The HCPL-181-00E is a high-speed optocoupler manufactured by Avago Technologies (now Broadcom). It is designed to provide electrical isolation between circuits while enabling fast digital signal transmission. This optocoupler is commonly used in applications requiring galvanic isolation to protect sensitive circuitry from high voltages or ground loops.

Applications

• Digital logic isolation
• Microprocessor system interfaces
• Switching power supplies
• Motor control
• Data transmission
• Industrial control systems

Features

• High-speed operation
• High common-mode transient immunity
• High isolation voltage
• Compact package (DIP-8 or SO-8)
• TTL/CMOS compatible
• Safety approvals (e.g., UL, CSA, VDE)

Benefits

• Provides electrical isolation to protect sensitive circuits from high voltages or ground loops.
• Enables fast and reliable digital signal transmission with its high-speed operation.
• Minimizes the risk of spurious triggering due to noise with its high common-mode transient immunity.
• Allows direct interface with TTL and CMOS logic circuits.
• Ensures compliance with safety standards for use in various applications.

Additional Details

The HCPL-181-00E features a high isolation voltage, typically several kilovolts, providing robust protection against voltage transients and ground loops. The high common-mode transient immunity ensures that the optocoupler is not falsely triggered by noise on the input or output lines. The device is available in a compact package, such as DIP-8 or SO-8, making it suitable for space-constrained applications. It is designed to be compatible with TTL and CMOS logic levels, allowing for easy integration into digital circuits. The device complies with various safety standards, such as UL, CSA, and VDE, ensuring its safe use in industrial and commercial applications. The internal LED is typically made from AlGaAs. The output transistor is usually a phototransistor.