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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

    TPS76701-EP: Confirmation of Operating/Abs Max Tj and Tshutdown 0 Locked

    279 views
    1 reply
    Latest over 5 years ago
    by Stephen Ziel
  • Answered

    LM34936: how to request/obtain EVAL PCB for LM34936; 0 Locked

    279 views
    1 reply
    Latest over 5 years ago
    by Garrett Roecker
  • Answered

    LM5143-Q1: 20ns transient value 0 Locked

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    2 replies
    Latest over 5 years ago
    by Frank De Stasi
  • Answered

    BQ76940: If I2C hang up , how to reset the I2C ? 0 Locked

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    Latest over 5 years ago
    by Matt Sunna
  • Suggested Answer

    TPS2121: tps2121 will restart under surging test 0 Locked

    529 views
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    by Andy Robles
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    TPS65094: Low temperature issue 0 Locked

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    10 replies
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  • Not Answered

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    318 views
    1 reply
    Latest over 5 years ago
    by Mamadou Diallo
  • Suggested Answer

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    by Jimmy Zhou95
  • Answered

    FUSION_DIGITAL_POWER_DESIGNER: Digital Fusion Power Designer Tool Older Version 0 Locked

    898 views
    5 replies
    Latest over 5 years ago
    by Qian Chen
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    LM25119: The ripple of the output current increases in a specific interval 0 Locked

    259 views
    1 reply
    Latest over 5 years ago
    by Qian Chen
  • Not Answered

    TPS2121: If INy is not selected during tSETy, can't we switch to IN2 anymore? 0 Locked

    255 views
    1 reply
    Latest over 5 years ago
    by Andy Robles
  • Answered

    TPS2662: TPS26621 - About Unused UVLO pin 0 Locked

    777 views
    2 replies
    Latest over 5 years ago
    by Hide
  • Suggested Answer

    BQ25896: Strange readings from REG0C Fault Register 0 Locked

    345 views
    4 replies
    Latest over 5 years ago
    by Jeff F
  • Suggested Answer

    TPS7A8101: Design for 4.5V 0 Locked

    282 views
    1 reply
    Latest over 5 years ago
    by JCHK
  • Answered

    TPS61021A: TPS61021A Large Ripple on the Output 0 Locked

    462 views
    12 replies
    Latest over 5 years ago
    by Helen chen
  • Answered

    BQ40Z50-R2: State Time 0 Locked

    102 views
    2 replies
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    by John Piccoli1
  • Answered

    BQ29209: BQ29209DRBR datacode 0 Locked

    282 views
    4 replies
    Latest over 5 years ago
    by Maria Chetverikova
  • Suggested Answer

    TPS2001D: Operating voltage of Vin of TPS2001d and TPS2065d 0 Locked

    346 views
    1 reply
    Latest over 5 years ago
    by Ziv Zhang
  • Answered

    UCC256302: Incorrect duty cycle in gate signal 0 Locked

    488 views
    8 replies
    Latest over 5 years ago
    by Eric Faraci
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