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Showing 147 results View by: Thread Post Sort by
  • LM5149-Q1: AVG?AC model of LM5149 in SIMPLIS

    Ryan Rah
    Ryan Rah
    TI Thinks Resolved
    Part Number: LM5149-Q1 Other Parts Discussed in Thread: LM5148 , LM5149 Tool/software: Any SIMPLIS simulation model of LM5148 or LM5149 for AC/AVG analysis?
    • 29 days ago
    • Power management
    • Power management forum
  • Answered
  • LM5149-Q1:LM5149-Q1のPspice

    Alice
    Alice
    Resolved
    Part Number: LM5149-Q1 Tool/software: 提供されているPspiceを使って入力電圧20/24/30Vでの出力電圧を確認しています。 ただし一時的に12.5Vとなるようなステップ応答を追加しています。 このステップ応答のため、AEFとπ型フィルタをなくすしかないと考えています。 ・ AEFとπ型フィルタ有(VIN=30→12.5V→30V) まずこの見解はあってますでしょうか? また、AEFとπ型フィルタをなくして、初期電圧を20…
    • Resolved
    • 2 months ago
    • Power management
    • Power management forum
  • Answered
  • LM5149-Q1EVM-400: LM5149-Q1EVM-400

    Audrius Ramaskevicius
    Audrius Ramaskevicius
    Resolved
    Part Number: LM5149-Q1EVM-400 Hello, Devi kit: LM5149-Q1EVM-400 changed Top and Bottom mosfets I have startup issue with no load: Vin 34V Vout should be 12V, but than turn on power supply Output is 4.96V Iload 0A, if I connect 90mA load to output, it become…
    • Resolved
    • 2 months ago
    • Power management
    • Power management forum
  • Answered
  • RE: LM5149:   LM5149:LM5149 -40℃

    Timothy Hegarty
    Timothy Hegarty
    Resolved
    Oh good. For the layout, go with a solid unbroken GND plane on layer 2 directly below the powr stage (see the EVM as a reference). Also, an AGND island is useful as well. Copy the EVM layout much as possible here. Regards, Tim
    • 3 months ago
    • Power management
    • Power management forum
  • Answered
  • LM5149-Q1: Sometimes the output is not output correctly.

    R.Fukunaga
    R.Fukunaga
    Resolved
    Part Number: LM5149-Q1 Tool/software: Hi all, My customer considers to use LM5149QRGYRQ1 with the following configuration. Sometimes the output is not output. The waveform is below. VIN(VBAT)=28V Vout=7V Output Not output In many cases, this phenomenon…
    • Resolved
    • 8 days ago
    • Power management
    • Power management forum
  • LM5149-Q1: Please review the schematic

    Chase Jeong
    Chase Jeong
    Part Number: LM5149-Q1 Tool/software: Dear TI experts, My customer drew 1st schematic using LM5149-Q1. Could you review the schematic below? Best regards, Chase
    • 1 month ago
    • Power management
    • Power management forum
  • Answered
  • LM5149-Q1: Active EMI Filter vs DRSS

    Shunsuke Yamamoto
    Shunsuke Yamamoto
    Resolved
    Part Number: LM5149-Q1 Tool/software: Hi team, Does the noise suppression of DRSS exceed AEF(Active EMI Filter)? Which one is more effective for EMI countermeasures? Best regards, Shunsuke Yamamoto
    • Resolved
    • 28 days ago
    • Power management
    • Power management forum
  • LM5149: LM5149 PSpice Simulation Model not working correctly.

    Michael McAdam
    Michael McAdam
    TI Thinks Resolved
    Part Number: LM5149 Tool/software: Hello everyone, I’m trying to simulate the LM5149 in PSpice for TI 2024. I’ve downloaded the LM5149-Q1 PSPICE Transient Model from the TI website and followed the provided steps. After loading the file,…
    • 3 months ago
    • Power management
    • Power management forum
  • LM5149-Q1: lm5149

    Daniel Teger
    Daniel Teger
    TI Thinks Resolved
    Part Number: LM5149-Q1 Other Parts Discussed in Thread: LM5149 , , LM25148-Q1 Tool/software: In a forum post on a related topic, Orlando Murray stated the the PSPICE model for the LM5149 does not support simulating this part in dual-phase mode. Do you…
    • 4 months ago
    • Power management
    • Power management forum
  • LM5149-Q1: Standby current when load is 100uA

    Grey Guo
    Grey Guo
    TI Thinks Resolved
    Part Number: LM5149-Q1 Other Parts Discussed in Thread: LM5149 Tool/software: Hi team, My customer selects LM5149-Q1 in their 48V ACU project. They want to know when Vin=48V, Vout=14V, Load=100uA, what's the total current consumed by LM5149-Q1 itself…
    • 1 month ago
    • Power management
    • Power management forum
>

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