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

    LMR14030: LMR14030SDDAR for 24V systems 0 Locked

    302 views
    2 replies
    Latest over 6 years ago
    by Andy Chen
  • Answered

    TPS51216: TPS51216 VDDQ rising time max spec? 0 Locked

    361 views
    4 replies
    Latest over 6 years ago
    by Jimmy Wang27
  • Suggested Answer

    TPS54302: about VOUT waveform 0 Locked

    344 views
    5 replies
    Latest over 6 years ago
    by Shawn Nie
  • Answered

    TPS65251: Multiple PGOOD pins 0 Locked

    439 views
    2 replies
    Latest over 6 years ago
    by Zhao Ma
  • Answered

    TPS61022: Radius Value Information 0 Locked

    415 views
    2 replies
    Latest over 6 years ago
    by Zack Liu
  • Answered

    TPS61022: TPS61022 Quiescent current 0 Locked

    888 views
    7 replies
    Latest over 6 years ago
    by Sam Shyu36
  • Not Answered

    Boost Circuit for Audio Power Amp 5V -> 12V 0 Locked

    391 views
    2 replies
    Latest over 6 years ago
    by Zack Liu
  • Answered

    UCC5320: UCC5320EC 0 Locked

    409 views
    3 replies
    Latest over 6 years ago
    by Steven He92
  • Suggested Answer

    TPS65233: SCL status of TPS65233 0 Locked

    401 views
    5 replies
    Latest over 6 years ago
    by Sam(MPAA) Zhang
  • Answered

    BQ25882: Vsys drop during transition to the supplement mode 0 Locked

    223 views
    2 replies
    Latest over 6 years ago
    by Shinya Sawamoto
  • Answered

    BQ25601: withstand voltage of 0.047 uF between BTST and SW 0 Locked

    291 views
    2 replies
    Latest over 6 years ago
    by user4369354
  • Suggested Answer

    TPS61088-Q1:TPS61088-Q1 Problem 0 Locked

    538 views
    1 reply
    Latest over 6 years ago
    by Helen chen
  • Answered

    TPS62175: Hot plugging boards with this part to 24v line may burn out: never on 12v line 0 Locked

    532 views
    7 replies
    Latest over 6 years ago
    by Chris Glaser
  • Answered

    LM3488: LM3488 What is the difference with LM3478? 0 Locked

    1486 views
    3 replies
    Latest over 6 years ago
    by Andrey Yakimov
  • Answered

    BQ76PL455A-Q1: Single device write with response 0 Locked

    477 views
    4 replies
    Latest over 6 years ago
    by Nick Hartley
  • Answered

    TPS54327: TPS54327, adding current feedback feature 0 Locked

    442 views
    3 replies
    Latest over 6 years ago
    by Iven Su
  • Suggested Answer

    TPS2483: How read marking data code 0 Locked

    1164 views
    4 replies
    Latest over 6 years ago
    by Praveen GD
  • Answered

    UCC28700: Is it fine if we connect load on both output windings (auxiliary winding and main winding) of flyback transformer(UCC28700). actually we tried same but found that with load on main winding circuit is working fine but when we connect load on auxi 0 Locked

    446 views
    5 replies
    Latest over 6 years ago
    by SUDHANSHU TELRADHE
  • Suggested Answer

    TPS61021A: TPS61021A 0 Locked

    421 views
    2 replies
    Latest over 6 years ago
    by Helen chen
  • Suggested Answer

    TPS61021A: Layout for input capacitor and inductor 0 Locked

    643 views
    3 replies
    Latest over 6 years ago
    by Helen chen
<>