Hi,
I understand that the DT024CTFT-TS has a back-lighting system of three LEDs wired in series which requires +9.6V at a constant current If=20 mA mode of operation. Our system has maximum voltage of 5V.
1. Do you have a similar LCD (Size and Pins) that uses lower voltage for the backlight LEDs?
2. Will the current LED be able to run on lower voltage of 5V and 20 mA?
3. Any suggestions on how to DC-to-DC step-up the 5V to 10V?
Thanks a lot for your help.
Hi,
You are interested in 2.4". The only other alternative in 2.4" is the D version which has a Vf=12V.
Have you seen the at the reference schematic at the bottom of the product page?
https://www.seacomp.com/product/2-4-inch-tft-lcd-dt024ctft
It shows you how to boost the input voltage to drive the backlight.
https://www.seacomp.com/sites/default/files/references/DT024CTFT-MCU-Reference-Design-REVA1.pdf
If the "CAT" IC shown doesn't, look in the same series for the one you need.