Activity for newbie
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Comment | Post #292998 |
Yes I decided to go with Pull up (more) |
— | almost 2 years 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) |
— | almost 2 years ago |
| Edit | Post #292998 |
Post edited: |
— | almost 2 years ago |
| Edit | Post #292998 |
Post edited: |
— | almost 2 years ago |
| Edit | Post #292998 | Initial revision | — | almost 2 years 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 an... (more) |
— | almost 2 years 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) |
— | almost 2 years ago |
| Edit | Post #292933 |
Post edited: |
— | almost 2 years ago |
| Edit | Post #292933 |
Post edited: |
— | almost 2 years ago |
| Edit | Post #292933 | Initial revision | — | almost 2 years 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 sugge... (more) |
— | almost 2 years ago |
| Edit | Post #291348 |
Post edited: |
— | over 2 years ago |
| Edit | Post #291348 | Initial revision | — | over 2 years 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 th... (more) |
— | over 2 years ago |
| Edit | Post #291346 |
Post edited: |
— | over 2 years ago |
| Edit | Post #291346 | Initial revision | — | over 2 years 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) |
— | over 2 years ago |
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