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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

    BQ40Z50-R1: How to improve when the health level of BQ40Z50 is low? 0

    10 views
    1 reply
    Latest 14 hours ago
    by Alan Frias
  • Not Answered

    BQ40Z50-R1: BQ40Z50 R1 discharged to 0% cannot be charged 0

    14 views
    1 reply
    Latest 14 hours ago
    by Alan Frias
  • Not Answered

    BQ78Z100: CHG and DSG FETs not enabling or disabling from BQStudio 0

    19 views
    1 reply
    Latest 14 hours ago
    by Alan Frias
  • Not Answered

    TPS40090: Interleaved buck boost converter using TPS40090 0

    27 views
    3 replies
    Latest 15 hours ago
    by Mahmoud Harmouch
  • Suggested Answer

    LP87524J-Q1: Question about timing diagram 0

    112 views
    11 replies
    Latest 15 hours ago
    by Ishtiaque Panhwar
  • Not Answered

    BQ25170: Status and PG pin behavior during charger disabled. 0

    49 views
    6 replies
    Latest 15 hours ago
    by Bill Johns
  • Not Answered

    TPS770: Details from upcoming datasheet revision 0

    42 views
    4 replies
    Latest 15 hours ago
    by Rohit Phogat1
  • Not Answered

    TPS62A04B: The switch frequency goes to much higher during 0.5A-1.2A output current 0

    131 views
    11 replies
    Latest 15 hours ago
    by Muhammad Zakir Baig
  • Suggested Answer

    TPS26750: 4CC "GPPI" example 0

    28 views
    2 replies
    Latest 15 hours ago
    by Eli Brantingham
  • Suggested Answer

    TLVM13630: Difference of behavior between TPSM and TLVM 0

    17 views
    2 replies
    Latest 16 hours ago
    by Ryuuichi machida
  • Not Answered

    TPS56C215: I2C control Vout solution 0

    18 views
    1 reply
    Latest 16 hours ago
    by Amod Vaze
  • Suggested Answer

    CSD19538Q2: CSD19538Q2 LAYOUT footprint dimension 0

    26 views
    3 replies
    Latest 16 hours ago
    by John Wallace1
  • Not Answered

    TPS2HCS08-Q1: About LPM 0

    6 views
    0 replies
    Started 16 hours ago
    by Leo Ma
  • Not Answered

    TPS23861: The design issue for TPS23861 0

    26 views
    2 replies
    Latest 16 hours ago
    by Zhang Liang
  • Not Answered

    LM5185-Q1: Flyback can not work as designed 0

    153 views
    16 replies
    Latest 16 hours ago
    by Shinu.V.Mathew
  • Not Answered

    LMR43620-Q1: LMR43620RS5QRPERQ1 0

    7 views
    1 reply
    Latest 17 hours ago
    by Pramanik Patel
  • Not Answered

    TPS27S100: Inrush current is shutting TPS27S100 0

    25 views
    3 replies
    Latest 17 hours ago
    by Hernando Angulo
  • Not Answered

    LMR43610-Q1: LMR43610RS3QRPERQ1 0

    14 views
    1 reply
    Latest 17 hours ago
    by Pramanik Patel
  • Not Answered

    TPS54538: 5V Raspberry Pi power cycling 0

    32 views
    2 replies
    Latest 17 hours ago
    by Hitesh Chandwani
  • Suggested Answer

    LM74502: Minimizing Delay Between VEN Activation and Gate Voltage Rise 0

    54 views
    8 replies
    Latest 17 hours ago
    by Shiven Dhir
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