Professional IC Distribution & Technical Solutions

The TLP520-2 is a photocoupler (optocoupler) manufactured by TOSHIBA. Below are its key specifications, descriptions, and features:

Specifications:

• Type: Dual-channel photocoupler
• Input Type: Infrared LED
• Output Type: Phototransistor
• Isolation Voltage (Viso): 2500 Vrms (min)
• Collector-Emitter Voltage (VCEO): 55 V (max)
• Collector Current (IC): 50 mA (max)
• Current Transfer Ratio (CTR): 50% (min) at IF = 5 mA, VCE = 5 V
• Turn-On Time (ton): 3 μs (max)
• Turn-Off Time (toff): 4 μs (max)
• Operating Temperature Range: -55°C to +110°C
• Package: DIP-8

Descriptions:

• The TLP520-2 consists of two independent GaAs infrared LEDs optically coupled to two silicon phototransistors in a single package.
• It provides electrical isolation between input and output circuits, making it suitable for noise suppression and signal transmission in high-voltage environments.
• Commonly used in digital logic isolation, power supply feedback control, and industrial automation systems.

Features:

• Dual-channel isolation for compact circuit design.
• High isolation voltage (2500 Vrms) ensures safety in high-voltage applications.
• Fast response time (μs range) for efficient signal transmission.
• Wide operating temperature range for industrial use.
• Compliant with safety standards (UL, cUL, VDE).

For detailed electrical characteristics and application notes, refer to the official TOSHIBA datasheet.