TPS92381: display backlight 42V 0.4A

dimming ratio: 2000:1 @200Hz or higher

output voltage: 18-42V

output current: 0.08-0.4A

Hi Peter,

The 4 channels of TPS92381 could be tied together to drive one LED string.

What's the input voltage? I'll see if we have other alternatives.

BR

Patrick

HI Patrick，

the input voltage either 12V or 24V,

some pojects are use 12V if the output voltage arround 24V ---less than 15inch LCD

some projects are use 24V if the output voltage more than 32V---greater then 18.5inch LCD

thanks!

with best regards,

PZ

Hi Peter,

Should one IC satisfy both two conditions?

BR

Patrick

HI Patrick，

it's not necessary to have one IC for both conditions,

thanks!

With best regards,

PZ

HI Patrick,

we could use the current one for the backlight which less than 15inch, 

could you please suggest which one is suitable for higher size LCD.

thanks!

With best regards,

PZ

Hi Peter,

Actually TPS92381 is also suitable for large size LCD. You can consider TPS61194 as well.

BR

Patrick

Hi Patrick，

the large size LCD backlight voltage is 48V, 480mA
could you please advise.

thanks!

with best regards,

PZ

Hi Peter,

You can refer to TPS61199 or TPS92390.

BR

Patrick

HI Patrick,

got it, thanks for your help. 

with best regards,

PZ

HI Patrick,

got it, thanks for your help. 

with best regards,

PZ