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Power management

Power management

Power management forum

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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] TPS650330-Q1: How can I get design documents for TPS65033xx-Q1 devices?

    Phil Yi
    Phil Yi
    Part Number: TPS650330-Q1 The design documents (datasheets and TRM) are on TI MySecure folder. Customers can request access from the link below: www.ti.com/.../swlicexportcontrol.tsp Once approved, design documents can be accessed from the link…
    • over 2 years ago
    • Power management
    • Power management forum
  • [FAQ] BQ4050: FAQ Home Page

    Jose Couso
    Jose Couso
    Part Number: BQ4050 FAQs How to enter UNSEAL or FULL ACCESS modes after sealing the gauge? How long does the voltage on the PACK pin need to be applied to wake-up the gauge? What are the differences between hardware and firmware protections? …
    • Answered
    • over 2 years ago
    • Power management
    • Power management forum
  • [FAQ] What are the advantages to using Totem Pole PFCs in power supply applications?

    William Moore
    William Moore
    Other Parts Discussed in Thread: UCC27517A , UCC21551 , UCC27714 When looking for a power supply for an AC/DC system, high efficiency, high power factor (PF) and low power line harmonics are all of major concern. This article will take a look at power…
    • over 2 years ago
    • Power management
    • Power management forum
  • [FAQ] Why does SOC drop from 100% after full charge?

    Wyatt Keller
    Wyatt Keller
    The gauge takes an OCV measurements periodically when in relaxation and then uses this measurement to recalculate the remaining capacity and full charge capacity. If there is a change in conditions, like temperature, or every 5 hours in relaxation mode…
    • Answered
    • over 2 years ago
    • Power management
    • Power management forum
  • [FAQ] Why is the Update Status register not updating from 5 to 6?

    Wyatt Keller
    Wyatt Keller
    Other Parts Discussed in Thread: BQSTUDIO One of the most common problems when trying to complete the learning cycle is having the Update Status (Learned Status) not transition from 0x05 to 0x06. This transition indicates that the gauge has updated the…
    • Answered
    • over 2 years ago
    • Power management
    • Power management forum
  • [FAQ] BQ27Z561 FAQs

    Wyatt Keller
    Wyatt Keller
    Other Parts Discussed in Thread: BQ27Z561 , BQ27Z561-R2 , BQ27Z561-R1 BQ27Z561 FAQ Home Page This is the home page for common questions in relation to the BQ27Z561, BQ27Z561-R1, and BQ27Z561-R2. FAQs Related FAQ home pages: Impedance Track FAQ…
    • Answered
    • over 2 years ago
    • Power management
    • Power management forum
  • [FAQ] Why is the Update Status not updating from 4 to 5?

    Wyatt Keller
    Wyatt Keller
    Other Parts Discussed in Thread: BQSTUDIO One of the most common problems when trying to complete the learning cycle is having the Update Status (Learned Status) not transition from 0x04 to 0x05. For this to happen, there must be at least a 90% change…
    • Answered
    • over 2 years ago
    • Power management
    • Power management forum
  • [FAQ] Thermal Dissipation from an LDO Perspective

    McKyla Beuttler
    McKyla Beuttler
    Other Parts Discussed in Thread: TPS7B86-Q1 , TPS745 One commonly misunderstood topic regarding low dropout regulators (LDOs) is thermal dissipation. LDOs drop the input voltage using a FET in order to achieve the desired output rail. This power dissipates…
    • over 2 years ago
    • Power management
    • Power management forum
  • [FAQ] BQ24800: What is the maximum duty cycle of BQ24800? Can this duty cycle support my input adapter voltage?

