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
  • Answered

    TPS563252: Input capacitor selection 0 Locked

    94 views
    1 reply
    Latest 6 months ago
    by Andy Chen
  • Answered

    BQ79616-Q1: Unable to unlock OTP Programming 0 Locked

    611 views
    25 replies
    Latest 6 months ago
    by Quentin Silic
  • Suggested Answer

    LP5891: matrix power saving mode 0 Locked

    229 views
    8 replies
    Latest 6 months ago
    by Monet Xu
  • Suggested Answer

    LP5024EVM: USB2ANY Unable to Load Registers 0 Locked

    260 views
    7 replies
    Latest 6 months ago
    by Jared Zhou
  • Answered

    BQ79616-Q1: Unable to get response after programming OTP 0 Locked

    249 views
    6 replies
    Latest 6 months ago
    by Alex ji
  • Suggested Answer

    TPS82130: Output voltage range Question 0 Locked

    87 views
    1 reply
    Latest 6 months ago
    by Colin Chen
  • Answered

    LM5171: ISET's "1.0V" offset / threshold 0 Locked

    215 views
    6 replies
    Latest 6 months ago
    by Dan Quixoté
  • Suggested Answer

    TPS61023: Unable to withstand for Output current of 200mA 0 Locked

    367 views
    14 replies
    Latest 6 months ago
    by Travis Wang
  • Suggested Answer

    TPS564255: Chip dont work 0 Locked

    139 views
    4 replies
    Latest 6 months ago
    by Lucia Gao
  • Not Answered

    TLC5955: Schmitt Input Buffer Characteristics 0 Locked

    104 views
    5 replies
    Latest 6 months ago
    by Jared Zhou
  • Answered

    LM25141-Q1: LM25141 SIMPLIS model 0 Locked

    130 views
    3 replies
    Latest 6 months ago
    by ARPITA NATH
  • Answered

    TPS62816-Q1: Thermal shutdown 0 Locked

    205 views
    4 replies
    Latest 6 months ago
    by Shinji Tsuji
  • Not Answered

    Can EN/UVLO be driven to 3.3V when VIN=0V 0 Locked

    46 views
    0 replies
    Started 6 months ago
    by Antonios Sarros
  • Answered

    LM70880: Webench Fail 0 Locked

    206 views
    8 replies
    Latest 6 months ago
    by SHINYOUNG KIM
  • Answered

    UCC21520: Question: I_VCCI quiescent supply current & supply power at VCCI =5V - 18V 0 Locked

    214 views
    8 replies
    Latest 6 months ago
    by Taichi Iura
  • Answered

    LP8725: How to use PMIC 0 Locked

    131 views
    4 replies
    Latest 6 months ago
    by Satoshi Okamoto
  • Answered

    BQ79600-Q1: transformers 0 Locked

    112 views
    1 reply
    Latest 6 months ago
    by David Ray
  • Suggested Answer

    BQ79731-Q1: Ratiometric measuring for temperature 0 Locked

    136 views
    1 reply
    Latest 6 months ago
    by Zachary Balov
  • Answered

    TPS6594-Q1: PGOOD feature 0 Locked

    171 views
    1 reply
    Latest 6 months ago
    by Michael Gambrill
  • Suggested Answer

    TPS4812-Q1: Field-Adjustable Current Limits 0 Locked

    165 views
    5 replies
    Latest 6 months ago
    by Sarah Raines
<>