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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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  • Not Answered

    BQ20Z95: SAFE & PFIN behaviour 0 Locked

    1159 views
    7 replies
    Latest over 8 years ago
    by Swaminathan Ramanathan75031
  • Answered

    TPS730: TPS73001 Cff and feedback resistor questions 0 Locked

    847 views
    3 replies
    Latest over 8 years ago
    by Ryan Eslinger
  • Answered

    UCC28950 unused terminal 0 Locked

    2526 views
    5 replies
    Latest over 8 years ago
    by Colin Gillmor
  • Answered

    TPS92515-Q1 with TPS92661-Q1 0 Locked

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    5 replies
    Latest over 8 years ago
    by Clinton Jensen
  • Suggested Answer

    CCS/BQ40Z50-R1: We do not arrive turne ON mosfet charge and décharge 0 Locked

    408 views
    2 replies
    Latest over 8 years ago
    by Emilien Chanteperdrix
  • Not Answered

    LM5121 Output Current. 0 Locked

    498 views
    3 replies
    Latest over 8 years ago
    by EricLee
  • Answered

    TPS53318: Datasheet Page 16 Equation 3 wrong? 0 Locked

    654 views
    2 replies
    Latest over 8 years ago
    by JohnTucker
  • Not Answered

    LM25576: Tantalum to Ceramic Considerations 0 Locked

    439 views
    2 replies
    Latest over 8 years ago
    by Dan Cristy
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    TPS53625: PVNN double pulse issue 0 Locked

    648 views
    0 replies
    Started over 8 years ago
    by Patrick Chen
  • Not Answered

    TPS53625: Dynamic decay issue 0 Locked

    441 views
    0 replies
    Started over 8 years ago
    by Patrick Chen
  • Answered

    LMR23630 / 24V_input hot power line connect 0 Locked

    2582 views
    12 replies
    Latest over 8 years ago
    by Luke Pan
  • Suggested Answer

    TL783: Wattage of R2 resistor 0 Locked

    1146 views
    3 replies
    Latest over 8 years ago
    by Ron Michallick
  • Suggested Answer

    TPS27081A: [TPS27081A] Inquiry of Ouput Voltage/Current 0 Locked

    1130 views
    2 replies
    Latest over 8 years ago
    by Ron Michallick
  • Answered

    TPS62140: TPS62140 - About Simultaneous Power down 0 Locked

    1027 views
    7 replies
    Latest over 8 years ago
    by Hide
  • Not Answered

    LM3409HVEVAL: Question regarding external PWM contol 0 Locked

    798 views
    6 replies
    Latest over 8 years ago
    by Rich Lobdill
  • Suggested Answer

    BQ24075T: bq24075T charge voltage accuracy at 0 to 45 degree C 0 Locked

    511 views
    3 replies
    Latest over 8 years ago
    by PAN-M
  • Not Answered

    BQ24616: Choosing Adapter Voltage 0 Locked

    464 views
    3 replies
    Latest over 8 years ago
    by David Wiest Jr
  • Not Answered

    BQ40Z60: bq40z60 charging very slowly 0 Locked

    287 views
    1 reply
    Latest over 8 years ago
    by Jim OSullivan
  • Suggested Answer

    BQ25504: Paralleling multiple BQ25504 0 Locked

    484 views
    1 reply
    Latest over 8 years ago
    by Jeff F
  • Not Answered

    LM3642: No output from LED pin when I program LM3642 to torch mode 0 Locked

    576 views
    3 replies
    Latest over 8 years ago
    by Greg Lubarsky
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