TPS65261-1: I have a question about implementing the TPS65261-1 function.

BJ Han

Expert 2035 points

Part Number: TPS65261-1

Dear TI Team,

Would you help this request?

Integrate the PWM signal of the SoC as shown in the figure below and connect the signal to the DC-DC FB
Check if DC-DC output voltage control function is available.

-.ex) R1 : 13.3 kΩ, R2 : 27 kΩ, R3 : 69.8 kΩ, R4 : 75 kΩ, R5 : 1 kΩ, C1 : 2.2 uF, R6 option condition.

over 8 years ago

0 Zhao Ma over 8 years ago

TI__Genius 15135 points

Hi, Han

I think this diagram can achieve PWM to control Vcore voltage theoretically.

0 BJ Han over 8 years ago in reply to Zhao Ma

Expert 2035 points

Hi, Zhao
Thank you for your attention and support.
If possible, is there a way to calculate the time constant value as in the example above?
I need your help.
Thank you.

0 Zhao Ma over 8 years ago in reply to BJ Han

TI__Genius 15135 points

Hi, Han

What is the frequency and high-level voltage of PWM signal?

0 BJ Han over 8 years ago in reply to Zhao Ma

Expert 2035 points

Hi, Zhao

The output voltage is 0.9V and the adjustment voltage is up to the second decimal place.

Thank you.

0 Zhao Ma over 8 years ago in reply to BJ Han

TI__Genius 15135 points

Hi, Han

I see.

But I want to know below information:

What is the frequency range and high-level voltage of PWM module output?

Power management

Power management forum

TPS65261-1: I have a question about implementing the TPS65261-1 function.