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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

    BQ24616_ CHARGE CURRENT OSCILLATION 0 Locked

    673 views
    1 reply
    Latest over 9 years ago
    by David Wiest Jr
  • Not Answered

    The GUI prompt an error occurred 0 Locked

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    by Amiel Hussain
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    LM3401 Clarification 0 Locked

    553 views
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    Latest over 9 years ago
    by Clinton Jensen
  • Suggested Answer

    TPS659122YFFT INPUT/OUTPUT CAPACITANCE 0 Locked

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    How BQ76PL536A-Q1 balancing process works? 0 Locked

    564 views
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    Latest over 9 years ago
    by Roger Hwang
  • Suggested Answer

    BQ24257 - Safety Timer not long enough, safe to disable it? 0 Locked

    509 views
    1 reply
    Latest over 9 years ago
    by Jeff F
  • Not Answered

    Wireless Receiver Not Providing Output Power 0 Locked

    2491 views
    11 replies
    Latest over 9 years ago
    by Crawford Leeds
  • Not Answered

    TPS40210 isolated flyback with synchronous rectification 0 Locked

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    2 replies
    Latest over 9 years ago
    by JohnTucker
  • Suggested Answer

    About the reference design : TIDA-00701 for 120W outputs using UCC28740 0 Locked

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    Latest over 9 years ago
    by Bernard Keogh
  • Not Answered

    bq24171: Icharge 0 Locked

    1692 views
    7 replies
    Latest over 9 years ago
    by David Wiest Jr
  • Not Answered

    UC2625 IC Classification 0 Locked

    632 views
    1 reply
    Latest over 9 years ago
    by Peter Meaney
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    BQ25505 Input Power Limitation 0 Locked

    201 views
    0 replies
    Started over 9 years ago
    by Maulik Patel
  • Not Answered

    UCC28700 would be the ideal low voltage flyback PWM chip for use in a 10-40VDC input power supply. Per Figure #1 of the data sheet, the chip will not turn on until Vdd exceeds 21 to 22V. How can turn on be decreased to 8V? Thanks, Barret Weekes 0 Locked

    444 views
    1 reply
    Latest over 9 years ago
    by Peter Meaney
  • Not Answered

    Power supply switching 0 Locked

    1019 views
    3 replies
    Latest over 9 years ago
    by Brett Barr1
  • Not Answered

    TPS7A33 and TPS7A47 Output Issues 0 Locked

    1744 views
    7 replies
    Latest over 9 years ago
    by Ed Fisher
  • Not Answered

    About measurement inverting power use step down converter 0 Locked

    651 views
    2 replies
    Latest over 9 years ago
    by Kuo Nowal
  • Not Answered

    BQ24133 / STAT Timing 0 Locked

    284 views
    0 replies
    Started over 9 years ago
    by Kuramochi Tadahiko
  • Not Answered

    Could LM3243 use 1uH inductor 0 Locked

    317 views
    0 replies
    Started over 9 years ago
    by Grant Wang84
  • Not Answered

    BQ24616_ FAST CHARGE TIMER WORKING PRINCIPLE AND VOLTAGE PROFILE ON TTC PIN 0 Locked

    282 views
    0 replies
    Started over 9 years ago
    by Rajesh Kaliyaperumal
  • Not Answered

    BQ27320:the capacity of battery display error 0 Locked

    3494 views
    9 replies
    Latest over 9 years ago
    by yunyu hua
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