TPS61185: TPS61185: inrush current and direct PWM dimming question

Ann_Lien

Part Number: TPS61185

Hi Sean,

Sorry to be late. Would you kindly help to check below schematic? And I think it is direct PWM dimming(MODE connect to GND) and PWM signal is BL_PWM in below link waveform.

https://e2e.ti.com/support/power-management/f/196/p/764175/2828267#2828267

Best regards,

Ann Lien

over 5 years ago

0 Sean Zhou over 5 years ago

TI__Mastermind 22745 points

Hi Ann,
The schematic seems ok from my side, I want to make sure what's the LED counts for each string?
Regards
Sean

0 Ann_Lien over 5 years ago in reply to Sean Zhou

TI__Genius 12380 points

Hi Sean,

Thanks for reply! This is 6S7P application.

Best regards,

Ann Lien

0 Sean Zhou over 5 years ago in reply to Ann_Lien

TI__Mastermind 22745 points

Hi Ann,
For now, I don't have much commonc on your schematic. Thanks for the information, I suggest you to use a DC power supply to test again.
Regards
Sean

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TPS61185: TPS61185: inrush current and direct PWM dimming question