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

    LMZM23600: Is LMZM23600 able to convert 24V(max 28V) to -10V? 0 Locked

    337 views
    2 replies
    Latest over 5 years ago
    by Denislav Petkov
  • Suggested Answer

    TPSM53602: Thermal performance 0 Locked

    331 views
    2 replies
    Latest over 5 years ago
    by Orlando Murray
  • Not Answered

    BQ76930: Two cells draining over time 0 Locked

    218 views
    3 replies
    Latest over 5 years ago
    by Matt Sunna
  • Not Answered

    LM51551: LM51551 can't work in Hiccup Mode when output Short-Circuit with SEPIC scheme 0 Locked

    434 views
    6 replies
    Latest over 5 years ago
    by Garrett Roecker
  • Answered

    BQ25898D: About Charging Current Setting 0 Locked

    401 views
    8 replies
    Latest over 5 years ago
    by Ning T
  • Answered

    TPS71501-EP: Startup time 0 Locked

    283 views
    2 replies
    Latest over 5 years ago
    by William Thomas1
  • Suggested Answer

    UCC21750-Q1: Calculation of Isource_pk and Isink_pk 0 Locked

    498 views
    1 reply
    Latest over 5 years ago
    by dimitri james
  • Answered

    TPS22810: Absolute max for current 0 Locked

    267 views
    1 reply
    Latest over 5 years ago
    by Andy Robles
  • Suggested Answer

    BQ27510-G3: FC Bit will not set 0 Locked

    298 views
    6 replies
    Latest over 5 years ago
    by Andy Liu (BMS)
  • Answered

    TPS7A88: Maximum load capacitance can support 0 Locked

    312 views
    4 replies
    Latest over 5 years ago
    by Jonathan Geronga
  • Answered

    TPS82150: EMI results for similar PNs, TPS82140 & TPS82130 0 Locked

    527 views
    1 reply
    Latest over 5 years ago
    by Kris F
  • Suggested Answer

    BQ27426: Is it possible to read the OCV? 0 Locked

    272 views
    3 replies
    Latest over 5 years ago
    by Andy Liu (BMS)
  • Suggested Answer

    BQ34110: please consult for more than one temperature sensor acquisition problem! 0 Locked

    370 views
    4 replies
    Latest over 5 years ago
    by Damian Lewis
  • Suggested Answer

    BQ77905: 7S recommendation 0 Locked

    322 views
    3 replies
    Latest over 5 years ago
    by WM5295
  • Suggested Answer

    Safe Discharging of supercapacitor. 0 Locked

    832 views
    1 reply
    Latest over 5 years ago
    by Rushi_Dalal
  • Suggested Answer

    LM61460-Q1: LM61460-Q1 PFM Mode 0 Locked

    468 views
    4 replies
    Latest over 5 years ago
    by Marshall_Beck
  • Suggested Answer

    BQ40Z50: Read the register data of bq40z50 through ev2300, in which the power information is completely wrong 0 Locked

    1113 views
    1 reply
    Latest over 5 years ago
    by Andy Liu (BMS)
  • Suggested Answer

    BQ27426EVM-738: Find Taper Current Setting 0 Locked

    845 views
    1 reply
    Latest over 5 years ago
    by Andy Liu (BMS)
  • Suggested Answer

    About Buck Layout Review 0 Locked

    642 views
    4 replies
    Latest over 5 years ago
    by Frank De Stasi
  • Suggested Answer

    BQ34Z110: bq34z110 0 Locked

    212 views
    1 reply
    Latest over 5 years ago
    by Andy Liu (BMS)
<>