TLP351H

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TLP351H

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  • ManufacturerToshiba

  • Mfr. Part #TLP351H

  • In Stock2659

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Specifications

Attribute Value
Brand Toshiba
Product Type Optically Isolated Gate Drivers

Overview

Description

The TLP351H is an optocoupler designed for high-speed data transmission and isolation in electronic circuits. It features a gallium arsenide infrared LED and a high-speed photodetector, allowing for low power consumption and fast switching speeds. Typically, it has a voltage rating of around 5 kV, making it suitable for applications requiring electrical isolation.
The TLP351H is commonly used in communication systems, industrial automation, and power supply circuits. Its compact package and reliable performance make it ideal for PCB designs where space is a constraint. The device supports various communication protocols and can handle data rates up to several megabits per second.
Overall, the TLP351H provides efficient signal isolation, reduces the risk of ground loops, and enhances system reliability. It's essential for engineers to consider parameters such as input-output isolation voltage and switching speed when implementing the TLP351H in their designs.

Equivalent

The TLP351H chip is an optocoupler with a phototransistor output. Equivalent products include the TLP351, TLP351A, and TLP351B from Toshiba. Other alternatives can be found from different manufacturers such as the H11B1 and H11B2 from Avago, or the PC817 from Sharp. Always verify specifications to ensure compatibility with your application.

Features

The TLP351H is an optoisolator featuring a phototransistor output, designed for high-speed signal transmission while providing electrical isolation. Key features include:
1. High-Speed Operation: Fast switching speeds, typically up to 1 MHz, making it suitable for high-frequency applications.
2. Isolation Voltage: Provides a high isolation voltage of up to 5,000 Vrms, ensuring safety in sensitive circuits.
3. Compact Package: Available in a 4-pin DIP configuration, facilitating easy integration into various circuit designs.
4. Low Power Consumption: Designed for efficient operation with minimal input current requirements.
5. Wide Operating Temperature Range: Functions effectively across a temperature range of -40°C to +100°C, enhancing reliability in diverse environments.
6. High Gain: Offers high current transfer ratio (CTR), ensuring effective signal transmission with low input current.
7. Applications: Commonly used in data communication, industrial control systems, and circuit protection.
These features make the TLP351H an excellent choice for ensuring reliable operation in isolated signal pathways.

Pinout

The TLP351H is an optocoupler with a total of 4 pins. Its pin configuration is as follows:
1. Anode (A): This is the input pin where the positive terminal of the LED (light-emitting diode) is connected.
2. Cathode (K): This is the input pin where the negative terminal of the LED is connected.
3. Collector (C): This is the output pin connected to the phototransistor's collector, which can be linked to a supply voltage for the output circuit.
4. Emitter (E): This is the output pin connected to the phototransistor's emitter, typically grounded in use.
The function of the TLP351H is to provide electrical isolation between its input and output while allowing signal transfer through light. It is commonly used in applications such as data communication, signal isolation, and switching circuits to ensure safety and reduce noise in electronic systems.

Manufacturer

The TLP351H is manufactured by Toshiba Corporation, a multinational conglomerate based in Japan. Toshiba specializes in a wide range of products and services, including electronics, semiconductors, and information technology. Founded in 1939, the company has established itself as a leader in innovation and technology solutions, offering products in sectors such as energy, storage, and social infrastructure, alongside consumer electronics. Toshiba is particularly known for its contributions to the semiconductor industry, where it develops various components, including optoisolators like the TLP351H, which are used in diverse applications for signal isolation and control in electronic devices. The company emphasizes sustainability and advanced technology, playing a significant role in the global electronics market.

Application

The TLP351H is an optocoupler used in various applications, including:
1. Signal Isolation: To protect sensitive electronics from high voltages by isolating control signals.
2. Data Communication: In digital communication systems for transmitting signals across different voltage levels.
3. Power Supply Systems: For feedback circuits in switch-mode power supplies, ensuring safe operation.
4. Industrial Automation: In control systems and PLCs for isolating inputs and outputs.
5. Consumer Electronics: For safety and isolation in devices like TVs and audio equipment.
6. Automotive Applications: In vehicle control systems to ensure reliable signal transmission.
These applications leverage its high-speed operation and voltage isolation capabilities.

Package

The TLP351H is typically packaged in a 6-pin DIP (Dual In-line Package) format. This package allows for easy integration into electronic circuits, providing reliable connections for its function as an optocoupler.

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