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

    TPS63710: Current Limit Behavior 0 Locked

    579 views
    6 replies
    Latest over 6 years ago
    by Sam Ting
  • Suggested Answer

    TPS2552: Failuer mode of TPS2552 0 Locked

    292 views
    1 reply
    Latest over 6 years ago
    by Bob Ma
  • Answered

    TPS65197: release VGH locking status 0 Locked

    297 views
    3 replies
    Latest over 6 years ago
    by April Jiang
  • Answered

    UCC27714: Open Loop Test 0 Locked

    567 views
    3 replies
    Latest over 6 years ago
    by Sonu Jayachandran
  • Answered

    BQ77915: Over current discharge (OCD) not tripping 0 Locked

    655 views
    1 reply
    Latest over 6 years ago
    by Phil Wise
  • Answered

    LM5067: schematic review 0 Locked

    478 views
    4 replies
    Latest over 6 years ago
    by Rakesh
  • Answered

    UC3845: UVLO spec 0 Locked

    519 views
    1 reply
    Latest over 6 years ago
    by Sonal Singh
  • Suggested Answer

    TPS2549-Q1: How to degisn with USB HUB ? 0 Locked

    241 views
    1 reply
    Latest over 6 years ago
    by Bob Ma
  • Suggested Answer

    TPS562201: About inductor selection 0 Locked

    316 views
    2 replies
    Latest over 6 years ago
    by Shawn Nie
  • Suggested Answer

    TPS54821: load short mode operation 0 Locked

    271 views
    5 replies
    Latest over 6 years ago
    by Gavin Wang (Zejing)
  • Answered

    LP87702-Q1: LP87702-Q1 & TPS7A52-Q1 Qualified for ISO/TS 16949 or 17387? 0 Locked

    403 views
    3 replies
    Latest over 6 years ago
    by Steven He92
  • Answered

    LM5019: Output volatage is higher than calculated value 0 Locked

    402 views
    3 replies
    Latest over 6 years ago
    by user4856186
  • Answered

    Quality of IC data sheets 0 Locked

    761 views
    2 replies
    Latest over 6 years ago
    by Gary Lynch
  • Suggested Answer

    TINA/Spice/TPS61322: Spice encripted file 0 Locked

    508 views
    2 replies
    Latest over 6 years ago
    by Saket
  • Answered

    TPS61291: ALTERNATE STEP-UP FOR CC1120 0 Locked

    1126 views
    7 replies
    Latest over 6 years ago
    by david ramos
  • Suggested Answer

    UCC2897: reference design PMP 7410 0 Locked

    6527 views
    2 replies
    Latest over 6 years ago
    by John Griffin1
  • Suggested Answer

    LM5164-Q1: Maximum values of RDSON_HS and RDSON_LS? 0 Locked

    283 views
    2 replies
    Latest over 6 years ago
    by Katelyn Wiggenhorn
  • Answered

    UCC3895: Skipping pulse on osc/sync, 0 Locked

    1401 views
    4 replies
    Latest over 6 years ago
    by Colin Gillmor
  • Suggested Answer

    BQ24725A: BQ24725A precharge 0 Locked

    264 views
    1 reply
    Latest over 6 years ago
    by Paul Yeh
  • Answered

    TPS25200: TPS25200 nFault 0 Locked

    233 views
    2 replies
    Latest over 6 years ago
    by Masayoshi Takahashi
<>