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.

  • Resolved

ISOW784x for higher than 5V isolated rail

Prodigy 90 points

Replies: 1

Views: 275

Hi, I am planning on using this device as a gate driver for a small GaN converter.

However for the GaN Mos I am using, the gate voltages is suggested to be at about 6V: if I power Vcc at 5.5V (max operating voltage), and connect SEL to Viso, will the output be 5.5V too?

Thank you

  • Hi Marco,

    Thank you for showing your interest to use ISOW784x for your application. Since the output voltage of ISOW784x is closed-loop regulated, the output is going to be set to ~5V typically. The output can vary between 4.5V to 5.43V based on output load, temperature and sample-to-sample variation but in most cases and for most samples it will be very close to 5V. Hence the device cannot be used to generate 5.5V.

    I hope that answers your question. An alternative discrete but still compact solution would be the SN6505 based isolated power supply. Please have a look at SN6505A/B datasheet that uses simple push-pull transformer to generated isolated voltage keeping the design simple. Let me know if you have any other questions, thank you.


    Regards,
    Koteshwar Rao

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.