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] 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
  • [FAQ] Why does GUI show 0.2 V while the real measuring result is 0 V? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Some monitor pins of the UCD90xxx have a minor limitation on the lower range of monitoring—they…
    • over 3 years ago
    • Power management
    • Power management forum
<>

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

    TPS54335A: unstable start up at EN = floating 0 Locked

    261 views
    3 replies
    Latest over 6 years ago
    by Yusuke Mukuno
  • Answered

    TPS7A78: Pin to Pin Open/Short test/ External components Open/Short test 0 Locked

    627 views
    4 replies
    Latest over 6 years ago
    by Yusuke Mukuno
  • Answered

    TPS65186: Power up/down sequence between Vbattery and VIN3P3 0 Locked

    274 views
    3 replies
    Latest over 6 years ago
    by Yusuke Mukuno
  • Answered

    BQ79606A-Q1: Is there demo for external temperature detection 0 Locked

    308 views
    2 replies
    Latest over 6 years ago
    by Qianqian
  • Answered

    TPS61089: dissipate heat of VQFN package 0 Locked

    272 views
    3 replies
    Latest over 6 years ago
    by Helen chen
  • Answered

    LM5165: PFM Inductor Calculation 0 Locked

    1538 views
    2 replies
    Latest over 6 years ago
    by Austen Fogarty
  • Answered

    UCC28084: ESD Rating 0 Locked

    386 views
    1 reply
    Latest over 6 years ago
    by Teng Feng
  • Answered

    TPS2373: POE circuit question 0 Locked

    818 views
    6 replies
    Latest over 6 years ago
    by Darwin Fernandez
  • Suggested Answer

    LP8556: LP8556 0 Locked

    254 views
    2 replies
    Latest over 6 years ago
    by Sean Zhou
  • Suggested Answer

    TPS61169: Improve output efficiency 0 Locked

    394 views
    2 replies
    Latest over 6 years ago
    by Sean Zhou
  • Answered

    TPS61196: EN/PWM pin volatge margin 0 Locked

    537 views
    2 replies
    Latest over 6 years ago
    by Sean Zhou
  • Suggested Answer

    TPS61165: Led driver don't turn off 0 Locked

    274 views
    2 replies
    Latest over 6 years ago
    by Sean Zhou
  • Suggested Answer

    TPS61500: Less current output than expected 0 Locked

    547 views
    8 replies
    Latest over 6 years ago
    by Sean Zhou
  • Answered

    LM3643: Some pin connections 0 Locked

    210 views
    2 replies
    Latest over 6 years ago
    by Sean Zhou
  • Answered

    TPS61240: I cannot exactly understand the concept of pulse frequency mode(PFM) and Discontinuous mode(DCM) 0 Locked

    1131 views
    2 replies
    Latest over 6 years ago
    by Yunsik Chung
  • Suggested Answer

    LM5146-Q1-EVM12V: LM5146EVM Vcc voltage question 0 Locked

    561 views
    1 reply
    Latest over 6 years ago
    by Timothy Hegarty
  • Answered

    BQ25895: Adding USB type-c bidirectional support using TPS65988 0 Locked

    1813 views
    3 replies
    Latest over 6 years ago
    by AbdulRahman Qadry
  • Answered

    UCC27525: UCC27525 0 Locked

    550 views
    6 replies
    Latest over 6 years ago
    by daniel sargezi
  • Suggested Answer

    LM5145: OVP and Hiccup 0 Locked

    306 views
    1 reply
    Latest over 6 years ago
    by David Baba
  • Answered

    Simple Switcher - Negative Input & Negative Output? 0 Locked

    1624 views
    6 replies
    Latest over 6 years ago
    by James VDC
<>