Part Number: LM3880 Hello,
We made about 80 boards, using the LM3880 to control the power-on sequence. The circuit of the LM3880 is as follows. The input power of the board is VCC_5V.
One board out of these boards cannot be powered up in the chassis…
Part Number: LM3880
Team,
I have a design question and I hope you can help me with an answer.
I’m using LM3880 to induce a 10ms analog delay on a DC/DC converters.
Can I tie (2) LTM8074 run pins to one flag output ? Ie can I ties flag 1 to both…
Part Number: LM3880 I am looking at using the LM3880 to do power sequencing for my FPGA based design. What is the state of the flag outputs as the VCC goes below 2.7V (assuming the EN is low and all the flag outputs have all been pulled low prior to reaching…
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…
Part Number: LM3880 Hi
I have a problem about remaining voltage EN pin.
Please see attached figure about my system.
I would like to become as possible as 0V on EN line.
But I didn’t found solution on datasheet.
I have some questions.
(1) Could…
Part Number: LM3880 Dear Sirs,
As customer design, the major power source is USB 5V, and no any control circuit for EN pin.
While 5V turning off, the EN will be off almost at the same time, and that all FALG outputs will be off together.
Any circuit…
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…
Part Number: LM3880 Hi,
I need to sequence more than 6 rails in my system design and I am thinking to use LM3880DBV sequencer to sequence.
How can i sequence 9 rails for ex using LM3880DBV? Do you have any application circuit?
Also in webbench if…
Part Number: LM3880 Hello,
We made about 80 boards, using the LM3880 to control the power-on sequence. All boards work properly at room temperature（25°C）. But at -40 ° C, 3 out of these boards cannot be powered up. We find that the LM3880 on these three…
Part Number: LM3880 P/N: LM3880MFX-1AB/NOPB
I am creating a delivery specification for this part number. In the Qualification Summary, the results of ESD- CDM are described as "See data sheet". However, the datasheet does not show the results of ESD…
