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# TPA3110D2-Q1: Vp and PLIMIT

Dear all,

Could you teach me the individual difference and tolerance over temperature (-40~85C) of Vp?

**Please consider PLIMIT has no tolerance

You mentioned 'Vp=4*PLIMIT' at data sheet.

However, is this '4 times' always the same value between devices or temperature?

We think that this value changes to '4.0xx' or '3.9xx' between some situation.

If our think is wrong, what does this '4 times' derive from?

In addition, could you teach me how tolerance should we think if you don't have clear answer?

Best regards,

• Yamamoto-san,

This is specified in the datasheet; it is the last line item on page 5. For a VPLIMIT = 2V, the output voltage maximum can be between 6.75V and 8.75V. If you turn that into a gain, the gain can be between 3.375 and 4.375.

Thanks,

-Clancy

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