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

    TPS1HA08-Q1: Do you have LTspice model? 0 Locked

    196 views
    1 reply
    Latest over 4 years ago
    by Francisco Lauzurique
  • Answered

    BQ76930: What would happen if we connect TS1 to GND without resistor 0 Locked

    203 views
    1 reply
    Latest over 4 years ago
    by WM5295
  • Answered

    BQ2970: Confirmation on Li ion Recharge and Protection Circuit 0 Locked

    882 views
    1 reply
    Latest over 4 years ago
    by Shawn Hinkle
  • Suggested Answer

    LP8866-Q1: Control Current on each channel separately over i2c interface 0 Locked

    1047 views
    10 replies
    Latest over 4 years ago
    by Benjamin Vespone
  • Suggested Answer

    BQ2947: BQ2947 schematic check 0 Locked

    406 views
    1 reply
    Latest over 4 years ago
    by Shawn Hinkle
  • Suggested Answer

    TPS6594-Q1: How to distinguish TPS659411 and TPS659413 0 Locked

    405 views
    1 reply
    Latest over 4 years ago
    by Chris Sterzik
  • Not Answered

    DCR010505: DCR010505:DCR010505 has failure with no output 0 Locked

    784 views
    14 replies
    Latest over 4 years ago
    by iAlejandro
  • Answered

    TLV62565: FB resistor 0 Locked

    241 views
    1 reply
    Latest over 4 years ago
    by Excel Regidor
  • Not Answered

    TL494: TL494 Performance failure 0 Locked

    267 views
    2 replies
    Latest over 4 years ago
    by Aidan Davidson1
  • Suggested Answer

    TPS54020: Need Css pin FMEA 0 Locked

    279 views
    2 replies
    Latest over 4 years ago
    by Anthony F
  • Answered

    LP8867C-Q1: Power management forum 0 Locked

    225 views
    2 replies
    Latest over 4 years ago
    by Charles-Chen
  • Suggested Answer

    TPS65023-Q1: LDO PSRR 0 Locked

    409 views
    2 replies
    Latest over 4 years ago
    by Brian Berner
  • Suggested Answer

    CSD16406Q3: CSD16406Q3 ESD and Material report 0 Locked

    233 views
    1 reply
    Latest over 4 years ago
    by Chris Bull
  • Answered

    LP8864S-Q1: PFM MODE 0 Locked

    397 views
    5 replies
    Latest over 4 years ago
    by Charles-Chen
  • Answered

    TPS2379: Resistance too high 0 Locked

    421 views
    1 reply
    Latest over 4 years ago
    by Michael Pahl
  • Suggested Answer

    TPS23754: tps23754 design problem 0 Locked

    474 views
    1 reply
    Latest over 4 years ago
    by Michael Pahl
  • Not Answered

    TPS92515-Q1: start up delay 0 Locked

    174 views
    1 reply
    Latest over 4 years ago
    by Irwin Nederbragt
  • Not Answered

    BQ24610: 4 Cell Li-Ion pack slowly discharges after weeks of operation while connected to charger 0 Locked

    201 views
    6 replies
    Latest over 4 years ago
    by TIMOTHY CRIST
  • Suggested Answer

    BQ25606: charging profile 0 Locked

    226 views
    1 reply
    Latest over 4 years ago
    by Jeff F
  • Answered

    BQ25616: USB source type detection 0 Locked

    292 views
    1 reply
    Latest over 4 years ago
    by Jeff F
<>