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

    TPS51200A-Q1: Output short circuit 0 Locked

    225 views
    2 replies
    Latest over 5 years ago
    by Koji Hayashi92
  • Answered

    TPS4H000-Q1: If 1 output hits current limit, can the other 3 output operate normally? 0 Locked

    263 views
    2 replies
    Latest over 5 years ago
    by Yoshiki Ochi
  • Suggested Answer

    BQ25601: Issue when BATFET disabled 0 Locked

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

    TPS1H000-Q1: How does it diagnose open/short LED load while holding mode? 0 Locked

    272 views
    2 replies
    Latest over 5 years ago
    by Yoshiki Ochi
  • Answered

    TPS55340: Help w/ Overcurrent Protection Issue 0 Locked

    190 views
    1 reply
    Latest over 5 years ago
    by Yinsong Cai1
  • Answered

    BQ77915: Questions about IC 0 Locked

    186 views
    3 replies
    Latest over 5 years ago
    by Michael M1
  • Suggested Answer

    BQ76942: Synchronous Voltage Monitor and Cell Balance using external FETs 0 Locked

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

    BQ76940: Power Sequence for BQ76940 0 Locked

    254 views
    2 replies
    Latest over 5 years ago
    by WM5295
  • Answered

    TPS3808: Need more info regarding Vol / Iol over temperature @ Vdd = 3.3V & 5V 0 Locked

    265 views
    1 reply
    Latest over 5 years ago
    by Michael_DeSando
  • Answered

    LMR36015-Q1: LMR36015-Q1 Failing to startup, stuck in current limiting hiccup 0 Locked

    800 views
    3 replies
    Latest over 5 years ago
    by David Gomez1
  • Suggested Answer

    BQ25616: KILIM & KICHG Setting ratio values 0 Locked

    290 views
    1 reply
    Latest over 5 years ago
    by Hong Mao
  • Suggested Answer

    BQ25120: Power output issue, Not stable on battery 0 Locked

    665 views
    5 replies
    Latest over 5 years ago
    by Raheem
  • Suggested Answer

    TPS630252: TPS630252 BGA soldering STENCIL example 0 Locked

    449 views
    1 reply
    Latest over 5 years ago
    by Milos
  • Suggested Answer

    BQ24035: Q2 - BAT FET not fully turning on? 0 Locked

    305 views
    2 replies
    Latest over 5 years ago
    by Raheem
  • Answered

    TPS53355: Pgood drop and return back 0 Locked

    370 views
    5 replies
    Latest over 5 years ago
    by Peter James Miller
  • Answered

    TPS7B7702-Q1: Vsense resistor 0 Locked

    344 views
    1 reply
    Latest over 5 years ago
    by Jason Song
  • Suggested Answer

    LM5007: LM5007 inverting mode to generate a negative voltage 0 Locked

    532 views
    2 replies
    Latest over 5 years ago
    by Frank De Stasi
  • Suggested Answer

    LMR36506-Q1: Inductor value for low power 0 Locked

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

    BQ27441-G1: Need help in GPOUT pin operations 0 Locked

    317 views
    3 replies
    Latest over 5 years ago
    by Andy Liu (BMS)
  • Answered

    BQ34110: Communication error occurs 0 Locked

    417 views
    19 replies
    Latest over 5 years ago
    by Andy Liu (BMS)
<>