    Alec Lehman
    Alec Lehman
    Part Number: BQ24800 Other Parts Discussed in Thread: BQ24780S Customers are often interested in knowing the max duty cycle of the buck converter so they can estimate the max output voltage of the charger at different input voltages. The max duty cycle…
    • Answered
    • over 2 years ago
    • Power management
    • Power management forum
  • [FAQ] TPSF12C1 and TPSF12C3 power-supply filter IC FAQs

    Timothy Hegarty
    Timothy Hegarty
    Other Parts Discussed in Thread: TPSF12C1 , TPSF12C3 Part Numbers: TPSF12C1/3/-Q1 TPSF12C1/-Q1 and TPSF12C3/-Q1 FAQ home page This is the home page for common questions and collateral resources related to the TI's new family of power-supply filter…
    • Answered
    • over 2 years ago
    • Power management
    • Power management forum
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  • Not Answered

    TPS23750: Gate not working on TPS23750 0 Locked

    257 views
    4 replies
    Latest over 1 year ago
    by Diang Xing
  • Suggested Answer

    BQ40Z50: Cell balancing internal bypass 0 Locked

    677 views
    3 replies
    Latest over 1 year ago
    by Jose Couso
  • Suggested Answer

    CSD19533KCS: peack diode recovery dv/dt 0 Locked

    406 views
    3 replies
    Latest over 1 year ago
    by John Wallace1
  • Suggested Answer

    UCC21550-Q1: Industrial grade part of UCC21550-Q1 0 Locked

    372 views
    1 reply
    Latest over 1 year ago
    by Sean Cashin
  • Suggested Answer

    TPS25983: Looking for options to externally modify trip current like with TPS25985 0 Locked

    304 views
    7 replies
    Latest over 1 year ago
    by Kunal Goel
  • Not Answered

    USB2GPIO-LOADER-SW: firmware loader still supported? 0 Locked

    776 views
    5 replies
    Latest over 1 year ago
    by Dominik Hartl11
  • Answered

    TPS2595: The output current after hard short and soft short occurs is less than the minimum value of ILIM 0 Locked

    209 views
    3 replies
    Latest over 1 year ago
    by Kunal Goel
  • Answered

    LM7480-Q1: Common source configuration questions 0 Locked

    533 views
    5 replies
    Latest over 1 year ago
    by Praveen GD
  • Answered

    LM74202-Q1: Unencrypted Spice file 0 Locked

    342 views
    2 replies
    Latest over 1 year ago
    by Tuong PV
  • Suggested Answer

    TPS65987D: Question about the condition of parts 0 Locked

    299 views
    1 reply
    Latest over 1 year ago
    by Tommy Lin
  • Suggested Answer

    TPS56C215: simulate Gain/Phase 0 Locked

    159 views
    1 reply
    Latest over 1 year ago
    by Amod Vaze
  • Suggested Answer

    LMR51430: OR-ing of output voltages 0 Locked

    155 views
    1 reply
    Latest over 1 year ago
    by Marshall_Beck
  • Suggested Answer

    BQ20Z40: [Case:566327]Technical Data Inquiry 0 Locked

    232 views
    3 replies
    Latest over 1 year ago
    by Jonny
  • Not Answered

    BQ25896: Stops outputting VSYS and won't exit "unknown mode" 0 Locked

    643 views
    19 replies
    Latest over 1 year ago
    by Garrett Kreger
  • Suggested Answer

    Controller for 2switch flyback 1000V input 0 Locked

    494 views
    3 replies
    Latest over 1 year ago
    by Steven Mappus1
  • Suggested Answer

    TPS2121: ST output 0 Locked

    130 views
    1 reply
    Latest over 1 year ago
    by Patrick Shalton
  • Suggested Answer

    UCC5871-Q1: OV on Vds of external MOSFET 0 Locked

    286 views
    1 reply
    Latest over 1 year ago
    by Akshat Murali
  • Suggested Answer

    TPS3125: TPS3125 0 Locked

    124 views
    1 reply
    Latest over 1 year ago
    by Masoud Beheshti61
  • Answered

    BQ2970: Problem with initial "bootstrap" 0 Locked

    899 views
    12 replies
    Latest over 1 year ago
    by Andria McIntyre
  • Answered

    TPS7A25: Acceptable reverse current without any damage 0 Locked

    475 views
    1 reply
    Latest over 1 year ago
    by Stephen Ziel
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