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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

    BQ27426: Failing to set TEMPS 0 Locked

    362 views
    1 reply
    Latest over 8 years ago
    by Dominik Hartl11
  • Answered

    BQ27220: Learning/Accuracy after Dead Battery Scenario 0 Locked

    845 views
    1 reply
    Latest over 8 years ago
    by Onyx Ahiakwo
  • Suggested Answer

    bq76PL536A: maximum current for cells using this battery monitor 0 Locked

    453 views
    1 reply
    Latest over 8 years ago
    by David Wiest Jr
  • Suggested Answer

    LM25011: startup problem with (precharged) load capacitor 0 Locked

    2424 views
    10 replies
    Latest over 8 years ago
    by Arief Hernadi
  • Not Answered

    BQ35100: CHEM ID, Timing 0 Locked

    997 views
    1 reply
    Latest over 8 years ago
    by Onyx Ahiakwo
  • Suggested Answer

    TPS650830: Confusion over switching frequency spec for VR3 and VR5. 0 Locked

    1277 views
    5 replies
    Latest over 8 years ago
    by Jayanth Kruttiventi
  • Suggested Answer

    LM2611: The calculation method of component values about LM2611 0 Locked

    658 views
    1 reply
    Latest over 8 years ago
    by Youhao Xi
  • Not Answered

    TPS549A20: MODE pin tied to VREG through 0ohms... 0 Locked

    1651 views
    9 replies
    Latest over 8 years ago
    by JohnTucker
  • Not Answered

    BQ24196: BQ24196 0 Locked

    497 views
    1 reply
    Latest over 8 years ago
    by Joel Hernandez II
  • Suggested Answer

    TPS53319EVM Output Voltage 0 Locked

    1007 views
    7 replies
    Latest over 8 years ago
    by JohnTucker
  • Suggested Answer

    TPS53355: About maximum value of output current 0 Locked

    1436 views
    6 replies
    Latest over 8 years ago
    by JohnTucker
  • Suggested Answer

    LM2665: Supporting measurement 0 Locked

    478 views
    1 reply
    Latest over 8 years ago
    by Youhao Xi
  • Not Answered

    BQ25890: BQ25890 Vsys isn't right 0 Locked

    510 views
    1 reply
    Latest over 8 years ago
    by Jeff F
  • Answered

    BQ76930: BQ76930 CELLBAL1 & CELLBAL2 register 0 Locked

    612 views
    1 reply
    Latest over 8 years ago
    by Vish Nadarajah
  • Suggested Answer

    About device information before mass production. 0 Locked

    515 views
    1 reply
    Latest over 8 years ago
    by Ryan Eslinger
  • Suggested Answer

    CCS/UCD3138A: How to configure the linker's stack size and heap size 0 Locked

    1581 views
    2 replies
    Latest over 8 years ago
    by Ian Bower
  • Answered

    BQ25600: BQ25600 EVM 0 Locked

    600 views
    1 reply
    Latest over 8 years ago
    by Joel Hernandez II
  • Not Answered

    LM3881: LM3881 flag voltage and VCC 0 Locked

    942 views
    1 reply
    Latest over 8 years ago
    by Brad
  • Not Answered

    LM3414: problem in led dimming with moonlight effect 0 Locked

    1241 views
    4 replies
    Latest over 8 years ago
    by Irwin Nederbragt
  • Answered

    TPS782: Applying voltage to LDO output when LDO input floating 0 Locked

    2864 views
    4 replies
    Latest over 8 years ago
    by Haidar Hamoo
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