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

    BQ24170: Smart battery charger IC 0 Locked

    827 views
    7 replies
    Latest over 6 years ago
    by Joel Hernandez II
  • Suggested Answer

    ucc256302 0 Locked

    180 views
    1 reply
    Latest over 6 years ago
    by Eric Faraci
  • Answered

    TINA/Spice/UCC28951: Q1. In which mode (burst, DCM or CCM) controller working at startup of UCC28951? because initially from 3.40m to 3.65m waveform looks abnormal in TINA TI Transient start up simulation of UCC28951. AM1 is current through Mosfet Q3, why 0 Locked

    794 views
    4 replies
    Latest over 6 years ago
    by SUDHANSHU TELRADHE
  • Suggested Answer

    TLV707: TLV70718 feedback resistors value 0 Locked

    340 views
    2 replies
    Latest over 6 years ago
    by Ryan Eslinger
  • Answered

    Hlaf Bridge LLC resonant converter Reference design 0 Locked

    827 views
    6 replies
    Latest over 6 years ago
    by Eric Faraci
  • Suggested Answer

    Question of TPS22810 0 Locked

    188 views
    1 reply
    Latest over 6 years ago
    by Alpha H
  • Answered

    LP87524B-Q1: LP87524B-Q1 datasheet 0 Locked

    322 views
    2 replies
    Latest over 6 years ago
    by John Manyala
  • Answered

    BQ34110: Trouble with EDV2 and EDV1 thresholds 0 Locked

    754 views
    3 replies
    Latest over 6 years ago
    by ColinY
  • Answered

    Multiplexed output PMU 0 Locked

    529 views
    6 replies
    Latest over 6 years ago
    by Wilson Fwu
  • Not Answered

    TPS65131-Q1: Pin to pin short test&pin to ground short test 0 Locked

    207 views
    2 replies
    Latest over 6 years ago
    by Liaqat Khan
  • Not Answered

    LM3281: Light Influence 0 Locked

    318 views
    2 replies
    Latest over 6 years ago
    by Liaqat Khan
  • Suggested Answer

    BQ24650: 30-minute precharge timer issue 0 Locked

    305 views
    1 reply
    Latest over 6 years ago
    by Kedar Manishankar
  • Suggested Answer

    Multichannel gate driver to replace multiple TLP350SM 0 Locked

    1059 views
    1 reply
    Latest over 6 years ago
    by Mateo Begue
  • Answered

    UCC21225A: How to use this for Vgs 7V max. GaN 0 Locked

    525 views
    5 replies
    Latest over 6 years ago
    by John Geiger
  • Answered

    LM323-N: Datasheet speaks of a 'K' designator, but there is no information as to what 'K' means 0 Locked

    493 views
    2 replies
    Latest over 6 years ago
    by Chris Kern
  • Answered

    UC2843: UC2843 OUTPUT PIN Max Voltage Rating 0 Locked

    731 views
    6 replies
    Latest over 6 years ago
    by Wei-Hao Chen (TW-FAE)
  • Answered

    TPS40055: Simulation tool 0 Locked

    430 views
    6 replies
    Latest over 6 years ago
    by David Baba
  • Suggested Answer

    BQ24296: Strange behavior 0 Locked

    208 views
    4 replies
    Latest over 6 years ago
    by Ning T
  • Suggested Answer

    BQ27411-G1: BQ27411-G1 0 Locked

    466 views
    3 replies
    Latest over 6 years ago
    by Daniel Sexton
  • Suggested Answer

    Linux/TPS65217: TPS65217 0 Locked

    566 views
    2 replies
    Latest over 6 years ago
    by Ahmad_Rashed
<>