LM3880: Glitch occurs when the LM3880 power is turned on.

user6236094

Part Number: LM3880

We have configured the LM3880 with the following circuit.

Please tell me the following points.

【QUESTUON1】

Does glitch momentarily occur at the FLAG pin when VCC power is turned on?

Is the cause because FLAG is pulled up externally by Nch FET?

0 Qian Chen over 5 years ago

Hello,

The datasheet figure 9 shows FLAG voltage will rise up to around 0.65V when VCC voltage is below 0.9V.

This is because the internal circuit is not fully controlled when VCC voltage is below 0.9V.

Thanks

Qian

0 user6236094 over 5 years ago in reply to Qian Chen

Thank you very much.
Regarding the above, I understand.

thanks

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