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Showing 31 results View by: Thread Post Sort by
  • RE: LM3880-Q1: LM3880-Q1 Cascading circuit

    Toshio Ushikubo
    Toshio Ushikubo
    Hello Yihe-san, Thank you for your answer I understand the Incomplete Sequence Operation for one LM3880-Q1. Could you answer following question? Q1: I believe that each output (A to F) behave like “Unexpected FLAG Output “ of Figure 1 and 2…
    • over 8 years ago
    • Power management
    • Power management forum
  • Answered
  • LM3880-Q1: recommended pad layout

    Ryuji
    Ryuji
    Resolved
    Part Number: LM3880-Q1 Hello, Could you please let me know the recommended pad layout of LM3880-Q1? I got the bxl file and install the ultra librarian. Then open the file, there is no actual size information (mm, inch or etc..) I appreciate it if…
    • Resolved
    • over 8 years ago
    • Power management
    • Power management forum
  • Answered
  • LM3880-Q1: 120ms period

    K.Hamamoto
    K.Hamamoto
    Resolved
    Part Number: LM3880-Q1 Hi On the datasheet, it is mentioned that there are 120ms period at incomplete power-down sequence. 1. What is happen if EN is asserted at that 120ms period? Do this device accept the EN assertion at that 120ms period? 2…
    • Resolved
    • over 8 years ago
    • Power management
    • Power management forum
  • Answered
  • LM3880-Q1: min pulse of EN

    K.Hamamoto
    K.Hamamoto
    Resolved
    Part Number: LM3880-Q1 Hi Is there any limitation of EN pulse width? The FLAG does not response if the small pulse of EN signal(High or Low) which is smaller than delay time is input. Regards, Koji Hamamoto
    • Resolved
    • over 8 years ago
    • Power management
    • Power management forum
  • LM3880-Q1: Abs Max of FALG pin

    K.Hamamoto
    K.Hamamoto
    TI Thinks Resolved
    Part Number: LM3880-Q1 Hi I have a question about the pull-up voltage of FLAGx pin. At the datasheet, the recommend voltage of FLAGx pin is -0.3V~VCC+0.3V. However the abs max is -0.3V~6.0V. Is it possible the FLAGx pin is pulled up to 5V when the…
    • over 8 years ago
    • Power management
    • Power management forum
  • Answered
  • LM3880-Q1: start-up sequence of EN and VCC

    K.Hamamoto
    K.Hamamoto
    Resolved
    Part Number: LM3880-Q1 Other Parts Discussed in Thread: LM3880 Hi I have a question about start up sequence. Should we turn on the EN pin after VCC rise up? If it so, how much delay should we set on EN pin after VCC rise up? At our configuration…
    • Resolved
    • over 8 years ago
    • Power management
    • Power management forum
  • AM62A7: Custom board unable to connect through USB or UART

    Josh Fox
    Josh Fox
    TI Thinks Resolved
    Part Number: AM62A7 Other Parts Discussed in Thread: LM3880 , AM62D-Q1 , AM62L Tool/software: Hey TI team, We have designed a custom board with AM62A7 using the SK as a template. The board has the same DDR as the SK. The boot modes are selected as…
    • 3 months ago
    • Processors
    • Processors forum
  • Answered
  • RE: LM3880: Power Sequencer for Spartan 7

    Mathieu Chante
    Mathieu Chante
    Resolved
    Hello Travis, Thanks for your quick reply. Here are my answers: 1) Yes, the input current on EN pin is not specified in LM3880 datasheet when this pin is driven high (a pity). 2) Knowing the I_CLK_EN draws no current at all, I just measured the current…
    • over 2 years ago
    • Power management
    • Power management forum
  • DP83TG720S-Q1: power management module for sleep mode

    Marvn Arcangel
    Marvn Arcangel
    TI Thinks Resolved
    Part Number: DP83TG720S-Q1 Other Parts Discussed in Thread: LM3880 , TPS22993 Hi Team, Can you suggest a power management module that would allow the user to enter/exit the sleep mode feature of the phy ethernet DP83TG720S-Q1? Can you confirm the…
    • over 2 years ago
    • Interface
    • Interface forum
  • Answered
  • TLV320DAC3101: Power Rails and Startup Sequence

    Jörg Pressel
    Jörg Pressel
    Resolved
    Part Number: TLV320DAC3101 Other Parts Discussed in Thread: LM3880 Tool/software: Hi there, we're planning to use the TLV320DAC3101 in a home entertainment device. To get a better understanding of powering and power up sequence we're in progress creating…
    • Resolved
    • over 1 year ago
    • Audio
    • Audio forum
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