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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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  • Answered

    BQ25882: Vsys drop during transition to the supplement mode 0 Locked

    224 views
    2 replies
    Latest over 6 years ago
    by Shinya Sawamoto
  • Answered

    BQ25601: withstand voltage of 0.047 uF between BTST and SW 0 Locked

    291 views
    2 replies
    Latest over 6 years ago
    by user4369354
  • Suggested Answer

    TPS61088-Q1:TPS61088-Q1 Problem 0 Locked

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    1 reply
    Latest over 6 years ago
    by Helen chen
  • Answered

    TPS62175: Hot plugging boards with this part to 24v line may burn out: never on 12v line 0 Locked

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    7 replies
    Latest over 6 years ago
    by Chris Glaser
  • Answered

    LM3488: LM3488 What is the difference with LM3478? 0 Locked

    1487 views
    3 replies
    Latest over 6 years ago
    by Andrey Yakimov
  • Answered

    BQ76PL455A-Q1: Single device write with response 0 Locked

    477 views
    4 replies
    Latest over 6 years ago
    by Nick Hartley
  • Answered

    TPS54327: TPS54327, adding current feedback feature 0 Locked

    445 views
    3 replies
    Latest over 6 years ago
    by Iven Su
  • Suggested Answer

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    1164 views
    4 replies
    Latest over 6 years ago
    by Praveen GD
  • Answered

    UCC28700: Is it fine if we connect load on both output windings (auxiliary winding and main winding) of flyback transformer(UCC28700). actually we tried same but found that with load on main winding circuit is working fine but when we connect load on auxi 0 Locked

    448 views
    5 replies
    Latest over 6 years ago
    by SUDHANSHU TELRADHE
  • Suggested Answer

    TPS61021A: TPS61021A 0 Locked

    423 views
    2 replies
    Latest over 6 years ago
    by Helen chen
  • Suggested Answer

    TPS61021A: Layout for input capacitor and inductor 0 Locked

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

    LM27762: Figure 6 on data sheet seems strange, and apparently contradicts Figure 8? Does positive output voltage really go up with load current, over most of the input voltage range? 0 Locked

    270 views
    3 replies
    Latest over 6 years ago
    by Chris Glaser
  • Answered

    Linux/TPS25221: ILIM pin Short Circuit Protection 0 Locked

    325 views
    2 replies
    Latest over 6 years ago
    by Kevin-Cheng
  • Suggested Answer

    UCC21520-Q1: Isolation Test 0 Locked

    379 views
    1 reply
    Latest over 6 years ago
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  • Not Answered

    WEBENCH® Tools/LM5118: Design tools have been used 0 Locked

    373 views
    5 replies
    Latest over 6 years ago
    by Garrett Roecker
  • Suggested Answer

    BQ25890: Why suddenly into HIZ mode 0 Locked

    799 views
    3 replies
    Latest over 6 years ago
    by Ning T
  • Answered

    LM5023: Can't capture the first gate turn on pulse on an LM5023 0 Locked

    260 views
    2 replies
    Latest over 6 years ago
    by Simon Bourguigne
  • Answered

    CSD97394Q4M: Used as BLDC. 0 Locked

    779 views
    6 replies
    Latest over 6 years ago
    by Jose Ochoa
  • Answered

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    230 views
    1 reply
    Latest over 6 years ago
    by Ambreesh Tripathi
  • Suggested Answer

    UCD3138A: change filter parameters while power on 0 Locked

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