The LTV816STP-D3-TXCU is a single-channel phototransistor optocoupler manufactured by Lite-On Inc. It is designed to provide electrical isolation between circuits, protecting sensitive components from high voltages or noise. This optocoupler uses an infrared emitting diode (IRED) and a phototransistor to transfer signals without a direct electrical connection.

Applications

• Industrial Control Systems: Isolating control signals to protect PLCs and other sensitive equipment.
• Power Supplies: Providing feedback isolation in switching power supplies.
• Motor Control: Isolating motor drive circuits from control circuitry.
• Data Communication: Isolating data lines to prevent ground loops and noise.
• Instrumentation: Isolating sensitive measurement circuits from high-voltage sources.

Features

• Single-Channel Configuration: Provides isolation for a single signal line.
• High Isolation Voltage: Offers a high level of electrical isolation between input and output.
• Current Transfer Ratio (CTR): Specifies the ratio of output current to input current.
• Compact Package: Small package size for space-constrained applications.
• RoHS Compliant: Meets environmental regulations for hazardous substances.

Benefits

• Electrical Isolation: Protects sensitive circuits from high voltages and transients.
• Noise Immunity: Reduces noise coupling between circuits.
• Improved System Reliability: Prevents ground loops and improves overall system stability.
• Simplified Design: Eliminates the need for complex isolation techniques.
• Compliance with Safety Standards: Meets safety requirements for isolation in various applications.

Additional Details

The LTV816STP-D3-TXCU consists of an infrared LED and a phototransistor housed in a single package. When current flows through the LED, it emits infrared light that activates the phototransistor, allowing current to flow in the output circuit. Key specifications include isolation voltage, current transfer ratio, input forward voltage, and output collector-emitter voltage. Proper external components, such as current-limiting resistors, are required for proper operation. The device is typically supplied in a DIP package. The TXCU suffix likely indicates specific testing or binning parameters for current transfer ratio. Absolute maximum ratings should be observed to prevent damage to the device. The optocoupler is suitable for various industrial and consumer electronic applications requiring galvanic isolation.