TPS61196: Sequencing

Fandy

Expert 2285 points

Part Number: TPS61196

Hello

If EN is high and PWM signal comes before VIN , is it ok for TPS61196 ?

over 6 years ago

0 Sean Zhou over 6 years ago

TI__Mastermind 22745 points

Hi Fandy,
Sure, TPS611696 has the internal soft start control even PWM signal comes before the VIN signal. You can refer to section 7.3.5 for detail description.
Regards
Sean

0 Fandy over 6 years ago in reply to Sean Zhou

Expert 2285 points

Hi Sean
thanks, so actually there is no sequence demand of power /control signal ?

0 Sean Zhou over 6 years ago in reply to Fandy

TI__Mastermind 22745 points

Hi Fandy,
Technically saying yes, but we do recommend to use the sequence as shown in figure 20 in datasheet. thanks.
Regards
Sean

0 Fandy over 6 years ago in reply to Sean Zhou

Expert 2285 points

Hi Sean

Did it have any demands on duration time of EN signal ? such as min time of t6

0 Sean Zhou over 6 years ago in reply to Fandy

TI__Mastermind 22745 points

Hi Fandy,
It's that mean you want to toggle the EN pin? We don't have such kind of spec. Because you need to consider the soft start time , you can refer to figure 20 and figure 21 on datasheet.
Regards
Sean

0 Fandy over 6 years ago in reply to Sean Zhou

Expert 2285 points

Hi Sean
how about power-off stage？
and If re-toggle the EN during the last soft-start havn't been finished, is there any adverse factor for TPS61196 ?

0 Sean Zhou over 6 years ago in reply to Fandy

TI__Mastermind 22745 points

Hi Fandy,
Can you tell me why you need those kinds of operation? I can predict those kinds of phenomenon since it's the abnormal operation.
Reagrds
Sean

0 Kenneth Du over 6 years ago in reply to Sean Zhou

TI__Genius 14295 points

I'll close this thread due to inactivity and if you have more questions please reply to it directly and it will open again.

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TPS61196: Sequencing