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Part Number: ISOW7841
I am working with a customer on their ISOW7841 design and we are seeing extremely large voltage ripple on the Viso output rail.
Figure 30 of the datasheet shows that Vpp should be less than 100mV at 5V full load.
In testing, the customer has 10uF on Viso and using a dummy load of 4.7kOhm or 120Ohm. See scope-shots below for the ripple they are seeing under both conditions. Note that both waveforms are averaging under 5V.
Let me know what steps we can take to narrow in on the issue here.
Thank you!Ryan B.
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