LM3880: Incomplete Sequence Operation

user5023572

Prodigy 70 points

Part Number: LM3880

Hi,

I'm a user of LM3880MF-1AA.

I have two questions about "7.3.2 Incomplete Sequence Operation" in the datasheet.

Q1.

In Figure 7-3. Incomplete Power-Up Sequence,

what are the maximum and minimum values for approximately 120ms？

Q2.

If the enable signal is de-asserted for a period of about 120ms, when does the power-down sequence start?

over 4 years ago

0 yihe over 4 years ago

TI__Guru 63770 points

Hello

1. we are checking whether these number are available.

2. For LM3880MF-1AA, the the power down stars 10ms after the enable is de-asserted. with 120ms period, it gives enough time for the device to complete the power down sequence.

Regards

Yihe.

0 yihe over 4 years ago in reply to yihe

TI__Guru 63770 points

Hello

Since the 120ms is from the same clock/timer as other timing parameters, it will follow the same variations defined in the data sheet. for LM3880MF-1AA, it is 15%.

Regards

Yihe

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LM3880: Incomplete Sequence Operation