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] What are restart (retry) and re-sequence?

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Restart only disable-then-enable the faulted rail to see whether it can recover from the previous fault. Restart…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] What are the fault shutdown slaves?

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120 , UCD90124 , UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90240 , UCD90320U , UCD9090A , UCD90124A , UCD90320 Fault shutdown slaves are the salve rails of the faulted rail. Each rail can have its own fault…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] How should users implement a power-down sequence when the rails ON_OFF_CONFIG are set to AUTO Mode?

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Auto Enable means the UCD90xxx device automatically sequences on rails once the device is powered up. It is…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Why does the GPI not turn off the rails when it is de-asserted if the GPI is configured as a rail's sequence-off dependency? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90240 , UCD90320U , UCD90120 , UCD9090A , UCD90160 , UCD90124 , UCD90320 , UCD90124A Each rail has its own ON/OFF Config setting. In the setting, there are three sources that can control…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Is packet error code required by the PMBus master? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 It is optional. UCD90xxx devices send and receive a packet error code (PEC) if the PMBus host supports it.…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Is clock stretching required by the PMBus master? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 Yes. UCD90xxx devices may hold clock low while processing the PMBus inquiry. According to PMBus specifications…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] TPSM84824: How to calculate FIT rate for this module?

    Gerold Dhanabalan - Online Design Tools
    Gerold Dhanabalan - Online Design Tools
    Part Number: TPSM84824 For modules, the FIT is calculated differently. This is a module assembly made of up individual components (unlike solid state silicon). As such this reliability prediction is based on TR-NWT-332 Reliability prediction model that…
    • Answered
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] TPSM846C24: How to calculate the FIT rate for this module?

    Gerold Dhanabalan - Online Design Tools
    Gerold Dhanabalan - Online Design Tools
    Part Number: TPSM846C24 For modules, the FIT is calculated differently. This is a module assembly made of up individual components (unlike solid state silicon). As such this reliability prediction is based on TR-NWT-332 Reliability prediction model…
    • Answered
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Why are there no undervoltage faults? For some reason, the rails do not start. UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 The UCD90xxx only starts to monitor undervoltage (UV) faults after the rail voltage reaches the Power Good…
    • over 3 years ago
    • Power management
    • Power management forum
  • [FAQ] Why do the rails not start or stop? UCD90xxx

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90120A , UCD9090 , UCD90160A , UCD90160 , UCD90320U , UCD90120 , UCD9090A , UCD90124 , UCD90124A , UCD90320 First, check if the EN pin output from the UCD90xxx is at the correct state. If not, it means the On/Off Config…
    • over 3 years ago
    • Power management
    • Power management forum
<>

View FAQ threads
  • Tags
  • RSS
  • More
  • Cancel
  • Suggested Answer

    LM5050-1: gate voltage abnormal 0 Locked

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

    TPS929120-Q1: EEPM6 Datasheet issue 0 Locked

    309 views
    3 replies
    Latest over 5 years ago
    by Frank Qiu
  • Answered

    TPS62561: inverting buck application 0 Locked

    512 views
    2 replies
    Latest over 5 years ago
    by Davor Pavlovski
  • Answered

    TPS63070: Start-Up Issue TPS63071 0 Locked

    554 views
    2 replies
    Latest over 5 years ago
    by user4136264
  • Answered

    BQ40Z50-R2: EV2300 0 Locked

    510 views
    6 replies
    Latest over 5 years ago
    by user6064051
  • Suggested Answer

    EV2400: Dead EV2400 0 Locked

    228 views
    1 reply
    Latest over 5 years ago
    by Andy Liu (BMS)
  • Discussion

    BQ30Z554-R1: Why BQ30Z55 SMBC pin (CLK for the SMBus) be clamped at low level? Locked

    541 views
    3 replies
    Latest over 5 years ago
    by Andy Liu (BMS)
  • Answered

    ULN2803A: 91W faulty batch ? 0 Locked

    577 views
    15 replies
    Latest over 5 years ago
    by Thomas BATIER
  • Suggested Answer

    UCC28019: Three phase PFC 0 Locked

    359 views
    1 reply
    Latest over 5 years ago
    by Teng Feng
  • Suggested Answer

    LP8863-Q1: LED Driver and LP8863 general question 0 Locked

    449 views
    3 replies
    Latest over 5 years ago
    by Charles-Chen
  • Answered

    LM338: Short Circuit Protection 0 Locked

    1855 views
    6 replies
    Latest over 5 years ago
    by Feryanlie Feryanlie
  • Suggested Answer

    WEBENCH® Tools/UCC28051: UCC28051 0 Locked

    331 views
    5 replies
    Latest over 5 years ago
    by Umayal Ramanathan
  • Not Answered

    BQ76940EVM: Unexpected ADC readings when shorting a cell 0 Locked

    200 views
    2 replies
    Latest over 5 years ago
    by Nikola Felkaroski
  • Answered

    LM10011: Adjusting Output Voltage of an isolated DC-DC converter module with LM10011 0 Locked

    1289 views
    17 replies
    Latest over 5 years ago
    by ghasem aghdam
  • Suggested Answer

    TPS53316: PowerGood (PG) & Enable (EN) Functionality 0 Locked

    301 views
    2 replies
    Latest over 5 years ago
    by Dorian Brillet de Cande
  • Answered

    BQ27421-G1: GPOUT pin 0 Locked

    671 views
    2 replies
    Latest over 5 years ago
    by Nikos Antoniou
  • Answered

    Low Power eFuse 0 Locked

    647 views
    4 replies
    Latest over 5 years ago
    by Praveen GD
  • Suggested Answer

    Design Hardware With Battery & USB Operated with current capacity of 1.5A 0 Locked

    214 views
    3 replies
    Latest over 5 years ago
    by Praveen GD
  • Suggested Answer

    BQ40Z50: bq40z50 Software Questions 0 Locked

    192 views
    1 reply
    Latest over 5 years ago
    by Andy Liu (BMS)
  • Answered

    No part number 0 Locked

    180 views
    4 replies
    Latest over 5 years ago
    by user5035929
<>