TPS54678: Dead time of TPS54678

Manu Chang

Part Number: TPS54678

Tool/software:

Hi expert,

Customers want to know the dead time between the turn on of HS and turn on of LS in TPS54678. Can you help check it？There is a 40ns in the equation of datasheet, can I take this as the typical value of dead time?

BR,
Manu

3 months ago

0 Given Ding 3 months ago

TI__Genius 10495 points

Hi Team,

also want to check if this deadtime is fixed or affected by external component/working condition? Thanks.

BRs

Given

0 Febin 3 months ago in reply to Given Ding

TI__Mastermind 26380 points

Hello Given,

40ns is a typical value.

Regards,

Febin

0 Given Ding 3 months ago in reply to Febin

TI__Genius 10495 points

Hi Febin,

Thanks for your reply. how about the question “ this deadtime is fixed or affected by external component/working condition” ? Thanks

BRs

Given

0 Febin 3 months ago in reply to Given Ding

TI__Mastermind 26380 points

Hello Given,

Yes, application conditions have an impact on dead time.

Regards,

Febin

0 Given Ding 3 months ago in reply to Febin

TI__Genius 10495 points

Hi Febin，

Thanks for your reply.

how application affect deadtime，could you share the factors such as inductor, Vin or something else?

BRs

Given

0 Febin 3 months ago in reply to Given Ding

TI__Mastermind 26380 points

Hello Given,

Vin and Load current can have an impact on dead time.

Regards,

Febin

Data converters

Data converters forum

TPS54678: Dead time of TPS54678