Category: Hardware
Product Number: lt1932
Thanks for having written the application note concerning the LT1932.
I need to use LT1932 to control the two white led of my sun readable display ( high power led).
My problem is that the two led are in parallel and have a Vf = 6.4V. Each consume 20MA so 40mA in total .
I'm powering the LT1932 with 3v3.
So I need 40mA and 6.4V to be able to have the full capability of the backlight. In the datasheet , it is mentioned : led pin voltage =0.12V, what seems to be far from my 6.4v target.
Am I wrong ?
I tried the LTSpice model to check if the voltage will reach the 6.4V but i guess i need to create a custom led profil may be ?
I also tried to play with brightness control but current doesn't move, may be spice model doesn't take this into account ?
Thanks for your help