1. this is a battery powered application & have to very low power.
There are two power supplies, task is when one goes below +5V, I have to send a high signal to output. So that I can turn off a switch.
2. Attached a ckt using TLC3702. Whenever V1 goes below 5V, I have set output high. V2 max is 12.6V. I have also grounded channel 2 pins, since it is not used so better to pull them low.
3. Now TLC3702 have current consumption of 20uA itself.
Voltage divider of V1 has total 1M of value. V1 varies from 5V-20V. So max current to ground will be 20uA here also. Can I set high voltage divider value to TLC3702 pins?
Also now main current path is V1 with zener path. I = (12v-2.7)/100k = 93uA.
Can I increase R1(100k) further, so that zener can still maintain 2.7V across it & don't have any affect on TLC also
There are two power supplies, task is when one goes below +5V, I have to send a high signal to output. So that I can turn off a switch.
2. Attached a ckt using TLC3702. Whenever V1 goes below 5V, I have set output high. V2 max is 12.6V. I have also grounded channel 2 pins, since it is not used so better to pull them low.
3. Now TLC3702 have current consumption of 20uA itself.
Voltage divider of V1 has total 1M of value. V1 varies from 5V-20V. So max current to ground will be 20uA here also. Can I set high voltage divider value to TLC3702 pins?
Also now main current path is V1 with zener path. I = (12v-2.7)/100k = 93uA.
Can I increase R1(100k) further, so that zener can still maintain 2.7V across it & don't have any affect on TLC also
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