Other Parts Discussed in Thread: LM324, LM2902
Hello, I have a question about behavior of TLV9054 inputs during shutdown or no supply.
The context is: I am designing a battery management system where batteries are separated when USB (5V) is connected, and batteries are connected in series upon disconnect from USB (totaling 6-9V). With the batteries connected to a multiplexer, I check the polarity and voltage of each cell independently. So the cells do not 'see' each-other through the multiplexer, I will buffer the multiplexer inputs with TLV9054 ICs configured as a unity gain buffers, one for each battery cell (each with series resistor to limit current). This means that a TLV9054 input pin might be at or near 9V while there is no input supply.
While unpowered, can the TLV9054 input pins be out of range, or will this damage the IC?
Alternatively, can the 'shutdown' mode be used to protect the input pins from out-of-range voltages? For example, while the TLV9054 is powered, and in shutdown mode, can the pins have voltages out of range?
Thank you.
