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Showing 227 results View by: Thread Post Sort by
    Answered
  • LM3880: LM3880 power off sequence

    t morikawa
    t morikawa
    Resolved
    Part Number: LM3880 Hi team, Could you tell me about the operation to turn off the power while the IC is operating. In the following circuit diagram, what kind of motion does FLAG move when VCC is slowly set to 0 V? First, FLAG 3 is turned off,…
    • Resolved
    • over 7 years ago
    • Power management
    • Power management forum
  • LM3880: FLAG delay time specification problem

    Paul Yeh
    Paul Yeh
    TI Thinks Resolved
    Part Number: LM3880 Other Parts Discussed in Thread: LM3881 Hi Team, The figure shows LM3880MF-1AE is 30 ms delay. But table 4 shows 30ms is AB, not AE. Could you help to check the waveform shows wrong ? The other questions is we would like to…
    • over 4 years ago
    • Power management
    • Power management forum
  • LM3880: END OF LIFE DETAILS

    ARUN S PANICKER
    ARUN S PANICKER
    TI Thinks Resolved
    Part Number: LM3880 Dear Sir, We are planning to use LM3880MF-1AA/NOPB in our existing design. In view of the above we want to know the end of life of the product. Regards, Arun P
    • over 5 years ago
    • Power management
    • Power management forum
  • LM3880: Flag Timing Delays Adjustable?

    Zachary Davis1
    Zachary Davis1
    TI Thinks Resolved
    Part Number: LM3880 Hello, Does the LM3880 have the ability to change the delays between flag events? I see the datasheet, on Table 1, says the flag timing delay is set at 30 ms. Is this time adjustable at all (without having the factory have to re…
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: LM3880: Shutdown current

    Dan1
    Dan1
    Resolved
    Hi Yihe, The total current consumed by LM3880 while powered, but when the enable pin is unasserted. We are trying to optimise battery life. Kind regards,
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: LM3880-Q1: About the sequence of LM3880-Q1(Use LM3880-Q1 in cascade)

    yihe
    yihe
    Resolved
    EN of LM3880 provides glitch free operation. so it is up to the duration of the 2nd high pulse after EN is de-asserted. In your char, you list the duration as td or more which will not give a unique answer. if the duration is less than 2xtd + 120ms…
    • over 7 years ago
    • Power management
    • Power management forum
  • LM3880: Does the LM3880 need a decoupling capacitor on the VCC pin?

    Chaim Palman
    Chaim Palman
    TI Thinks Resolved
    Part Number: LM3880 Does the LM3880 need a decoupling capacitor on the VCC pin?
    • over 7 years ago
    • Power management
    • Power management forum
  • LM3880: LM3880

    user5020677
    user5020677
    Part Number: LM3880 Hello, I am currently having an issue with the LM3880 Spice model. The simulation give an error when I attempt to model the behavior of the power supply (VCC) switching off. I've pasted some images below to help illustrate my problem…
    • over 8 years ago
    • Power management
    • Power management forum
  • Answered
  • LM3880: About "8.3 Do's and Don'ts"

    Tsukui Yusuke
    Tsukui Yusuke
    Resolved
    Part Number: LM3880 Hi, Could you tell me about "Datasheet page 15 8.3 Do's and Don'ts" ? 1.What happens inside the device when VCC and EN are connected, causing undefined operation?  Please give details of the problem. 2.Customer has connected Vcc…
    • Resolved
    • over 5 years ago
    • Power management
    • Power management forum
  • LM3880: LM3880 power sequence

    Frank Xiao
    Frank Xiao
    TI Thinks Resolved
    Part Number: LM3880 Hi team, My customer is evaluating the LM3880 now, for LM3880, if we turn off VCC first, what will happen about flag 1,2,3? Thanks.
    • over 8 years ago
    • Power management
    • Power management forum
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