The TLP290(GB-TP is a small outline phototransistor coupler, manufactured by Toshiba Semiconductor and Storage. This device consists of a gallium arsenide infrared emitting diode optically coupled to a silicon phototransistor. It is designed for high-density mounting applications and offers excellent electrical isolation between the input and output circuits.

Applications

• Programmable Logic Controllers (PLCs)
• Factory automation equipment
• Measuring instruments
• Telecommunication equipment
• Power supplies

Features

• Small Outline Package (SOP)
• High isolation voltage (typically 3750 Vrms)
• Current transfer ratio (CTR) of typically 50% (at IF = 5mA, VCE = 5V)
• Operating temperature range: -55°C to 110°C
• RoHS compliant

Benefits

• Provides electrical isolation between circuits
• Helps prevent ground loops and noise
• Enables signal transfer without direct electrical connection
• Reduces the risk of electrical shock
• Suitable for high-density mounting due to its small size

Technical Specifications

The TLP290(GB-TP features a collector-emitter voltage (VCEO) of typically 80V, and a collector current (IC) of 50mA. The forward voltage of the infrared LED is around 1.2V. The isolation voltage between input and output is guaranteed to be at least 3750 Vrms for one minute. It is available in a 4-pin SOP package. The exact specifications such as switching times, CTR variations, and detailed thermal characteristics are available in the official Toshiba datasheet.

This optocoupler is frequently used in applications where safety isolation is paramount. It allows for data communication or control signals to be transferred between circuits operating at different voltage levels or with different ground potentials. Its compact size and high isolation voltage make it a suitable choice for various industrial and consumer electronic devices. The TLP290(GB-TP from Toshiba offers a robust and reliable solution for electrical isolation needs.