The customer wants to check bq24104 safety timer function within a short period <1s by checking TTC signal in their manufacutirng line.
We understand that safety timer is set by a capacitor at TTC pin and bq24104 counts the number of up/down at TTC signal. See bq24104 block diagram attached. Two current sources are designed to pull up and down TTC signal so that TIMER FF CHAIN counts the number of TIMER CLK.
3542.bq24104_InternalBlock.pdf
They wants to know what is the relation between TTC signal frequency vs safety timer. In other words, how many counts of TTC signal is needed to expire safety timer?
