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] Why is there leakage current on pins when the UCD90xxx is not powered up?

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 The UCD90xxx device has an internal ESD diode to protect on all IO pins and MON pins. When the UCD90xxx…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Is an RC filter needed for a V33A rail? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 V33A supplies power to voltage reference and ADC blocks inside the device. A large ripple on V33A…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Are pulldown resistors needed on EN pins? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Pulldown resistors on EN pins are needed in some situations. When the UCD90xxx device is in reset…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] What are the states of IO pins when the UCD90xxx is under reset? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90320U , UCD90320 , UCD90240 , UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90120 , UCD9090A , UCD90124 , UCD90124A All IO pins of the UCD90320U, UCD90320, and UCD90240 devices are Hi-Z state. For the rest of the…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Are the decoupling capacitors needed on MON pins? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Decoupling capacitors on MON pins are recommended. MON pins are ADC channels. There is no internal…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Can the RESET pin be used to sequence off rails? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 No. Unlike analog devices, RESET pin of the UCD90xxx resets its digital core abruptly. All GPIO…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Is the PMBus connector for the Fusion GUI still required if a PMBus host is already available on the board? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Although it is optional, it is always recommended to have a PMBus connector to connect the Fusion…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Are there any application notes for margining function? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Yes. TI has provided the following application notes to design voltage margining: • Design Voltage…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] When does the UCD90xxx start rail margining?

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 The UCD90xxx only starts the margining when the desired rails reach its POWER_GOOD threshold and…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Does the UCD90xxx family support voltage margining?

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90240 , UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Yes. The UCD90xxx family employs a PWM method to do voltage margining. Compared to the DAC method…
    • over 3 years ago
    • Power management
    • Power management forum
<>

View FAQ threads
  • Tags
  • RSS
  • More
  • Cancel
  • Suggested Answer

    BQ76930: The REGSRC pin of BQ76930 has voltage input, but the REGOUT pin does not have 3.3V output? What conditions must be met for output? Is it possible to achieve forced output, which always has 3.3V output? 0 Locked

    381 views
    1 reply
    Latest over 5 years ago
    by WM5295
  • Suggested Answer

    Error 0 Locked

    102 views
    1 reply
    Latest over 5 years ago
    by Ed Walker
  • Answered

    TPS4H000-Q1: Current limit function 0 Locked

    524 views
    2 replies
    Latest over 5 years ago
    by Timothy Logan
  • Answered

    TPS7A78: TPS7A78 simulation model error 0 Locked

    847 views
    7 replies
    Latest over 5 years ago
    by JCHK
  • Suggested Answer

    UA78M: Power LDO selection 0 Locked

    488 views
    1 reply
    Latest over 5 years ago
    by JCHK
  • Answered

    UCC28810: Doubt regrading a reference design - Application note SLUA 752 0 Locked

    496 views
    4 replies
    Latest over 5 years ago
    by Novin George Thomas1
  • Suggested Answer

    UCC28180: Can the Cin is aluminum capacitor? 0 Locked

    215 views
    1 reply
    Latest over 5 years ago
    by Mike O'
  • Answered

    Power stage selection for atypical application 0 Locked

    484 views
    6 replies
    Latest over 5 years ago
    by Dawid Marczewski1
  • Suggested Answer

    TPS40180: TPS40180 OCP question 0 Locked

    355 views
    2 replies
    Latest over 5 years ago
    by Qian Chen
  • Answered

    TPS51716: TPS51716 VDDQ softstart and Current Consumption 0 Locked

    375 views
    3 replies
    Latest over 5 years ago
    by Qian Chen
  • Answered

    UCC28951: How to synchronize to external clock 0 Locked

    576 views
    3 replies
    Latest over 5 years ago
    by Colin Gillmor
  • Suggested Answer

    CSD17483F4: CSD17483F4 REQUIRE FOR manual soldering instructions 0 Locked

    282 views
    1 reply
    Latest over 5 years ago
    by John Wallace1
  • Answered

    CSD18563Q5A: HBD/CDM/MM Data of CSD18563Q5A 0 Locked

    314 views
    1 reply
    Latest over 5 years ago
    by John Wallace1
  • Answered

    TPS65400: Questions about I2C + ALERT PINs 0 Locked

    461 views
    4 replies
    Latest over 5 years ago
    by Denis Alain1
  • Answered

    LMZ10503: Replacement 0 Locked

    434 views
    1 reply
    Latest over 5 years ago
    by Chris Glaser
  • Answered

    LM5041: Problem with convergence in TINA-TI Reference Design 0 Locked

    370 views
    2 replies
    Latest over 5 years ago
    by Peter Meaney
  • Suggested Answer

    TPS55288: check the TPS55288 schematic 0 Locked

    430 views
    3 replies
    Latest over 5 years ago
    by Helen chen
  • Answered

    LM3530: Evaluation module of similar device 0 Locked

    359 views
    1 reply
    Latest over 5 years ago
    by Sean Zhou
  • Answered

    LP8867-Q1: LEDs flash 0 Locked

    484 views
    6 replies
    Latest over 5 years ago
    by Charles-Chen
  • Answered

    TLV703: TLV703 is tracking the input voltage 0 Locked

    935 views
    2 replies
    Latest over 5 years ago
    by Mickaël Porte
<>