ti 04050c Question

[Poto]

This is in response to:

http://www.e-cigarette-forum.com/forum/battery-mods/227266-booster-flash-light.html#post4222996

(Admins, I would appreciate moving this post there, thank you)

The spec sheets for the 04050c have the minimum v_o as 5V, but you state that the voltage range is 4-5.6V. How was this accomplished? (please forgive me if the answer is simple, i only know enough about electronics to seriously injure myself)

Thank you

-Poto

 

[dormouse]

Poto - once you have one more post or reply for 5 total (like reply to this post and that would be 5) then an hour later you can post elsewhere on the forum. Then you could post that where it's needed.

 

[Dalton63841]

Its magic. For starters, a resistor is placed between Vout and Vadj. That pushes it down a bit. Then a diode is placed after Vout. The combination of those two things, depending on what resistors you use, can actually get the voltage out as low as 3.7v.

Once you get to the modders forum, there is a wealth of info. This isn't even the tip of the iceberg.

 

[Poto]

A resister between Vout and the adjust pin? Ok, Im assuming you're running without a set resister right, running the adj pin OPEN, for the smallest Vout - 5V. So, instead of using a resister twis adj-gnd, youre putting one between adj-Vout?? Is that correct?

 

[mlinky]

A resister between Vout and the adjust pin? Ok, Im assuming you're running without a set resister right, running the adj pin OPEN, for the smallest Vout - 5V. So, instead of using a resister twis adj-gnd, youre putting one between adj-Vout?? Is that correct?

Hey Poto. You now have 5 posts. Once the server backs up (within an hour), you can post over in the modders forum

 

[Dalton63841]

A resister between Vout and the adjust pin? Ok, Im assuming you're running without a set resister right, running the adj pin OPEN, for the smallest Vout - 5V. So, instead of using a resister twis adj-gnd, youre putting one between adj-Vout?? Is that correct?

There is a resistor between Vout and Vadj, AND a resistor and POT between Vadj and Ground. All the homework is there in the modders forum.