TLC6C5724-Q1: TLC6C5724-Q1 local dimming 96 Zone design check

Lawrence He

Part Number: TLC6C5724-Q1
Other Parts Discussed in Thread: TIDA-020001, TLC5951

Dear

our client use TLC6C5724-Q1 to modify local dimming 96 zone, each one output channel 2S+2P LED (LED spec 20mA/2.6V~2.8V)

and we need double confirm below schematic.

TLC6C5724-Q1 schmatic:

123_BL_CTRL _ LED_Driver_Ctrl.pdf

LED driver schematic:

123_BL_CTRL _ DC-DC.pdf

If any suggestion, Please advise me.

Thanks,

Best regards,

Lawrence.

over 5 years ago

0 Anda Zhang over 5 years ago

TI__Expert 5380 points

Hi Lawrence,

Over all it is ok, only one small point, there is no need for such as big cap on each Vcc, 1uF+100nF cap close to Vcc pin is enough, as the current consumption is very low. I recommend to move the cap close to SENSE pin. By the way, which customer is using this device? Is there any TCON to realize the local dimming algrithm? If there is any more question, you can send mail to me (anda.zhang@ti.com)

0 Lawrence He over 5 years ago in reply to Anda Zhang

Genius 3280 points

Hi, Anda

Is mean move Vcc 1uF+100nF to close sense pin, right?

we just follow TIDA-020001 for reference.

customer is CPTT, They use Himax 8880 TCON

If any concern, Please advise me.

Thanks,

Best regards,

Lawrence.

0 user5851621 over 5 years ago in reply to Anda Zhang

Prodigy 10 points

Hi Anda
Thanks for your suggest.
Himax 8880 TCON with local dimming algrithm is one solution.
Have any other suggested for local dimming algrithm solution device?

0 Anda Zhang over 5 years ago in reply to user5851621

TI__Expert 5380 points

You can check with customer if Novatek has any TCON IC can support this, as the protocol of this IC is almost the same with TLC5951.

By the way, may i know who is the customer?

0 Lawrence He over 5 years ago in reply to Anda Zhang

Genius 3280 points

Hi, Anda

Thanks, our client is Chunghwa Picture Tubes Ltd. for Automotive application.

If any, Please advise me.

Thanks,

Best regards,

Lawrence.

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TLC6C5724-Q1: TLC6C5724-Q1 local dimming 96 Zone design check