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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

    TPS54260-Q1: Cannot find the worksheet for TPS54260 Q1 calculation 0 Locked

    566 views
    2 replies
    Latest over 8 years ago
    by Ajeya Anand
  • Answered

    BQ24780S: Current limit characteristics 0 Locked

    585 views
    5 replies
    Latest over 8 years ago
    by Wang5577
  • Suggested Answer

    TPS92515HVEVM-749: Simulation Vs. Implementation 0 Locked

    1290 views
    3 replies
    Latest over 8 years ago
    by Clinton Jensen
  • Not Answered

    BQ24650: Battery connected to bq24650 in not charging 0 Locked

    48295 views
    90 replies
    Latest over 8 years ago
    by Ann_Lien
  • Suggested Answer

    BQ76940: Vibrational Test Data 0 Locked

    277 views
    1 reply
    Latest over 8 years ago
    by Vish Nadarajah
  • Answered

    UCC27524: Power Dissipation & Output Capacitance 0 Locked

    738 views
    3 replies
    Latest over 8 years ago
    by Mateo Begue
  • Answered

    LM5060: LM5060 / Input current oscillation during start up 0 Locked

    3862 views
    9 replies
    Latest over 8 years ago
    by S.Satoshi
  • Suggested Answer

    BQ51013B: Charge Current Low 0 Locked

    3255 views
    9 replies
    Latest over 8 years ago
    by Fabien LETORT
  • Answered

    BQ24064: Does it have trickle charge function? 0 Locked

    355 views
    1 reply
    Latest over 8 years ago
    by Diana Bodenmiller
  • Answered

    UCC28180EVM-573: UCC28180EVM-573 Operating below the input voltage range with VCC turned-on 0 Locked

    652 views
    2 replies
    Latest over 8 years ago
    by Ian Cumming66
  • Answered

    TPS62140A: About Soft Start Capacitor calculation formula 0 Locked

    2623 views
    1 reply
    Latest over 8 years ago
    by Chris Glaser
  • Suggested Answer

    UCC28180: UCC28180 PFC : distorsion of the PFC coil current 0 Locked

    3784 views
    8 replies
    Latest over 8 years ago
    by didier Pierrejean
  • Not Answered

    Input the DC voltage to PFC 0 Locked

    626 views
    2 replies
    Latest over 8 years ago
    by John Griffin1
  • Suggested Answer

    LM5023: LM5023 have any derived part for use? 0 Locked

    998 views
    5 replies
    Latest over 8 years ago
    by John Stevens
  • Answered

    TPS53515: About Vbst pin 0 Locked

    1888 views
    6 replies
    Latest over 8 years ago
    by JohnTucker
  • Not Answered

    TPS61200: 1.5V boost LED driver 0 Locked

    323 views
    1 reply
    Latest over 8 years ago
    by Jasper Li
  • Answered

    BQ76930: REGOUT issue 0 Locked

    921 views
    3 replies
    Latest over 8 years ago
    by Akilan G
  • Suggested Answer

    BQ34Z100: Bad read of current in HDQ mode 0 Locked

    477 views
    2 replies
    Latest over 8 years ago
    by martin gibbs
  • Not Answered

    TPS563210A: About soft start calculation 0 Locked

    489 views
    3 replies
    Latest over 8 years ago
    by Yuchang Zhang
  • Answered

    WEBENCH® Tools/TPS54336A: How can I get webbench to simulate startup for longer than 5msec? 0 Locked

    585 views
    2 replies
    Latest over 8 years ago
    by David Burton
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