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Power management

Power management

Power management forum

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Texas Instruments (TI) Power management support forum is an extensive online knowledge base where millions of technical questions and solutions are available 24/7. You can search power management IC content or ask technical support questions on everything from linear and DC/DC switching regulators to battery management and LED drivers. Find the right solution for your circuit design challenges by using our TI E2E™ support forums that are supported by thousands of contributing TI experts.
Frequent questions
  • [FAQ] Where is the latest version of the TI Fusion GUI?

    Sam
    Sam
    Make sure to use the latest version of the TI Fusion Designer GUI ( Fusion Digital Power Designer ) . TI also provides an "Alert Me" feature to notify the registered users when a new GUI version is available to download. For more FAQ please check…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Why are the fault shutdown slave rails not off immediately? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 The faulted rail is configurable to either shutdown immediate or soft off. This is set at the fault…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Why are the rails off immediately instead of following the sequencing settings (dependencies, TOFF delay) when toggling the CONTROL? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 There is a CONTROL signal turnoff configuration: Soft Off (with Sequencing) or Immediately Off.…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Can the logical GPO (LGPO) output be used to turn on and off the power rail? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Yes, but it is not recommended to do so. A rail EN pin has many features that logic GPO pins do…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Why does the turnon and turnoff sequence or re-sequence hang or take very long to complete? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 If the sequence hangs, check at which step the sequence is stuck, then find the cause. For example…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Why does the time interval between two re-sequences longer than the value set in "time between re-sequences"? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 The "time between re-sequences" only starts to count when all rails are below their POWER_GOOD_OFF…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Why do rails not re-sequence after restart is exhausted? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Re-sequence cannot start until all re-sequencing rails are below the POWER_GOOD_OFF threshold. Make…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] When is the re-sequencing count reset? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 The re-sequencing count is reset when all re-sequencing rails stay above the POWER_GOOD threshold…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] When is the retry count reset? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 The retry count is reset whenever the rail stays above the POWER_GOOD threshold for a TON_MAX_FAULT_LIMIT…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] How can users re-sequence all rail after they are off due to fault response when the rails’ ON_OFF_CONFIG are set to AUTO mode? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 For rails that are off due to fault response and ON_OFF_CONFIG set to AUTO, the only way to power…
    • over 3 years ago
    • Power management
    • Power management forum
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View FAQ threads
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  • Not Answered

    TPS25830A-Q1: Other Fault Scenario 0

    8 views
    0 replies
    Started 12 hours ago
    by Jayenthiran Rajendran
  • Suggested Answer

    LMR43610-Q1: LMR43610RS3QRPERQ1 0

    23 views
    2 replies
    Latest 13 hours ago
    by Pramanik Patel
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    LMR43620-Q1: LMR43620RS5QRPERQ1 0

    16 views
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    Latest 13 hours ago
    by Pramanik Patel
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    BQ2969T: How to configure CTL and REG pin if unuse? 0

    11 views
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    Started 13 hours ago
    by Ryker She
  • Answered

    TPS2663: Maximum number of reflow cycles 0

    33 views
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    Latest 13 hours ago
    by shirakata.yuto
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    29 views
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    Latest 13 hours ago
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    35 views
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    Latest 13 hours ago
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    21 views
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  • Suggested Answer

    LP5812: Offline Support Request 0

    34 views
    2 replies
    Latest 15 hours ago
    by Felix Wang
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    TLV62130: Request for TLV62130 schematic & PCB review (IC dead phenomenon) 0

    95 views
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    TPS922054: Tested load output cannot drive 4A 0

    88 views
    7 replies
    Latest 15 hours ago
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    TPS7A85: TPS7A85 design mismatches between webench and datasheet 0

    41 views
    3 replies
    Latest 15 hours ago
    by Lu Z
  • Not Answered

    BQ25638: OTG mode automatically exits with the EN_OTG bit being shut off with 1.4A load or less. 0

    25 views
    0 replies
    Started 15 hours ago
    by Woosik Lee
  • Not Answered

    TPS922055: TPS922055 calculation tool Inductor Values 0

    26 views
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    Latest 15 hours ago
    by Lucia Gao
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    TPS23750: Inrush Limit 0

    7 views
    0 replies
    Started 16 hours ago
    by Shuji Ishiwata
  • Not Answered

    BQ27Z746: protector configuration is modified in protector hardware registers after device has already been programming. 0

    24 views
    2 replies
    Latest 16 hours ago
    by Amber Si
  • Not Answered

    UCC2897A: Requesting a schematic for the PMP4844 0

    11 views
    0 replies
    Started 16 hours ago
    by Grady Lee
  • Not Answered

    LM706A0: Can the LM706A0RRXR operate properly on a PCB designed for the LM70660RRXR ? 0

    14 views
    0 replies
    Started 16 hours ago
    by Hiroyuki
  • Answered

    TPSM8D6B24: [TPSM8D6B24] Interconnection for AGND_A and AGND_B 0

    97 views
    3 replies
    Latest 16 hours ago
    by Jerry Shen
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