The TLP185GB(GB-TPL,E) is a high-isolation voltage, small-outline photocoupler from Toshiba Semiconductor and Storage. It's designed for applications requiring electrical isolation between input and output circuits. This device features a gallium arsenide (GaAs) infrared emitting diode (IRED) on the input side and a phototransistor on the output side, providing excellent isolation characteristics in a compact package.

Applications

• Programmable Logic Controllers (PLCs): Used for isolating digital inputs and outputs in industrial control systems.
• Inverter Control: Provides isolation between the control circuitry and the high-voltage power stage in inverters.
• AC Servo Motor Control: Isolates the control signals from the motor drive circuitry, enhancing safety and reliability.
• General Purpose Inverters: Used in various inverter applications to protect sensitive control circuits from high voltages.
• Switching Power Supplies: Ensures isolation between the primary and secondary sides of the power supply.

Features

• High Isolation Voltage: Offers a high isolation voltage rating (typically 3750 Vrms) ensuring reliable electrical isolation.
• Small Outline Package: Compact GB-TPL package allows for high-density mounting on PCBs.
• High Collector-Emitter Voltage: Supports a high collector-emitter voltage, suitable for various applications.
• Low Input Current: Requires a low input current for activation, making it compatible with low-power control circuits.
• Operating Temperature Range: Wide operating temperature range, typically from -55°C to +110°C, suitable for industrial environments.
• Pb-Free: Compliant with RoHS directives, ensuring environmental friendliness.

Benefits

• Enhanced Safety: Provides a high level of electrical isolation, protecting control circuits and operators from high voltages.
• Compact Design: The small outline package saves valuable PCB space, enabling miniaturization of electronic devices.
• Improved Reliability: Galvanic isolation prevents ground loops and noise, improving the overall reliability of the system.
• Simplified Design: Reduces the complexity of circuit design by providing a simple and effective isolation solution.
• Versatile Application: Suitable for a wide range of applications due to its high isolation voltage and compact size.

Additional Details

The TLP185GB(GB-TPL,E) features a current transfer ratio (CTR) that varies depending on the input current and operating conditions. The forward voltage is typically around 1.2V, and the collector-emitter breakdown voltage is rated to withstand high voltages. This photocoupler is designed to meet stringent safety standards and provide reliable performance in demanding applications. Detailed specifications regarding CTR, switching speeds, and other parameters can be found in the Toshiba datasheet.