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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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  • Not Answered

    Using bq2954 for 5-cell Li-Po charger 0 Locked

    464 views
    1 reply
    Latest over 15 years ago
    by Chris Glaser
  • Not Answered

    TPS65920: HFCLKOUT Not a Square Wave 0 Locked

    558 views
    5 replies
    Latest over 15 years ago
    by Rob Mitchell
  • Not Answered

    OMAP-L137 power management chip selection 0 Locked

    321 views
    3 replies
    Latest over 15 years ago
    by HarriSiirtola
  • Answered

    What's the difference between TPS73125DVBT and TPS73125DVBTG4? 0 Locked

    588 views
    1 reply
    Latest over 15 years ago
    by Scot Lester
  • Suggested Answer

    TPS65930 "internal use" pins and bypass caps? 0 Locked

    381 views
    1 reply
    Latest over 15 years ago
    by Gandhar Dighe
  • Discussion

    TPS65950: CV mode current limit Locked

    379 views
    1 reply
    Latest over 15 years ago
    by MikeW9894
  • Suggested Answer

    Problems with PWM0 on TPS65950 0 Locked

    450 views
    3 replies
    Latest over 15 years ago
    by MikeW9894
  • Not Answered

    UC28025 Supplies 0 Locked

    213 views
    0 replies
    Started over 15 years ago
    by Kench
  • Answered

    bq77PL900 Vout calibration and measurement 0 Locked

    851 views
    5 replies
    Latest over 15 years ago
    by Brian Myers
  • Suggested Answer

    TPS40211 0 Locked

    573 views
    3 replies
    Latest over 15 years ago
    by Adrian Swarzynski
  • Not Answered

    Problem with BQ20Z90 0 Locked

    274 views
    1 reply
    Latest over 15 years ago
    by SW5307
  • Not Answered

    bq78PL114 P1N, P2N, P3N and P4N operating 0 Locked

    483 views
    1 reply
    Latest over 15 years ago
    by Jim M15252
  • Not Answered

    Problem with BQ20Z70 0 Locked

    429 views
    2 replies
    Latest over 15 years ago
    by Andrew Fomushkin
  • Suggested Answer

    Naming of TPS65950 MADC EDR register 0 Locked

    303 views
    1 reply
    Latest over 15 years ago
    by Gandhar Dighe
  • Not Answered

    tps61202 unstability 0 Locked

    1009 views
    6 replies
    Latest over 15 years ago
    by Ashley Peters
  • Suggested Answer

    BQ 2060 power spike and shut down 0 Locked

    718 views
    3 replies
    Latest over 15 years ago
    by Bill J10799
  • Not Answered

    Question for bq20z45 circuitry 0 Locked

    218 views
    3 replies
    Latest over 15 years ago
    by Chase7071949597
  • Not Answered

    RTC accuracy for TPS65930 work around gate in the app note 0 Locked

    378 views
    0 replies
    Started over 15 years ago
    by Mohsen Khayami
  • Discussion

    TPS65950/30/20: Is this family of devices compatible with OMAP3? Locked

    576 views
    0 replies
    Started over 15 years ago
    by Gandhar Dighe
  • Not Answered

    BQ20zxx device could not unseal 0 Locked

    562 views
    4 replies
    Latest over 15 years ago
    by Jerry Yang15781
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