LM3886: Output Current Limit Distribution Function or Similar

Matt Karaerik

Part Number: LM3886

Hello,

I want to learn the output current limit distribution function as it states that it is specified to AOQL. The spread is high, so want to learn how this is calculated.

Regards,

over 5 years ago

0 Dylan Yao over 5 years ago

TI__Genius 11970 points

Matt,

The limit value means the max/min value we set for pass or no-pass during out factory test. So that means for outgoing devices the minimum output current limit is 7A.

Hope this can answer your quesiton.

Dylan

0 Matt Karaerik over 5 years ago in reply to Dylan Yao

Intellectual 360 points

Hi Dylan, sorry for the late response, thank you for the answer but do you have any kind of a probability density function of how this changes from batch to batch or a likelihood function?

0 Yanming Gong over 5 years ago in reply to Matt Karaerik

TI__Mastermind 20000 points

Hi Matt,

This current limit function is for speaker protect. When output current is over the threshold, device will reduce to current into threshold.

Regards,

Derek

0 Matt Karaerik over 5 years ago in reply to Yanming Gong

Intellectual 360 points

Thank you Derek, so seems like we need to take it 7A, there is no variance or mean values for the distribution.

Regards,

0 Yanming Gong over 5 years ago in reply to Matt Karaerik

TI__Mastermind 20000 points

Hi Matt,

Yes, 7A is minimum value.

Regards,

Derek

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LM3886: Output Current Limit Distribution Function or Similar