Toshiba TLP291-4 Optocoupler, Transistor Output, 4 Channel, SOIC-16

The Toshiba TLP291-4 is a high-performance optocoupler featuring an infrared LED optically coupled to a phototransistor. This 4-channel device is housed in a very small and thin SOIC-16 package, making it ideal for high-density surface mount applications. With a guaranteed wide operating temperature range from -55°C to 110°C, it delivers reliable performance in demanding environments.

Key Features and Benefits:

• Four independent channels in a compact SOIC-16 package
• High isolation voltage of 2500Vrms (AC, 60s, Ta = 25°C)
• Current transfer ratio (CTR) of 100% minimum (IF = 5mA, VCE = 5V, Ta = 25°C)
• Collector-emitter voltage of 80V (Ta = 25°C)
• Fast switching times: rise time 2µs typical, fall time 3µs typical
• Low input forward voltage: 1.20V typical (IF = 10mA, Ta = 25°C)
• Low collector-emitter capacitance: 10pF typical
• Total capacitance (input to output): 0.8pF typical

Technical Specifications:

The TLP291-4 provides a robust solution for signal isolation and noise immunity in various electronic systems. Its high CTR ensures efficient signal transfer, while the wide operating temperature range makes it suitable for industrial control applications. The device complies with major safety standards, ensuring reliability and safety in use.

Applications:

This optocoupler is particularly well-suited for programmable logic controllers (PLCs), switching power supplies, and simplex/multiplex data transmission systems. Its compact size and high performance make it a versatile choice for modern electronic designs.