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TPS61169: TPS61169 - About PWM dimming level.

Guru 21045 points
Part Number: TPS61169

Hi Team,

 

Our customer would like to use TPS61169 at the following conditions.

 

[conditions]

-VIN=3.15V

-ILED=20mA

-LEDs=7strings

-PWM = 3.3V, 50kHz, Duty 1% to 100%

 

So, PWM level(3.3V) is higher than VIN(VIN=3.15V)

Can we use TPS61169 on this condition?

Could you please let us know if you have any concern?

 

[Background]

I understand that this does not have any problem.

(I referred to the datasheet.)


 

However, I found “A function generator capable of driving the PWM pin with 1.2 V to VIN amplitude” in the TPS61169EVM user’s guide. 


 

Regards,

Kanemaru