TI E2E support forums
TI E2E support forums
  • User
  • Site
  • Search
  • User
  • E2E™ design support >
  • Forums
    • Amplifiers
    • API solutions
    • Audio
    • Clock & timing
    • Data converters
    • DLP® products
    • Interface
    • Isolation
    • Logic
    • Microcontrollers
    • Motor drivers
    • Power management
    • Processors
    • RF & microwave
    • Sensors
    • Site support
    • Switches & multiplexers
    • Tools
    • Wireless connectivity
    • Archived forums
    • Archived groups
  • Technical articles
  • TI training
    • Tech days
    • Online training
    • Live events
    • Power Supply Design Seminar
  • Getting started
  • 简体中文
  • More
  • Cancel
Power management

Power management

Power management forum

  • Mentions
  • Tags
  • More
  • Cancel
  • Ask a new question
  • Ask a new question
  • Cancel
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
<>

View FAQ threads
  • Tags
  • RSS
  • More
  • Cancel
  • Answered

    LM5149: LM5149 99% Duty 0 Locked

    493 views
    6 replies
    Latest over 1 year ago
    by Noah Li
  • Answered

    TPS1HC100-Q1: Reverse battery protection when sharing GND resistor and diode between 2 devices 0 Locked

    248 views
    1 reply
    Latest over 1 year ago
    by Timothy Logan
  • Suggested Answer

    TPS65313-Q1: Is IO supply voltage monitoring (VIO_OV) latent fault? 0 Locked

    216 views
    1 reply
    Latest over 1 year ago
    by Niko Alatalo
  • Answered

    TPS62826: SN62826/7 0 Locked

    281 views
    2 replies
    Latest over 1 year ago
    by Moheddin Pasha Shaik
  • Answered

    LM7481: Voltage spikes causing board issues 0 Locked

    474 views
    8 replies
    Latest over 1 year ago
    by Andrew Rich
  • Answered

    TPS62A02A: EMI Data 0 Locked

    430 views
    6 replies
    Latest over 1 year ago
    by Varun John
  • Suggested Answer

    TUSB1044: Can TUSB1044 redrive DP signal? 0 Locked

    216 views
    1 reply
    Latest over 1 year ago
    by David (ASIC) Liu
  • Suggested Answer

    TPS62816-Q1: SN part Schematic review 0 Locked

    153 views
    3 replies
    Latest over 1 year ago
    by Sneha
  • Answered

    TPS23731: Is TPS23731 the best device for LTC4278 replacement? 0 Locked

    1034 views
    32 replies
    Latest over 1 year ago
    by Kazuya Nakai59
  • Answered

    MC34063A: Calculation Inductor and capacitors (MC34063ADR) 0 Locked

    428 views
    1 reply
    Latest over 1 year ago
    by Brigitte
  • Suggested Answer

    LP5036EVM: LP5036EVM with ESP32 LED don't work 0 Locked

    519 views
    6 replies
    Latest over 1 year ago
    by Jared Zhou
  • Answered

    LM2991: Absolute maximum of Vout 0 Locked

    332 views
    9 replies
    Latest over 1 year ago
    by Akihisa Tamazaki
  • Answered

    BQ25720: The BQ25720EVM board does not charge the battery without system load (when VSYSMIN was set higher than VBAT. ) 0 Locked

    458 views
    9 replies
    Latest over 1 year ago
    by Sven Zhao
  • Suggested Answer

    TLV62568A: PG pin sink current limit 0 Locked

    302 views
    5 replies
    Latest over 1 year ago
    by Josef Marsmann
  • Answered

    TPSM84209: About the shape of 8pin (grand pin) 0 Locked

    231 views
    1 reply
    Latest over 1 year ago
    by Gui He
  • Suggested Answer

    LP3943: Want to Blink LEDs from u-boot 0 Locked

    656 views
    5 replies
    Latest over 1 year ago
    by Jared Zhou
  • Not Answered

    TPS929160-Q1: FAIL-SAFE mode issue 0 Locked

    618 views
    15 replies
    Latest over 1 year ago
    by Xiaoguang
  • Suggested Answer

    LP5811: Functional Modes 0 Locked

    261 views
    1 reply
    Latest over 1 year ago
    by Jared Zhou
  • Not Answered

    LMG2100R044: PGND and AGND are connected directly. 0 Locked

    320 views
    1 reply
    Latest over 1 year ago
    by Madhur Wagle
  • Not Answered

    TPS54140A: TPS54140ADGQ 0 Locked

    178 views
    1 reply
    Latest over 1 year ago
    by David Baba
<>