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ISOW7841: 3.3V(Vcc) -> 5V(Viso) mode

Part Number: ISOW7841

Hi Ti team!
In the Table 2 "Supply Configuration" shown some modes of work. But mode when power supply 3.3V(Vcc) -> 5V(Viso) is not recommended.
What the problem can I expect in this mode?

  • Hi Peter,

    Since 3.3V to 5V conversion requires boost operation, ISOW7841 currently does not support this operation. If you still operate the device at this voltage configuration, you might see the device working at room temperature for small loads but for other loads output might start dropping to lower voltages than datasheet spec limits. This functionality will not be guaranteed across load, across temperature and across devices.

    Koteshwar Rao