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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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  • Answered

    LM5122-Q1: Line Regulation 0 Locked

    413 views
    1 reply
    Latest over 8 years ago
    by Youhao Xi
  • Answered

    LM3489: LM3489 enable delay 0 Locked

    625 views
    2 replies
    Latest over 8 years ago
    by Alan Martin
  • Suggested Answer

    LM5170-Q1: the limitation of changing the mode. 0 Locked

    377 views
    1 reply
    Latest over 8 years ago
    by Youhao Xi
  • Answered

    TPS40170: START UP CURRENT AT LOW INPUT VOLTAGE 0 Locked

    466 views
    2 replies
    Latest over 8 years ago
    by Alan Martin
  • Suggested Answer

    TPS57160-Q1: Selecting the Switching Frequency Fsw 0 Locked

    3385 views
    11 replies
    Latest over 8 years ago
    by noureddine tariba
  • Suggested Answer

    LM5170-Q1: current monitor 0 Locked

    408 views
    1 reply
    Latest over 8 years ago
    by Youhao Xi
  • Suggested Answer

    LM3481: Recommended circuit using shutdown 0 Locked

    458 views
    1 reply
    Latest over 8 years ago
    by Youhao Xi
  • Suggested Answer

    TPS23861: is there any risk when SDAI and SDAO are connected together in isolated systems? 0 Locked

    1195 views
    1 reply
    Latest over 8 years ago
    by Justin Smith
  • Suggested Answer

    TPS782: TPS782 0 Locked

    614 views
    1 reply
    Latest over 8 years ago
    by Mark Sellers
  • Suggested Answer

    TPS23861: does TPS23861 support only 802.3af standard in Automatic Mode? 0 Locked

    1011 views
    1 reply
    Latest over 8 years ago
    by Justin Smith
  • Answered

    TPS55010: Calculating maximum output level 0 Locked

    786 views
    3 replies
    Latest over 8 years ago
    by Benjamin Lough
  • Answered

    TPS65381-Q1: Do you PWM ERROR/WDI pin during diagnostics mode when configuring watchdog for Q&A? 0 Locked

    865 views
    2 replies
    Latest over 8 years ago
    by Scott Monroe
  • Not Answered

    BQ2970: Part will not come out of fault 0 Locked

    847 views
    4 replies
    Latest over 8 years ago
    by Vish Nadarajah
  • Answered

    TPS54360: Pre-bias start up 0 Locked

    459 views
    1 reply
    Latest over 8 years ago
    by Alan Martin
  • Answered

    Passive Notch Filter topology (with better characteristics than parallel LC Filter) 0 Locked

    2354 views
    7 replies
    Latest over 8 years ago
    by Thomas Kuehl
  • Suggested Answer

    BQ24725A: LTO battery charger 0 Locked

    3305 views
    1 reply
    Latest over 8 years ago
    by Wang5577
  • Answered

    LM3492: DIM Input Level 0 Locked

    926 views
    3 replies
    Latest over 8 years ago
    by Clinton Jensen
  • Suggested Answer

    BQ24232: Consumption When no Input detected 0 Locked

    666 views
    3 replies
    Latest over 8 years ago
    by Raheem
  • Not Answered

    [FAQ] Linux Drivers for PMICs 0 Locked

    9135 views
    6 replies
    Latest over 8 years ago
    by Nikhil Jotwani
  • Answered

    Switching/Linear Hybrid Lab Bench Power Supply, Recommended AC-DC Controller IC ? 0 Locked

    1564 views
    3 replies
    Latest over 8 years ago
    by Nabil M
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