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

    BQ24725A: Charge current, charge voltage setting 0 Locked

    371 views
    1 reply
    Latest over 5 years ago
    by Joel Hernandez II
  • Suggested Answer

    UCC21750-Q1: Is this part in production? 0 Locked

    328 views
    1 reply
    Latest over 5 years ago
    by Don Dapkus
  • Answered

    TPS23754EVM-383: I tried changing the tps23754evm-383 to 5.5v /3A, but it didn't work;I want to know how R421 is calculated in the schematic diagram。 0 Locked

    417 views
    9 replies
    Latest over 5 years ago
    by Michael Pahl
  • Suggested Answer

    UCC28740: OVP accuracy 0 Locked

    235 views
    1 reply
    Latest over 5 years ago
    by Hong Huang
  • Answered

    LM5069: LM5069-1 0 Locked

    311 views
    3 replies
    Latest over 5 years ago
    by Rakesh
  • Suggested Answer

    BQ25887: BQ25887 Voltage detection error 0 Locked

    560 views
    1 reply
    Latest over 5 years ago
    by Ricardo
  • Answered

    TPS7A84A: NR/SS cap 0 Locked

    221 views
    1 reply
    Latest over 5 years ago
    by JCHK
  • Suggested Answer

    TPS23754: tps23754EVM PCB 0 Locked

    306 views
    3 replies
    Latest over 5 years ago
    by Michael Pahl
  • Suggested Answer

    BQ78350-R1: The firmware version of BQ78350 device 0 Locked

    408 views
    1 reply
    Latest over 5 years ago
    by Matt Sunna
  • Answered

    BQ4050: coloumb counter ADC 0 Locked

    269 views
    2 replies
    Latest over 5 years ago
    by Arkadi shap
  • Suggested Answer

    TLV62090: Calculate Total Power Consumption 0 Locked

    315 views
    1 reply
    Latest over 5 years ago
    by Bjoern Goerner
  • Suggested Answer

    Is there any device output ramp time is 50us? 0 Locked

    263 views
    3 replies
    Latest over 5 years ago
    by Alfonso Furio
  • Suggested Answer

    TPS53631: How to deal with un-used pins 0 Locked

    326 views
    1 reply
    Latest over 5 years ago
    by Chasel Chen
  • Answered

    TPS51200: Schematic Review 0 Locked

    453 views
    1 reply
    Latest over 5 years ago
    by Qian Chen
  • Suggested Answer

    TPS65296: Using TPS65296 with only one VDD 0 Locked

    357 views
    1 reply
    Latest over 5 years ago
    by Yuchang Zhang
  • Answered

    WEBENCH® Tools/LM22672: operation above 5.0V 0 Locked

    368 views
    2 replies
    Latest over 5 years ago
    by AntoineGP
  • Answered

    BQ76930: Using Bq76930 instead of the Bq76940 on the BMS 0 Locked

    670 views
    4 replies
    Latest over 5 years ago
    by WM5295
  • Suggested Answer

    TPS54424: Design Review 0 Locked

    579 views
    4 replies
    Latest over 5 years ago
    by Ranjana Naik1
  • Suggested Answer

    TPS2379: TPS2379 support LLDP layer-2 power negotiation 0 Locked

    400 views
    1 reply
    Latest over 5 years ago
    by Thomas Lewis
  • Suggested Answer

    TPS53353: Equation (5) 0 Locked

    152 views
    1 reply
    Latest over 5 years ago
    by JohnTucker
<>