HCPL-181-00DE

The HCPL-181-00DE is an optocoupler manufactured by Broadcom Inc., designed for high-speed data communication and isolation in electronic circuits. This component is particularly useful in applications where electrical isolation is necessary to protect sensitive components from high voltages or noise.

Key Features:

1. Isolation Voltage: The HCPL-181-00DE provides a high isolation voltage, typically rated at 5000 VRMS, ensuring that the input and output sides are electrically isolated from each other. This is crucial for protecting low-voltage circuits from high-voltage spikes.

2. Data Rate: This optocoupler supports high-speed data transmission, with a typical data rate of up to 1 Mbps. This makes it suitable for applications requiring fast signal transfer, such as in communication systems and data acquisition.

3. Input and Output Configuration: The device features a photodiode and a phototransistor configuration. The input side consists of an infrared LED that, when activated, emits light. This light is detected by the phototransistor on the output side, allowing for signal transfer while maintaining electrical isolation.

4. Package Type: The HCPL-181-00DE is housed in a compact 8-pin DIP (Dual In-line Package) form factor, which is suitable for through-hole mounting. This design allows for easy integration into various circuit boards and systems.

5. Temperature Range: The device operates effectively over a wide temperature range, typically from -40°C to +100°C, making it suitable for use in diverse environmental conditions.

6. Low Input Current: The optocoupler is designed to operate with a low input current, which enhances its efficiency and reduces power consumption. This feature is particularly beneficial in battery-powered applications.

7. Applications: The HCPL-181-00DE is commonly used in industrial automation, power supply feedback, signal isolation, and data communication systems. Its ability to provide reliable isolation makes it ideal for interfacing between different voltage levels and protecting sensitive components.

Electrical Characteristics:

• Forward Voltage (Vf): The forward voltage drop across the LED is typically around 1.2V at a specified forward current.
• Collector-Emitter Voltage (Vce): The maximum collector-emitter voltage for the phototransistor is generally around 30V.
• Current Transfer Ratio (CTR): The current transfer ratio is a key parameter that indicates the efficiency of the optocoupler, typically ranging from 50% to 600% depending on the specific conditions.

Conclusion:

The HCPL-181-00DE from Broadcom Inc. is a versatile and reliable optocoupler that provides essential isolation and high-speed data transfer capabilities for a wide range of electronic applications. Its robust design, combined with its efficient performance characteristics, makes it a popular choice among engineers and designers in the field of electronics.