Other Parts Discussed in Thread: TPS3840
Section 7.7 of the datasheet shows several figures (Figure 7 through 9) of supply current vs supply voltage at different operating temperature points.
All of these curves do not show a spike (or dynamic change) at the point of passing through the threshold of Vit-.
Is this an omission, or truly there is negligible increased current draw at this point (either negative going or positive going through Vit-)?
When the TPS3840 is connected directly to a supply rail (no resistor divider), this is not as important. However, if a resistor divider is used with high-value resistors when monitoring a high voltage, a spike of current at the transition point could cause oscillations.
Is there additional information that can be shared about the behavior of the supply current at this point:?