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

    LM5118: pmp7851 and component choice 0 Locked

    328 views
    3 replies
    Latest over 4 years ago
    by Jason Ciou
  • Suggested Answer

    LM2594: LM2594HV 0 Locked

    359 views
    2 replies
    Latest over 4 years ago
    by Elena Gao
  • Answered

    TPS5450: Can I use Multiple Ceramic output capacitors instead of single electrolytic. 0 Locked

    280 views
    3 replies
    Latest over 4 years ago
    by Elena Gao
  • Answered

    LM5140-Q1: LM5140-Q1 output current for 12V output/24V input 0 Locked

    330 views
    4 replies
    Latest over 4 years ago
    by Elena Gao
  • Suggested Answer

    TPS54360: Thermal Pad connection 0 Locked

    225 views
    3 replies
    Latest over 4 years ago
    by Elena Gao
  • Not Answered

    BQ25892: Boost mode shuts off when discharge current is more than 100mAmps 0 Locked

    154 views
    1 reply
    Latest over 4 years ago
    by Ning T
  • Suggested Answer

    BQ25895M: Clarification regarding connection of charging IC BQ25895M. 0 Locked

    233 views
    4 replies
    Latest over 4 years ago
    by Ning T
  • Answered

    TPS92641: Duty cycle limits 0 Locked

    525 views
    9 replies
    Latest over 4 years ago
    by Yuting Shao
  • Suggested Answer

    TPS55288: Known Procedure of Passing SPT.7 of the USB-C Source Power Test 0 Locked

    263 views
    1 reply
    Latest over 4 years ago
    by Zack Liu
  • Answered

    LM4132-Q1: Multi-component semiconductor (MCO) 0 Locked

    2189 views
    12 replies
    Latest over 4 years ago
    by Wanqi Yao
  • Answered

    LM3643: I2C function check 0 Locked

    202 views
    1 reply
    Latest over 4 years ago
    by Yuting Shao
  • Not Answered

    TPS61165: two TPS61165 in parallel? 0 Locked

    168 views
    3 replies
    Latest over 4 years ago
    by Yuting Shao
  • Answered

    UCC28600: Examination of insulated power supply 0 Locked

    139 views
    1 reply
    Latest over 4 years ago
    by Jaden Ning
  • Not Answered

    Need to select a current source chip 0 Locked

    199 views
    2 replies
    Latest over 4 years ago
    by Frank Qiu
  • Suggested Answer

    UCC28180: UCC28180 Replacement 0 Locked

    337 views
    5 replies
    Latest over 4 years ago
    by Yunsheng Qu
  • Answered

    TPS543820EVM: TPS543820 0 Locked

    493 views
    5 replies
    Latest over 4 years ago
    by Lishuang Zhao
  • Answered

    TPS61256C: inductor selection 0 Locked

    307 views
    3 replies
    Latest over 4 years ago
    by Wenhao Wu
  • Suggested Answer

    TPS1663: On / Off using shutdown pin working only to 2.7A 0 Locked

    225 views
    6 replies
    Latest over 4 years ago
    by Rakesh
  • Suggested Answer

    LM62460: My voltage regulator keep failing as a short on my board. Help greatly appreciated! 0 Locked

    1305 views
    6 replies
    Latest over 4 years ago
    by Jimmy Hua
  • Not Answered

    TPS1663: The equation for power dissipation and Junction Temperature TJ for the IC TPS16630PWPR 0 Locked

    164 views
    3 replies
    Latest over 4 years ago
    by Rakesh
<>