Activity for newbie
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Comment | Post #292998 |
Yes I decided to go with Pull up (more) |
— | 22 days ago |
| Comment | Post #292999 |
You are correct when SHDN is low the chip is in shutdown mode. As you suggested I will connect a 100K pull down to ground.
May I know in general how we are calculating the value of pull down resistor. (more) |
— | 26 days ago |
| Edit | Post #292998 |
Post edited: |
— | 27 days ago |
| Edit | Post #292998 |
Post edited: |
— | 27 days ago |
| Edit | Post #292998 | Initial revision | — | 27 days ago |
| Question | — |
Controlling the shutdown pin of an IR Transceiver I am using an IR transceiver in my design.This IC is working at 3.3V supply.This IC need not be on always so I decided to give a control to it's shut down pin (Pin no 5,Shutdown Input. Active low).A transistor switch is used for this purpose.When the switch is ON the transceiver will be active and wh... (more) |
— | 27 days ago |
| Comment | Post #292938 |
The leakage current is 10nA at room temperature.This circuit is for POC.We will be using it at room temperature only.
(more) |
— | about 1 month ago |
| Edit | Post #292933 |
Post edited: |
— | about 1 month ago |
| Edit | Post #292933 |
Post edited: |
— | about 1 month ago |
| Edit | Post #292933 | Initial revision | — | about 1 month ago |
| Question | — |
Controlling the Low power mode of Buck Boost converter using a Microcontroller I am using TPS63000 in my design and I need to control PS/SYNC pin using a micro-controller. The input to the buck boost converter is 3V to 4.3V which is coming from a battery. The microcontroller is working at 3.3V. I doubt the BJT option will work always or not. Any other circuit suggestio... (more) |
— | about 1 month ago |
| Edit | Post #291348 |
Post edited: |
— | 8 months ago |
| Edit | Post #291348 | Initial revision | — | 8 months ago |
| Question | — |
Flash light frequency and rise time calculation I was analyzing the design a hazard warning light.The spec of the light turn on off is given below. > The flashing-light frequency shall be 90+/-30 times per minute. May I know in this case the frequency(ignoring 30) will be 60/90Hz or 90/60Hz? The designer used this IC to generate the PW... (more) |
— | 8 months ago |
| Edit | Post #291346 |
Post edited: |
— | 8 months ago |
| Edit | Post #291346 | Initial revision | — | 8 months ago |
| Question | — |
How do we calculate signal rise time from frequency May I know how to calculate a signals rise time from it's frequency. I found this article for the same. The formula given is Tr = 1/fπ. May I know is this applicable for PWM also. (more) |
— | 8 months ago |