Other Parts Discussed in Thread: PMP3672, TPS92075, PMP4347, TPS92314
Thank you for your cooperation usually.
Customer think TPS92210 (PMP3672) seems good solution for their next project.
Customer changed spec to follow PMP3672 as per your advice.
70V ( 2.4V * 28 series =67.2V) ==>change spec==> 2.4V * 14= 33.6V
400mA =>change spec==> 800mA
size 30mm x 18mm x 8mm for T8 tube
( non-isolation topology should be fine)
I did not find out calc tool in case non-isolated for TPS92210.
Customer want to customize PMP3672.
I see TPS92210EVM Design Tool 11.01.26 is for isolated only.
How do we calculate L4,L5 if LED current increased ?(PMP3672(50V/0.35A default: 56uH + 56uH)
If LED current was 800mA, it should be calculated as
0.35/0.8 *56 24.5uH + 24.5uH?
( Is this Okay for stating point?)
I should take care saturation Current rating should twice.
How do we calculate L3? ( not necessary to change from PMP3672?)
Thank you for your support