Other Parts Discussed in Thread: TPS386000
Hi, TI Support Team
A customer company is using the TPS386000-Q1 to review the circuit.
The master (TPS386000-Q1) is controlling the MR pins of up to 5 slaves (TPS386000-Q1) through Reset out.
At this time, 3.3V pull-up is applied to the slave's MR pin, but it has been reported that the level drops to 1.6~2.4V.
In this case, if the pull-up resistor connected to the MR pin on the slave side is removed, it is said to operate normally.
Is there any problem in operation if I remove the pull-up resistor connected to the MR pin?
(The datasheet is linked.)
What is the expected cause of the level drop in the condition in question?
For reference, the circuit diagram is attached.