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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 1 year 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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  • Answered

    WEBENCH® Tools/LM5121-Q1: lm5121 max output current 0 Locked

    497 views
    3 replies
    Latest over 6 years ago
    by Youhao Xi
  • Answered

    TPS2549: How to handle CTL pins 0 Locked

    294 views
    1 reply
    Latest over 6 years ago
    by Chuck Branch
  • Suggested Answer

    TPS2546: Asking for the TPS2546 schematic review 0 Locked

    248 views
    1 reply
    Latest over 6 years ago
    by Chuck Branch
  • Suggested Answer

    TPS53219A: Powering sequence of enable and VDD 0 Locked

    244 views
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    Latest over 6 years ago
    by Mathew Jacob1
  • Answered

    REF3230: REF3230 vs REF3430 0 Locked

    389 views
    1 reply
    Latest over 6 years ago
    by Marcoo Z
  • Suggested Answer

    BQ76940: BQ76940+BQ76200+BQ78350,charging is not working 0 Locked

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    1 reply
    Latest over 6 years ago
    by Matt Sunna
  • Answered

    TPS62172: Absolute Maximum Ratings: SW 0 Locked

    263 views
    1 reply
    Latest over 6 years ago
    by Chris Glaser
  • Suggested Answer

    About calibration question 0 Locked

    187 views
    1 reply
    Latest over 6 years ago
    by Matt Sunna
  • Suggested Answer

    LM5105: not working in continuous mode with the N channel fets at about 16VDC and above. 0 Locked

    362 views
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    Latest over 6 years ago
    by Richard Herring
  • Suggested Answer

    LM3410: Calculate the Output Capacitance (C2) - Coorected 0 Locked

    184 views
    1 reply
    Latest over 6 years ago
    by Irwin Nederbragt
  • Suggested Answer

    LM5576: device getting damaged 0 Locked

    687 views
    4 replies
    Latest over 6 years ago
    by Frank De Stasi
  • Answered

    BQ24261: Recovery from ESD Event 0 Locked

    533 views
    6 replies
    Latest over 6 years ago
    by David King1
  • Suggested Answer

    UCC28910: Transformer design of UCC28910 0 Locked

    490 views
    1 reply
    Latest over 6 years ago
    by Mike O'
  • Suggested Answer

    Boot pin of TPS54550 0 Locked

    234 views
    1 reply
    Latest over 6 years ago
    by Anthony F
  • Suggested Answer

    TPS65910: OFF state of TPS65910 0 Locked

    739 views
    9 replies
    Latest over 6 years ago
    by Brian Berner
  • Suggested Answer

    LMZ34002: Alternate part number 0 Locked

    573 views
    7 replies
    Latest over 6 years ago
    by Jimmy Hua
  • Suggested Answer

    BQ76930: Do i need to do calibration for current? 0 Locked

    256 views
    1 reply
    Latest over 6 years ago
    by Matt Sunna
  • Answered

    TPS65721: DCDC won't turn off :( 0 Locked

    507 views
    3 replies
    Latest over 6 years ago
    by Brian Berner
  • Answered

    BQ25703A: Using bq25703a as only battery charging station(there is not system output, etc.) 0 Locked

    627 views
    6 replies
    Latest over 6 years ago
    by Joel Hernandez II
  • Answered

    BQ25710: NiMH Battery 0 Locked

    671 views
    5 replies
    Latest over 6 years ago
    by Elder Costa17
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