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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 1 year 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

    TPS659037: Startup with internal RC oscillator 0 Locked

    667 views
    7 replies
    Latest over 6 years ago
    by Hiroshi Sato98
  • Suggested Answer

    TPS542941: PGND hook up and output ground via spacing 0 Locked

    613 views
    3 replies
    Latest over 6 years ago
    by Sam(MPAA) Zhang
  • Suggested Answer

    TLV1117LV: Please verifiy the IC markings 0 Locked

    289 views
    1 reply
    Latest over 6 years ago
    by Eric.Preiss
  • Answered

    BQ40Z50-R2: Impedance track golden pack: do Learning Cycle or Temperature Optimisation first? 0 Locked

    488 views
    2 replies
    Latest over 6 years ago
    by Jonathan Bradshaw98
  • Answered

    TPS63050: TPS63050 FB Question. 0 Locked

    648 views
    4 replies
    Latest over 6 years ago
    by Milos
  • Suggested Answer

    BQ76PL455A: BQ76PL455 acquisition problem 0 Locked

    597 views
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    by Sherry Liang
  • Answered

    TPS54240: Vref Accuracy 0 Locked

    303 views
    1 reply
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  • Suggested Answer

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    2 replies
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    by Rakesh
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    359 views
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    653 views
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    by Sherry Liang
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    TPS82085: plating information: What is the gold thickness 0 Locked

    449 views
    2 replies
    Latest over 6 years ago
    by Shai Berman
  • Suggested Answer

    BQ40Z50: I2C communication 0 Locked

    2866 views
    2 replies
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    by Swaminathan Ramanathan75031
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    BQ40Z50-R2: down gradning to bq40z50 0 Locked

    298 views
    1 reply
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    by Swaminathan Ramanathan75031
  • Suggested Answer

    LP5018: 1. PWM frequency? 2. Use of single colour LEDs 0 Locked

    406 views
    1 reply
    Latest over 6 years ago
    by Kenneth Du
  • Answered

    TPS61085-Q1: TPS61085 Error Amplifier Output Impedance 0 Locked

    415 views
    3 replies
    Latest over 6 years ago
    by Helen chen
  • Suggested Answer

    TPS55160-Q1: ISO7637 test data 0 Locked

    390 views
    2 replies
    Latest over 6 years ago
    by Helen chen
  • Answered

    TPS61086: The reason Vout should 0.5V higher than Vin. 0 Locked

    506 views
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    Latest over 6 years ago
    by Helen chen
  • Answered

    UC3843: UC3843-based flyback circuit exhibits unstable duty cycle 0 Locked

    4378 views
    10 replies
    Latest over 6 years ago
    by zoujiangyilang
  • Answered

    LM25117: Fet turn on 0 Locked

    438 views
    6 replies
    Latest over 6 years ago
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    Solar charger circuit for 6 to 24V solar panel to get 5V output and have a lithium battery backup. 0 Locked

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    by Ning T
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