The TLP185(V4-TPL is a high-isolation, small outline photocoupler manufactured by Toshiba Semiconductor and Storage. It consists of an infrared emitting diode (LED) optically coupled to a phototransistor. This configuration provides electrical isolation between the input and output circuits, making it suitable for applications requiring safety and noise immunity.

Applications

• Programmable logic controllers (PLCs)
• Inverter circuits
• Switching power supplies
• Industrial control equipment
• Measurement equipment
• Office automation equipment

Features

• High isolation voltage: Provides high electrical isolation between input and output.
• Small outline package: Saves board space in compact applications.
• High current transfer ratio (CTR): Provides efficient signal transfer.
• Low input current: Requires a low input current for operation.
• High switching speed: Supports high-speed signal transmission.
• RoHS compliant: Compliant with RoHS environmental regulations.

Benefits

• Enhanced safety: High isolation voltage provides enhanced safety in hazardous environments.
• Improved noise immunity: Electrical isolation minimizes noise interference.
• Space-saving design: Small outline package allows for compact designs.
• Efficient signal transfer: High CTR provides efficient signal transfer with low input current.
• Versatile applications: Suitable for a wide range of industrial and commercial applications.

Additional Details

The TLP185(V4-TPL features a minimum isolation voltage of 3750Vrms. The current transfer ratio (CTR) varies with the input current and temperature. The forward voltage of the LED is typically around 1.2V. The collector-emitter breakdown voltage of the phototransistor is typically greater than 80V. This photocoupler comes in a 4-pin SO4 package. The operating temperature range typically spans from -55°C to +110°C. It is commonly used for isolating digital signals in noisy environments and providing safety isolation in high-voltage applications.