LP5810: analog dimming

Austin Do

Expert 4035 points

Part Number: LP5810

Tool/software:

Hello team,

My customer wants to set analog dimming, not PWM dimming.

It seems PWM duty should be set 50% even if the device is set to analog dimming mode. Is this correct?

Also, is it necessary to set 50%? How about programming another duty like 100% or 75%?

(+) LP5812: LP5812/LP5810 - Power management forum - Power management - TI E2E support forums

(+) [FAQ] LP5812: Quick program steps guide for LP5812, LP5810 - Power management forum - Power management - TI E2E support forums

Best Regards,

Austin

over 1 year ago

0 Steven Li over 1 year ago

TI__Mastermind 23490 points

Hi Austin,

Our expert is currently out of office. I will ask another expert to help on this thread. He will respond to you later. Thanks for your understanding.

Best Regards,

Steven

+1 Felix Wang over 1 year ago

TI__Expert 7240 points

Hi Austin,

No, the LP5810 supports both PWM dimming and Analog dimming at the same time, which means you can set the PWM duty as any value (0 to 100%) through the Manual_PWM_x register while setting the analog dimming value through Manual_DC_x register.

Best regards,

Felix