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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 Function Safety documents for TPS65033xx-Q1 devices?

    Phil Yi
    Phil Yi
    Part Number: TPS650330-Q1 The Function Safety documents are on TI MySecure folder. Customers can request access from the link below: https://www.ti.com/licreg/docs/swlicexportcontrol.tsp?form_id=302189&prod_no=TPS65033X-Q1_FUNCTIONAL_SAFETY_DOCS&ref_url…
    • over 2 years ago
    • Power management
    • Power management forum
  • [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
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View FAQ threads
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  • Answered

    TPSM863252: Is PG active low or active high logic, i.e. does it pull low WHILE power is good or UNTIL power is good? 0 Locked

    460 views
    2 replies
    Latest over 1 year ago
    by Ryan Rutledge57
  • Suggested Answer

    BQ76907: BQ76907 0 Locked

    309 views
    1 reply
    Latest over 1 year ago
    by Luis H. S.
  • Suggested Answer

    TPS65251-3: The load transient test condition clarify (the slope rate of the load change us/A) 0 Locked

    260 views
    2 replies
    Latest over 1 year ago
    by Lucia Gao
  • Not Answered

    TPS65131-Q1: Circuit review 0 Locked

    305 views
    3 replies
    Latest over 1 year ago
    by Patrick Yao
  • Not Answered

    LM5171-Q1: 4-Switch configuration for bidirectional buck boost control 0 Locked

    550 views
    4 replies
    Latest over 1 year ago
    by Jeffrey Chung1
  • Answered

    LM25005: Could it be incorrect? The Webench design of LM25005 when it is used as an inverting-buck-boost converter 0 Locked

    271 views
    2 replies
    Latest over 1 year ago
    by liu_yong
  • Answered

    LMQ66430: Switchng frequency reduction 0 Locked

    289 views
    4 replies
    Latest over 1 year ago
    by shinichi miyano
  • Answered

    LM74930-Q1: 24V batteries polarity inversion protection and battery charger 0 Locked

    1189 views
    8 replies
    Latest over 1 year ago
    by Federico Battaglin
  • Suggested Answer

    ATL431: Field Return Failures of ATL431AQ used in over-voltage protection circuit 0 Locked

    589 views
    13 replies
    Latest over 1 year ago
    by Joshua Garcia
  • Answered

    BQ25713EVM-017: EVB Altium files 0 Locked

    313 views
    1 reply
    Latest over 1 year ago
    by Tiger Zhou
  • Not Answered

    BQ40Z50: Regarding Ra table is not updating during learning cycle. 0 Locked

    611 views
    3 replies
    Latest over 1 year ago
    by Adrian
  • Answered

    UCC27282-Q1: Power dissipation estimate and simulation results do not agree 0 Locked

    318 views
    4 replies
    Latest over 1 year ago
    by Jennifer Stander
  • Suggested Answer

    TPSM843B22E: wire bond material 0 Locked

    242 views
    1 reply
    Latest over 1 year ago
    by Ryan Chen
  • Suggested Answer

    BQ76952: Relationship of pack voltage and stack voltage during cell over voltage 0 Locked

    387 views
    1 reply
    Latest over 1 year ago
    by Thomas Rainey
  • Not Answered

    BQ40Z50-R1: Read 0x53 and 0x54 0 Locked

    377 views
    3 replies
    Latest over 1 year ago
    by Anthony
  • Suggested Answer

    TPS3422: Looking for a push-button controller 0 Locked

    351 views
    1 reply
    Latest over 1 year ago
    by Jesse Villanueva
  • Answered

    UCC256404: UCC256404:UCC25640X LLC Loop Plot & Load Transient Validation & Tuning Tool 0 Locked

    326 views
    3 replies
    Latest over 1 year ago
    by Manikanta Pallantla
  • Answered

    BQ34Z100-R2: BQ34Z100EVM autodetect on BQStudio 0 Locked

    336 views
    3 replies
    Latest over 1 year ago
    by Siddharth Venkatesan
  • Answered

    UCC39002: Connection check 0 Locked

    384 views
    2 replies
    Latest over 1 year ago
    by Jonathan Wong
  • Suggested Answer

    TPS25751: TPS25751 - Interrupt Event for I2C1 Interrupt Event for I2C1 register 14h 0 Locked

    306 views
    2 replies
    Latest over 1 year ago
    by Aya Khedr
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