HCPL0638 Datasheet/PDFThe HCPL0638 is an optoisolator logic output to transfer electrical isolation between two circuits, while providing input-output signal level conversion. This device is powered by low-voltage supply and has a 5000Vrms isolation voltage rating. It offers reliable high-speed operation of up to 80 Mbps with a short propagation delay of just 4 ns. This product is suitable for a wide range of applications including medical equipment, industrial controllers, digital signaling, and test and measurement equipment.
Functionality & Benefits
The HCPL0638 optoisolator logic output device provides galvanic isolation to protect input and output circuits from interference. This helps to reduce interference between different systems and increase the reliability of data being exchanged between circuits. The device provides the functionality to transfer voltage signals. Plus, it delivers faster switching speed with a propagation delay of 4 ns, while the power dissipation is just 800 mW (max). The HCPL0638 also provides a dedicated output disable feature, which ensures complete reset of the device after power-on.
Features
- Input/Output Isolation of 5000 Vrms
- Propagation Delay of 4 ns
- Input Output Voltage Range from 3.0 V to 5.5 V
- Operating Temperature Range from –40°C to +85°C
- Surge Immunity Level of 4 kV/μs
- Dedicated Output Disable Feature
Applications:
The HCPL0638 optoisolator logic output device can be used in many different applications. It is ideal for industrial controllers, medical equipment, digital signaling, and test and measurement equipment. It can be used in applications such as motor control and isolated sensing. Also, this device offers robust circuit protection and high-speed performance to ensure reliable operation of the connected equipment.
Working Principle
For the HCPL0638 logic output optoisolator to work, an LED input source is required to transfer an electrical signal between two circuits. The LED source is modulated by an electrical signal, which is then converted into optical signals by the LED. These optical signals are then modulated by a photodiode receiver, which convert them back into an electrical signal. Consequently, the output of this device is the same as the input. The level of isolation is 5000Vrms and the device can work at speeds of up to 80 Mbps.
Conclusion
The HCPL0638 optoisolator logic output provides the best way to transfer electrical isolation between two circuits while providing input-output signal level conversion. It offers 5000Vrms of isolation, an operating temperature range of -40°C to +85°C, and a surge immunity level of 4 kV/μs. This device is ideal for applications such as motor control and isolated sensing, and is suitable for a wide range of applications in medical equipment, industrial controllers, digital signaling, and test and measurement equipment.