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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 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
  • [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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  • Answered

    UCD3138A64: PMBUS Command in romcode 0

    47 views
    5 replies
    Latest 2 days ago
    by Jonathan Wong
  • Suggested Answer

    UCD3138: UCD3138RJAR UV setting via PMBus 0

    35 views
    3 replies
    Latest 2 days ago
    by Jonathan Wong
  • Suggested Answer

    TPS4H160-Q1: TPS4H160AQPWPRQ1 0

    41 views
    4 replies
    Latest 2 days ago
    by Nicholas Petersilge
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    UCD3138128: UCD3138128 0

    23 views
    1 reply
    Latest 2 days ago
    by Jonathan Wong
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    TPS7H2201-SP: Equations in the datasheet may be not true for EN & OVP 0

    119 views
    11 replies
    Latest 2 days ago
    by Elizabeth Won
  • Answered

    TPS61169: TPS61169 SCH review 0

    42 views
    4 replies
    Latest 2 days ago
    by Andy Chen
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    TPS1H000-Q1: High side Switch with low current 0

    21 views
    1 reply
    Latest 2 days ago
    by Rishika Patel
  • Not Answered

    TPS922055: TPS922055 calculation tool Inductor Values 0

    20 views
    1 reply
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    by Andy Chen
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    TLC5916-Q1: Need technical info for LED driver 0

    20 views
    1 reply
    Latest 2 days ago
    by Andy Chen
  • Suggested Answer

    TLC5916-Q1: Regarding Safety Critical Tell tale drving fro ASILB Instrument cluster applciation 0

    133 views
    11 replies
    Latest 2 days ago
    by Andy Chen
  • Not Answered

    LP8869-Q1: LP8869QPWPRQ1 0

    12 views
    1 reply
    Latest 2 days ago
    by Andy Chen
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    LP5812: Offline Support Request 0

    24 views
    1 reply
    Latest 2 days ago
    by Andy Chen
  • Suggested Answer

    TPS6593-Q1: MPU cold reset(power re-supply) method with PMIC 0

    19 views
    1 reply
    Latest 2 days ago
    by Nicholas McNamara
  • Suggested Answer

    BQ25798BKUPEVM: BQ25798 IC is drawing approximately 300 mA by itself, and the IC is heating up abnormally. 0

    176 views
    14 replies
    Latest 2 days ago
    by Michael Bradbourne
  • Not Answered

    TPS7H4104-SEP: TPS7H4104-SEP is not available in webench 0

    18 views
    1 reply
    Latest 2 days ago
    by Elizabeth Won
  • Answered

    TPS4H160-Q1: 7.3.7.3 Protection for Loss of Power Supply 0

    78 views
    3 replies
    Latest 2 days ago
    by Nicholas Petersilge
  • Not Answered

    TPS25751: Can TPS25751D be used in a design that does not include a battery charger 0

    19 views
    1 reply
    Latest 2 days ago
    by Aya Khedr
  • Not Answered

    HD3SS3220: HD3SS3220 Link bring up Test TD7.01.2 problem 0

    40 views
    5 replies
    Latest 2 days ago
    by Ryan Kitto
  • Not Answered

    TPS23731: CP or PRSR pin damaged during experimentations 0

    152 views
    13 replies
    Latest 2 days ago
    by Diang Xing
  • Answered

    BQ79631-Q1: Daisy chain evaluation with a BQ79631-Q1 EVM 0

    34 views
    4 replies
    Latest 2 days ago
    by John Du
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