Power management

Power management forum

State TI Thinks Resolved
Locked Locked
Replies 9 replies
Answers 5 answers
Subscribers 63 subscribers
Views 371 views
Users 0 members are here

Support feedback

Options

Options

Related

TPS55165-Q1: Power dissipation and internal FET parameters

suk sungil

Prodigy 55 points

Part Number: TPS55165-Q1

hello.

I have questions about the TPS55165-Q1.

To calculate the power dissipation of TPS55165, i want to get the internal MOSFET parameters.(Rising time / falling time / Cg / Gate overdrive voltage)

if MOSFET have body diode, i want to get the body diode parameters(forward voltage)

can i get these parameters?(please include test condition.)

If I do not get these parameters, can i get another TPS55165-Q1 power dissipation method? (such as the formula)

thanks.

over 6 years ago

0 Helen chen over 6 years ago

TI__Mastermind 40080 points

Dear Sir,

This part is transferred to our team from another PL. We didn't have much knowledge of it. So we need some time to test it or simulate it. It maybe a long time. Please wait in patient.

By the way, what is your Vin range, Vo , Io. We can simulate your typical condition first.

0 suk sungil over 6 years ago in reply to Helen chen

Prodigy 55 points

hello.

Our operation conditions are as follows.

- Input voltage(Vin) : 5.3 ~ 26.5V

- Output Voltage : 5V(4.9 ~ 5.1V)

- Output Current : 0.8A(Vin < 6V), 1A(Vin > 6V)

We hope to hear your answer you as soon as possible.

thanks.

0 Helen chen over 6 years ago in reply to suk sungil

TI__Mastermind 40080 points

Thanks for the update!

I'll submit the request at Vin=5.3V, Vin=10V, Vin=12V, Vin=14V, Vin=26.5V condition. is it OK for you?

0 suk sungil over 6 years ago in reply to Helen chen

Prodigy 55 points

hello.

Ok, it's good.

also, can i get the load EEPROM time and Deglitch time calculation method?

in the power up time test, power up time was always 12ms even for many times.

so, Load EEPROM time and Deglitch time calculation methods are needed.

thanks.

0 Helen chen over 6 years ago in reply to suk sungil

TI__Mastermind 40080 points

Hi Sir,

Yes, the typical power up time is around 12ms and its hard to reduce it. Why do you care about this duration?

0 suk sungil over 6 years ago in reply to Helen chen

Prodigy 55 points

hello.

I requested the power up time to check it.

if so, what is the time of EEPROM load?

i want to get the parameters of the FET and body diode.

When will I know it?

thanks.

0 Helen chen over 6 years ago in reply to suk sungil

TI__Mastermind 40080 points

Dear Sir,

Please write an email to me, as the question is quite in detail. Let's discuss offline.

0 suk sungil over 6 years ago in reply to Helen chen

Prodigy 55 points

hello.

Ok, please leave your e-mail to me.
I will send you question about TPS55165-Q1

thanks.

0 Helen chen over 6 years ago in reply to suk sungil

TI__Mastermind 40080 points

I send a private message to you, please accept it.