TPS92692-Q1: Internal Characteristics

kaz hn

Prodigy 120 points

Part Number: TPS92692-Q1

Tool/software:

Hi teams,

i have 2 questions,

[1] What is the mean "PWM pulldown resistamce"?

Internal pulldown resister? or External recommended resistance?

[2] What are the resistance values of the parts highlighted in red in the functional block diagram below?

Thanks.

over 1 year ago

0 Daniel Louis over 1 year ago

TI__Expert 5790 points

Hi Kan,

1. the PWM pull-down resistance value is internal to the IC

2. The resistance values are grouped into the gain value of 14. Is there a specific reason you need to know these values?

0 kaz hn over 1 year ago in reply to Daniel Louis

Prodigy 120 points

Hi Louis,

I am concerned about current consumption (with peripheral circuits) in IC standby state.
Since CSP and CSN pins receive voltage from peripheral circuits even during IC standby, I thought this pin might be a factor.

Best regards,

Kaz

0 Daniel Louis over 1 year ago in reply to kaz hn

TI__Expert 5790 points

Hi hn,

while CSP asnd CSN pins do receive voltage, they are tied to the current sense amplifier which has similar properties to an op amp in the sense that it has extremely high input impedance and will dissipate a very negligible amount of power

0 kaz hn over 1 year ago in reply to Daniel Louis

Prodigy 120 points

Hi Louis,

I understand about CSP and CSN.

What about the resistors in the second stage of the current sensing amplifier?

Best regards,

Kaz

0 Daniel Louis over 1 year ago in reply to kaz hn

TI__Expert 5790 points

My answer is the same as above. What is the specific reason you need these values? I've explained that the resistors will barely pull any current whatsoever

0 kaz hn over 1 year ago in reply to Daniel Louis

Prodigy 120 points

Thank you for your response.

The first thing I am concerned about is whether the current flows or not. If it does, what is its value?

I got the answer again and I understand.

Thanks,

Kaz

Power management

Power management forum

TPS92692-Q1: Internal Characteristics