellent noise immunity and high-speed data transmission. This photocoupler utilizes a gallium arsenide (GaAs) light-emitting diode (LED) on the input side and a phototransistor and integrated high-gain amplifier on the output side, making it ideal for various digital interface applications.

Applications

• Programmable Logic Controllers (PLCs): Used for isolating input/output signals in industrial control systems.
• Inverter Control: Provides isolation in motor control circuits for appliances and industrial equipment.
• High-Speed Digital Interfaces: Facilitates data transmission in digital communication systems, isolating sensitive circuitry.
• Measuring instruments: Isolation in measurement equipment ensures accuracy and safety.
• Office automation equipment: Protection of sensitive electronics in office machinery.

Features

• High-Speed Operation: Offers a typical propagation delay time of 20 ns, enabling fast data transmission.
• High Common-Mode Transient Immunity: Guarantees reliable operation in noisy environments with a common-mode transient immunity of ±10 kV/μs.
• Low Input Current: Requires a low input current of 5 mA, reducing power consumption.
• Open Collector Output: Provides a versatile output configuration for interfacing with different logic families.
• Operating Temperature Range: Operates reliably over a wide temperature range of -55°C to 100°C.

Benefits

• Electrical Isolation: Provides crucial electrical isolation between input and output circuits, protecting sensitive components from high voltage transients.
• Noise Immunity: Ensures reliable data transmission in electrically noisy industrial environments, preventing spurious signals from affecting the output.
• High-Speed Data Transmission: Facilitates fast and accurate data transfer, improving system performance.
• Reduced Power Consumption: Minimizes power consumption due to the low input current requirement, making it suitable for energy-efficient applications.
• Increased System Reliability: Enhances overall system reliability by isolating sensitive circuits and preventing damage from voltage surges or ground loops.

Technical Specifications: The TLP112A(TPL) has a minimum isolation voltage of 3750 Vrms. Its current transfer ratio (CTR) ranges from 50% to 300%. The storage temperature ranges from -55°C to 125°C. It is available in a DIP4 package.