Need help in designing high voltage (25-50V) driver

[vaibhavar]

Hi,

I want to design a high-voltage (~25-50V) driver circuit, which is fully on Silicon.
It can be for LCD/LED driver application.

Please suggest me some circuits or references. I need some starting point, so any simple circuit will be fine.


Thank you in advance
Vaibhav

 

[erikl]

Which process will you use? The design depends very much on that!
Otherwise: any opAmp design with appropriate driving capability could be your starting point. Just g00gle for it!

 

[leo_o2]

What's current driving capability? Detailed design spec is needed.

 

[vaibhavar]

Thank you for the prompt replies.

Which process will you use? The design depends very much on that!
Otherwise: any opAmp design with appropriate driving capability could be your starting point. Just g00gle for it!

I am using a process with HV FETs and I dont want to use external discrete components.

What's current driving capability? Detailed design spec is needed.

Frankly speaking, I have not finalized specs. Can you please suggest some specs. My idea is to design a circuit that uses HV tech., which can drive (say) 5-10 standard brightness LEDs. I think, the output voltage should be ~ 15-30V, with current rating of ~ 5-10 mA.

Please correct me, if my understanding is incorrect. Kindly provide some circuits/reference or pointers.

Thank You
Vaibhav