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
  • Not Answered

    BQ27441-G1: Device returning different device ID each time. 0 Locked

    744 views
    3 replies
    Latest over 7 years ago
    by Onyx Ahiakwo
  • Suggested Answer

    TPS65233: Datasheet missing part values 0 Locked

    656 views
    1 reply
    Latest over 7 years ago
    by Zhao Ma
  • Answered

    TPS61178: Short Circuit Behavior 0 Locked

    402 views
    1 reply
    Latest over 7 years ago
    by Jasper Li
  • Not Answered

    TPS2660: TPS26601 Issue about SHDN/ 0 Locked

    997 views
    3 replies
    Latest over 7 years ago
    by Jake Jung
  • Suggested Answer

    TPS54821EVM-049: 3V OPERATION 0 Locked

    434 views
    1 reply
    Latest over 7 years ago
    by Gavin Wang (Zejing)
  • Not Answered

    BQ24171: BQ24171 Safety Timer Spec when JEITA Condition with LOW and HIGH Temperature 0 Locked

    892 views
    6 replies
    Latest over 7 years ago
    by March Jasper
  • Suggested Answer

    BQ40Z60: Enabling CHG, DSG FET 0 Locked

    1766 views
    4 replies
    Latest over 7 years ago
    by Thomas Albrecht46
  • Suggested Answer

    TPS3422: TPS3422 with tactile switch to power ON the system, without using microcontroller 0 Locked

    2727 views
    3 replies
    Latest over 7 years ago
    by Michael_DeSando
  • Answered

    TPS548A20: PGOOD pin sink current capability 0 Locked

    486 views
    2 replies
    Latest over 7 years ago
    by JohnTucker
  • Answered

    TPS548A20: Fsw setting 0 Locked

    363 views
    2 replies
    Latest over 7 years ago
    by JohnTucker
  • Answered

    TPS548A20: MODE pin resistor tolerance 0 Locked

    423 views
    2 replies
    Latest over 7 years ago
    by JohnTucker
  • Suggested Answer

    UCD90160A: Firmware watchdog timer 0 Locked

    614 views
    1 reply
    Latest over 7 years ago
    by yihe
  • Suggested Answer

    LM2674: Output Capacitance with ferrite bead 0 Locked

    563 views
    4 replies
    Latest over 7 years ago
    by Mark Guastaferro
  • Not Answered

    BQ40Z50EVM-561: bq40z60 0 Locked

    565 views
    2 replies
    Latest over 7 years ago
    by TK82
  • Not Answered

    BQ24296: Charger hanged when battery discharged 0 Locked

    2127 views
    8 replies
    Latest over 7 years ago
    by Joel Hernandez II
  • Suggested Answer

    TPS54260: Overvoltage protection implementation in DC/DC 0 Locked

    1855 views
    7 replies
    Latest over 7 years ago
    by HKH
  • Not Answered

    BQ3050: BQ3050 FUSE leakage current check 0 Locked

    369 views
    1 reply
    Latest over 7 years ago
    by Onyx Ahiakwo
  • Answered

    LM5066I: Quiescent Current in Battery Application 0 Locked

    485 views
    2 replies
    Latest over 7 years ago
    by Jessica Riley90
  • Answered

    bq76PL455A-Q1: How to convert the response two bytes data to real voltage value? 0 Locked

    1012 views
    10 replies
    Latest over 7 years ago
    by David Wiest Jr
  • Not Answered

    BQ27421EVM-G1B: BQ27421EVM-G1B: 0 Locked

    424 views
    1 reply
    Latest over 7 years ago
    by Onyx Ahiakwo
<>