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

    FUSION_DIGITAL_POWER_DESIGNER tool 0 Locked

    433 views
    1 reply
    Latest over 5 years ago
    by Matt Schurmann
  • Suggested Answer

    WEBENCH® Tools/TPS55340: Power management forum 0 Locked

    333 views
    4 replies
    Latest over 5 years ago
    by Jasper Li
  • Suggested Answer

    TLV61048: The output current of TLV61048 0 Locked

    380 views
    1 reply
    Latest over 5 years ago
    by Jasper Li
  • Not Answered

    UC3854B: uc3854b 0 Locked

    551 views
    13 replies
    Latest over 5 years ago
    by Peter Meaney
  • Answered

    TPS54360B: Overvoltage peak after start 0 Locked

    425 views
    4 replies
    Latest over 5 years ago
    by Ronny Zimmermann
  • Answered

    LM5050-1-Q1: LM5050-1Q1 0 Locked

    700 views
    3 replies
    Latest over 5 years ago
    by Karikalan Selvaraj
  • Answered

    Li-ion charger IC which can switch trickle charge and normal charge automatically 0 Locked

    309 views
    4 replies
    Latest over 5 years ago
    by Ryo Akashi
  • Suggested Answer

    BQ20Z655-R1: bq evaluation software (Instantaneous jump in the remaining capacity & relative state of charge is 100% due to the remaining capacity value jump and non zero charging current flow) 0 Locked

    352 views
    1 reply
    Latest over 5 years ago
    by Onyx Ahiakwo
  • Answered

    LM74700-Q1: LT-Spice of LM74700-Q1 0 Locked

    466 views
    6 replies
    Latest over 5 years ago
    by Karikalan Selvaraj
  • Suggested Answer

    LM5050-1: Schematic Verification 0 Locked

    418 views
    1 reply
    Latest over 5 years ago
    by Karikalan Selvaraj
  • Answered

    LM5051: How to optimize the Vgs voltage from 4V to higher in MOSFET paralleling application 0 Locked

    427 views
    5 replies
    Latest over 5 years ago
    by Karikalan Selvaraj
  • Answered

    LM5051: LM5051 application questions 0 Locked

    353 views
    4 replies
    Latest over 5 years ago
    by Karikalan Selvaraj
  • Answered

    LM27761: LDO Vout range limited to -5 to -1.5V, even though Vref is 1.22V 0 Locked

    331 views
    2 replies
    Latest over 5 years ago
    by Tanvee
  • Answered

    LM27761: Can I change PFM operation current? 0 Locked

    318 views
    2 replies
    Latest over 5 years ago
    by Tanvee
  • Suggested Answer

    BQ27541: BQ27541 NTC issue 0 Locked

    310 views
    1 reply
    Latest over 5 years ago
    by Onyx Ahiakwo
  • Answered

    BQ28Z610: Can I read each cell voltage by sending i2c command to bq28z610? And if I do , how to do it? 0 Locked

    320 views
    1 reply
    Latest over 5 years ago
    by Onyx Ahiakwo
  • Answered

    TPS54202: Regarding the behavior when the input voltage is below the output voltage setting 0 Locked

    252 views
    1 reply
    Latest over 5 years ago
    by Shawn Nie
  • Answered

    CCS/UCD3138: PWR026_PFC,SLUA708 0 Locked

    765 views
    18 replies
    Latest over 5 years ago
    by Audrey6171404
  • Answered

    TPS54495: Minimum input voltage for 5V output? 0 Locked

    217 views
    1 reply
    Latest over 5 years ago
    by Lishuang Zhao
  • Suggested Answer

    BQ78350-R1: TS1 readout in DAStatus2 register erroneous. 0 Locked

    263 views
    3 replies
    Latest over 5 years ago
    by user6217122
<>