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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 Function Safety documents for TPS65033xx-Q1 devices?

    Phil Yi
    Phil Yi
    Part Number: TPS650330-Q1 The Function Safety documents are on TI MySecure folder. Customers can request access from the link below: https://www.ti.com/licreg/docs/swlicexportcontrol.tsp?form_id=302189&prod_no=TPS65033X-Q1_FUNCTIONAL_SAFETY_DOCS&ref_url…
    • over 2 years ago
    • Power management
    • Power management forum
  • [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
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View FAQ threads
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  • Answered

    TPS23754: DC adapter and PoE seleect 0 Locked

    210 views
    1 reply
    Latest over 1 year ago
    by Diang Xing
  • Not Answered

    BQ27621-G1: About Accuracy of the battery fuel gauge ICs 0 Locked

    241 views
    1 reply
    Latest over 1 year ago
    by Anthony
  • Not Answered

    BQ40Z50-R2: BQ40z50-V2 SREC file required 0 Locked

    246 views
    1 reply
    Latest over 1 year ago
    by Anthony
  • Not Answered

    TLVM23625: 1V output stabilizes to 2V 0 Locked

    248 views
    3 replies
    Latest over 1 year ago
    by Joshua Austria
  • Answered

    BQ40Z50-R2: Cell 4 voltage being reported as 0V 0 Locked

    157 views
    1 reply
    Latest over 1 year ago
    by Nate Martin
  • Suggested Answer

    TPS7B82-Q1: Input Capacitor requirement for this IC when connected to KL30 0 Locked

    953 views
    10 replies
    Latest over 1 year ago
    by Ishaan Shetye
  • Answered

    BQ34Z100-R2: LED Control 0 Locked

    280 views
    1 reply
    Latest over 1 year ago
    by Diego
  • Suggested Answer

    BQ27421-G1: How to hardware reset BQ27421, when it's IIC command no response? 0 Locked

    335 views
    3 replies
    Latest over 1 year ago
    by Diego
  • Suggested Answer

    BQ28Z610-R1: SoC show 0 Locked

    349 views
    5 replies
    Latest over 1 year ago
    by Siddharth Venkatesan
  • Suggested Answer

    BQ79656-Q1: Functional Safety Documentation 0 Locked

    226 views
    1 reply
    Latest over 1 year ago
    by Quentin Silic
  • Suggested Answer

    TPS6593-Q1: UL94-V0 certification 0 Locked

    301 views
    2 replies
    Latest over 1 year ago
    by Nicholas McNamara
  • Suggested Answer

    TPS3619-33-EP: Query on the datasheet 0 Locked

    345 views
    3 replies
    Latest over 1 year ago
    by Sila Atalar
  • Suggested Answer

    TPS53688: TPS53656 Programming 0 Locked

    339 views
    1 reply
    Latest over 1 year ago
    by yihe
  • Not Answered

    LMR38020: What is the correct footprint - the datasheet has two conflicting footprints 0 Locked

    412 views
    7 replies
    Latest over 1 year ago
    by Youhao Xi
  • Answered

    UCD90160: What is the maximum value for MON pin voltage sense? 0 Locked

    197 views
    1 reply
    Latest over 1 year ago
    by yihe
  • Answered

    BQ41Z50EVM: Where is the latest firmware version? 0 Locked

    498 views
    2 replies
    Latest over 1 year ago
    by Kevin Banks
  • Suggested Answer

    BQ76952: BQ76952 0 Locked

    315 views
    7 replies
    Latest over 1 year ago
    by Thomas Rainey
  • Suggested Answer

    TPS92682-Q1: LH bit setting for TPS92682 0 Locked

    240 views
    1 reply
    Latest over 1 year ago
    by Tuan Tran74
  • Answered

    BQ41Z50: gg file Ra tables 0 Locked

    375 views
    1 reply
    Latest over 1 year ago
    by Siddharth Venkatesan
  • Suggested Answer

    BQ24250C: High Resistance Between BAT input and VSYS output 0 Locked

    217 views
    3 replies
    Latest over 1 year ago
    by Garrett Kreger
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