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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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  • Not Answered

    LP8867-Q1: Input Voltage above boost voltage 0

    18 views
    1 reply
    Latest 15 days ago
    by Andy Chen
  • Not Answered

    BQ27Z746: verify the default delay time of hardware protection of BQ27Z746. 0

    30 views
    2 replies
    Latest 15 days ago
    by kevin zhuang
  • Suggested Answer

    LM5069: LM5069: Over current protection and oscilliation of output 0

    66 views
    2 replies
    Latest 15 days ago
    by Kota Suzuki
  • Answered

    TPS4800-Q1: Separated VS power 0

    40 views
    2 replies
    Latest 15 days ago
    by UserN23
  • Not Answered

    BQ79600-Q1: BQ79600 is as base device (bridge) and how to wake up from stack device BQ79718 at OV/UV status 0

    109 views
    6 replies
    Latest 15 days ago
    by Josh Chen
  • Answered

    TPS546E25: Sequence for Applying External 5V Bias Power Supply 0

    30 views
    2 replies
    Latest 15 days ago
    by 歩 綿貫
  • Answered

    LM60440: Minimum Output Capacitance Requirement for a Fixed Load 0

    36 views
    1 reply
    Latest 15 days ago
    by Nassif Abi Jaoude
  • Not Answered

    BQ79616: HV Battery Design 0

    25 views
    1 reply
    Latest 15 days ago
    by John Du
  • Suggested Answer

    UCD9081: Pins I can use to detect programming state to enable some logic 0

    40 views
    3 replies
    Latest 15 days ago
    by yihe
  • Not Answered

    TPS7A14: I-Bias Spec 0

    92 views
    5 replies
    Latest 15 days ago
    by Vahnroy Hosear
  • Suggested Answer

    TPS48111Q1EVM: How to differentiate Overcurrent and Short Circuit faults 0

    43 views
    3 replies
    Latest 15 days ago
    by Rishika Patel
  • Suggested Answer

    BQ27Z746: Extract Golden image for accurate SOC without BQStudio and apply it to every device 0 Locked

    73 views
    5 replies
    Latest 15 days ago
    by Jonny
  • Suggested Answer

    LM72880-Q1: Sequence timing control 0

    50 views
    3 replies
    Latest 15 days ago
    by EricLee
  • Suggested Answer

    TPS7B86-Q1: Package Structure Diagram 0

    38 views
    1 reply
    Latest 15 days ago
    by Gregory Thompson
  • Answered

    BQ76952: BQ7695202PFBR 0

    149 views
    13 replies
    Latest 15 days ago
    by Rohin Nair
  • Suggested Answer

    BQ25883: Failure in IC after high current battery charging 0

    77 views
    5 replies
    Latest 15 days ago
    by Ning T
  • Suggested Answer

    BQ25895: Decrease ship mode current 0

    59 views
    2 replies
    Latest 15 days ago
    by Ning T
  • Suggested Answer

    BQ24259: BQ24259 shipping mode fail 0

    68 views
    4 replies
    Latest 15 days ago
    by Ning T
  • Suggested Answer

    LMZ31710: Regarding EMI filter at the output of LMZ31710 to handle switching noise. 0

    110 views
    3 replies
    Latest 15 days ago
    by Savith Kumar Rayakanti
  • Answered

    TPS2553: Current Limiting Lower than Expected 0

    79 views
    6 replies
    Latest 15 days ago
    by Adam Kus
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