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
  • Answered

    BQ76PL455A-Q1: Looking for some help to get started on debugging and configuration. 0 Locked

    2126 views
    29 replies
    Latest over 6 years ago
    by Andy Li55
  • Suggested Answer

    TPS2552: On the operation of Vfaultpin 0 Locked

    226 views
    1 reply
    Latest over 6 years ago
    by Kevin-Cheng
  • Suggested Answer

    Output voltage changing of LM5175-Q1 0 Locked

    181 views
    1 reply
    Latest over 6 years ago
    by Youhao Xi
  • Answered

    TPS2115A: Power Sequencing with one Vin < 2.8 and one Vin>2.8 0 Locked

    351 views
    1 reply
    Latest over 6 years ago
    by Alpha H
  • Suggested Answer

    BQ40Z50: bq40z50 AFEC delay period setting 0 Locked

    427 views
    2 replies
    Latest over 6 years ago
    by BlueBottle
  • Answered

    WEBENCH® Tools/TPS62480: SS Cap. value 0 Locked

    644 views
    6 replies
    Latest over 6 years ago
    by PAN-M
  • Answered

    LMR14203: How to output negative voltage 0 Locked

    653 views
    4 replies
    Latest over 6 years ago
    by Liu Yang
  • Answered

    BQ40Z50-R1: GPC system no respond today? 0 Locked

    243 views
    2 replies
    Latest over 6 years ago
    by Bruce li
  • Suggested Answer

    Linux/TPS40400: How to recover from I2C SDA stuck low on TPS40400? 0 Locked

    2042 views
    3 replies
    Latest over 6 years ago
    by Mathew Jacob1
  • Suggested Answer

    BQ25713: No change in BATDRV when I2C register values are changed 0 Locked

    454 views
    3 replies
    Latest over 6 years ago
    by Joel Hernandez II
  • Suggested Answer

    BQ25703A: Continued debug from prior thread 0 Locked

    372 views
    1 reply
    Latest over 6 years ago
    by Joel Hernandez II
  • Suggested Answer

    BQ34Z100-G1: SOC falls back to zero at 90% 0 Locked

    1989 views
    37 replies
    Latest over 6 years ago
    by Bryan Kahler
  • Suggested Answer

    BQ24250: IS VBAT_UVLO programmable ? 0 Locked

    232 views
    2 replies
    Latest over 6 years ago
    by Joel Hernandez II
  • Suggested Answer

    TPS54360EVM-182: Eagle schematics and Board file 0 Locked

    791 views
    4 replies
    Latest over 6 years ago
    by Ambreesh Tripathi
  • Suggested Answer

    TPS54240: TPS54240 About 5 percent of the damage occurred when the power was turned on 0 Locked

    768 views
    6 replies
    Latest over 6 years ago
    by Arief Hernadi
  • Suggested Answer

    TPS23756: transformer recommendation 0 Locked

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

    BQ24014: Low V battery charging 0 Locked

    412 views
    1 reply
    Latest over 6 years ago
    by Bill Johns
  • Suggested Answer

    BQ34Z100-G1: Error is SoC estimation. 0 Locked

    3207 views
    41 replies
    Latest over 6 years ago
    by Bryan Kahler
  • Suggested Answer

    BQ24064: Drop Out Voltage 0 Locked

    270 views
    1 reply
    Latest over 6 years ago
    by Bill Johns
  • Answered

    LM5141QRGEVM: The board cannot output 5V @1A with the default setup 0 Locked

    504 views
    7 replies
    Latest over 6 years ago
    by Timothy Hegarty
<>