This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ISO6762: How can I use this so that it serves as 2/4 channel Digital isolator

Part Number: ISO6762

My requirement is to convert signals from 1.8V (VCC1) to 5V (VCC2) and 2 drivers, 4 receivers. can i use ISO6762 because its 4/2 

  • Hello,

    Thank you for your question.

    Yes, you can use the ISO6762 device.

    Since you require four channels to receive and two channels to drive, the ISO6762 would be suitable for your purpose. The ISO6762 has 4 forward channels and 2 reverse channels.

    Each side of our digital isolators can be sourced independently with any voltage within recommended operating conditions. The ISO6762 VCC1 can be supplied with 1.8V (which is within 1.71V to 1.89V) and at the same time VCC2 can be supplied with 5V (which is also within 2.25V to 5.5V), So it would be suitable for your power supply requirements as well.

    Regards,
    Aaditya Vittal

  • Hi Aditya,

    Thanks for your Quick Reply. 

    I would like to connect 5V for VCC1 and 1.8V for VCC2. will my configuration works?.

    As per the datasheet i understand that, this configuration will push the outputs in undetermined state, please confirm my understanding is correct or not. 

  • Hello,

    Thank you for response.

    Yes, your configuration will work.

    As I stated in my previous post, each side of our digital isolators can be powered independently with any voltage within the recommended operating conditions. Please see the image below from the datasheet:

    VCC1 can be supplied with 5V (which is also within 2.25V to 5.5V) and at the same time VCC2 can be supplied with 1.8V (which is within 1.71V to 1.89V). This would work for your configuration. 

    For more information on having two different VCCs, please check this FAQ: [FAQ] Can I power the two sides of a digital isolator with different voltages? 

    Regards,
    Aaditya Vittal