Other Parts Discussed in Thread: INA4180,
We would like to use the UCD90320 to sequence enable outputs, but use the AMON inputs for independent analog monitoring, not associated with rails. In other words, can we use the device to simply monitor various analog voltage levels without being tied to any rail logic? Example: We will go through an initial power regulator sequence using the enable outputs. At a certain point in the sequence, we would like to then monitor current levels from various sensors (using INA4180 current sense amplifier outputs connected to various AMON inputs) and independently make specific system gain adjustments that will affect those current levels.. Once the monitored currents are at the required levels, then further power regulators will be turned on by sequencing more enable outputs. The control of the system gain functions, that affect the current levels being monitored through the sensors at the AMON inputs, are independently controlled outside of the UCD90320. In this example case, we simply want to use the UCD90320 to independently monitor those current levels via our sensors and be able to read those levels through the PMB bus as part of an overall control function from our main system CPU. i.e., can the AMON inputs be logically independent of any rail logic in the UCD90320?