Power delay for secondary device

Thread Starter

puneethskumar

Joined Nov 18, 2019
8
Dear Team,
There is a pull up resistor at one end i am giving a voltage of +3.3v but while measuring on the other end initial i am getting 1.6v & later after some time i am getting 2.5v that time my secondary device is getting power.
 

Attachments

AlbertHall

Joined Jun 4, 2014
8,822
The resistor and capacitor have a time constant of 100ns. For the voltage to rise close the final value will take about ten times that or 1ms.
Are you seeing a delay greater that?
 

AnalogKid

Joined Aug 1, 2013
8,229
The final output voltage depends on the impedance or current draw of whatever the output is connected to. Please describe the system that this circuit is in, and what the "Output" goes to.

ak
 

TeeKay6

Joined Apr 20, 2019
532
I was only out by a factor of 1000. That's closer than many of our politicians are (UK).
It should be 100us so final settling in 1ms.
You had the right result so let's just accept that you accidentally typed an "n" instead of "u". :) I don't think there is much difference among politicians of any country: tell them what they want to hear, then do what you always intended to do.
 

Thread Starter

puneethskumar

Joined Nov 18, 2019
8
The final output voltage depends on the impedance or current draw of whatever the output is connected to. Please describe the system that this circuit is in, and what the "Output" goes to.

ak

There is a IC which generates internal 3.3V I am using that voltage , there is a reset pin in that IC(It should be high) , so typically when voltage is low the power is not going.
 
Top