LM36922 schematic

daniel

Genius 5095 points

Hi,

Is it ok to add a parallel capacitor on OUT pin to LED1/2? The capacitors are in LCM, so we have this question.

Thanks

over 8 years ago

0 Randy Dahl over 8 years ago

TI__Intellectual 2090 points

Hi Daniel

As long as the capacitance is 100 pF or less it is okay.

Best regards,
Randy

0 daniel over 8 years ago in reply to Randy Dahl

Genius 5095 points

Dear Randy,

Thanks for your reply.
Are there any risk if the capacitors are 4.9nF...? The capacitors will affect response time only? Or it will affect other electrical characteristics?
Thanks

0 Randy Dahl over 8 years ago in reply to daniel

TI__Intellectual 2090 points

Hi Daniel

These capacitors will affect the boost response and could result in large ripple voltage during steady state conditions.
Under a step change condition the boost output could become unstable and resulting in a damped oscillation of the output voltage.

Best regards,
Randy

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LM36922 schematic