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
  • Not Answered

    BQ77915: Issue in turning ON and OFF of the MOSFET 0 Locked

    120 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Not Answered

    BQ76942: I2C with CRC and timeout 0 Locked

    214 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Suggested Answer

    BQ76942: BQ7694202 I2C configuration 0 Locked

    123 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Suggested Answer

    BQ29700EVM-610: Battery Protection Devices for CR123A Non-Rechargeable Battery 0 Locked

    142 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Suggested Answer

    BQ76952: Difference between DDSG & DSG and DCHG & CHG 0 Locked

    175 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Not Answered

    BQ76942: Confusion In Instructions for Writing Security Keys -- Technical Reference Manual 0 Locked

    142 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Answered

    TPSM365R6: Webench vs DataSheet 0 Locked

    253 views
    3 replies
    Latest 6 months ago
    by Richard Fu22
  • Suggested Answer

    BQ2969: Do we have a PN that can support 4.35V OVP threshold? 0 Locked

    84 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Not Answered

    BQ76952: Pin34 of the BQ76952 chip as VDD50.When initializing the BQ76952, VDD50 drop to 0V for about tens of milliseconds 0 Locked

    114 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Suggested Answer

    BQ76952: Calculate SOC and SOH with Host device +1 Locked

    139 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Suggested Answer

    BQ2962: ESD test report 0 Locked

    90 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Answered

    LP8758-E0: I2C address 0 Locked

    93 views
    2 replies
    Latest 6 months ago
    by Sarah Lao
  • Not Answered

    BQ77915: BQ7791514 0 Locked

    172 views
    7 replies
    Latest 6 months ago
    by Luis H. S.
  • Not Answered

    BQ79616: No TX communication from BQ79616 0 Locked

    145 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Suggested Answer

    BQ79616: Negative cell voltage measurement 0 Locked

    132 views
    1 reply
    Latest 6 months ago
    by Luis H. S.
  • Not Answered

    BQ40Z50: exit shutdown mode delays 0 Locked

    177 views
    5 replies
    Latest 6 months ago
    by Alan Frias
  • Not Answered

    BQ76952: Inquiry Regarding DDSG & DCHG Behavior on BQ76952 Without Programmed 0 Locked

    169 views
    5 replies
    Latest 6 months ago
    by Alexis_H
  • Not Answered

    BQ25171-Q1: Can BQ25171-Q1 be configure the charging current with different temperature 0 Locked

    103 views
    1 reply
    Latest 6 months ago
    by Bill Johns
  • Suggested Answer

    TPS65219: Request for Functional Safety documents 0 Locked

    105 views
    1 reply
    Latest 6 months ago
    by Sathish Vallamkonda
  • Suggested Answer

    TPS65220: Difference between TPS6522053RHBR, TPS6521920WRHBRQ1, TPS6521901RHBR 0 Locked

    102 views
    1 reply
    Latest 6 months ago
    by Sathish Vallamkonda
<>