Survey LCM Panel Solution

Kuo John

Expert 1075 points

Other Parts Discussed in Thread: TPS65142, TPS65154, LP8557, TPS61176

Hi Team,

Could you help suggest TI solution for our LCM? Thanks.

LED Architecture is 6S3P / Input rang 5VDC / 22mA per CH

over 6 years ago

0 Diaara over 6 years ago

TI__Intellectual 2805 points

Hello Kuo John,

Could you please provide more details regarding the LCD bias requirement, the needed voltages and loads (e.g. AVDD voltage and load )?
TPS65154 and TPS65142 could be good candidates based on given info.

BTW, I deleted the attachment because it has confidential marking.

Best regards,
Diaara

0 Ilona over 6 years ago in reply to Diaara

TI__Expert 8010 points

Hello Kuo John,

Do you have a feedback for us?

Best Regards.
Ilona

0 Kuo John over 6 years ago in reply to Ilona

Expert 1075 points

Dear sir,

Update current status. Confirm with our customer panel spec and read E2E other post.
I plan design LP8557 and TPS61176. Could you help us to comment two device? thanks.
e2e.ti.com/.../2131825

Regards,
John

0 Ilona over 6 years ago in reply to Kuo John

TI__Expert 8010 points

Hello John,

From the specification of the LED driver it needs 3 channels a 22 mA and then connect 6 LED's in parallel. So I think you should be ok by using one LED driver that can drive < 30 mA per channel and goes higher than 24 V. Why did you decide to use two LED driver?
Btw, does your system not require the LCD bias as well? Or is there already a solution provided, if so can you let me know which.

Thank you.
Best Regards.
Ilona

0 Ilona over 6 years ago in reply to Ilona

TI__Expert 8010 points

Hello John,

Do you have any feedback for this?

Thank you.
Best Regards.
Ilona

0 Ilona over 6 years ago in reply to Ilona

TI__Expert 8010 points

Hello John,

Could you provide us feedback about your request? Otherwise I will close this thread.

Thank you.
Best Regards.
Ilona

Power management

Power management forum

Survey LCM Panel Solution