The TLV902xL1 open-drain output is high during the POR period. After the POR period the latch is armed and latches low upon the first high-to-low output transition.The following is a summary of the latch operation.
- Output is high during the POR period at first power-up.
- During POR period, input transition is ignored.
- Following the POR period, comparator is armed and monitors inputs.
- IN- now higher than IN+, setting output low and latching low.
- IN+ greater then IN-, but output still remains low (latched).
- CLR falling edge resets latch for next transition. IN+ > IN-, output remains high and armed for next input transition.
- IN- > IN+, setting output low and latching again. Output remains latched even when IN+ > IN-.