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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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  • Not Answered

    BQ27750EVM-837: Regognized in Battery Studio but no .bgz file 0 Locked

    1135 views
    1 reply
    Latest over 8 years ago
    by Onyx Ahiakwo
  • Not Answered

    bq27541: bq27541 v1.04 software and firmware 0 Locked

    788 views
    1 reply
    Latest over 8 years ago
    by Onyx Ahiakwo
  • Answered

    BQ20Z40-R1: Static Chem DF Signature Consistency 0 Locked

    1003 views
    4 replies
    Latest over 8 years ago
    by Steve Patterson
  • Not Answered

    TINA/Spice/LM317L-N: Does a model in spice/TINA or webbench exist for the LM317L-N ? 0 Locked

    863 views
    1 reply
    Latest over 8 years ago
    by Ryan Eslinger
  • Answered

    BQ40Z50-R1: bqStudio Battery Status Info on Dashboard 0 Locked

    603 views
    1 reply
    Latest over 8 years ago
    by Onyx Ahiakwo
  • Not Answered

    TPS65921: Noise on digital lines 0 Locked

    750 views
    2 replies
    Latest over 8 years ago
    by Kevin LaRosa
  • Suggested Answer

    UC3825A: Current Limit, Soft Start, and Clock Modifications 0 Locked

    1469 views
    5 replies
    Latest over 8 years ago
    by Wangxin Huang
  • Not Answered

    UCC28950: using UCC28950 for Sepic function 0 Locked

    672 views
    2 replies
    Latest over 8 years ago
    by Johnson Pi
  • Suggested Answer

    LM5045: Mosfet driver 0 Locked

    1027 views
    3 replies
    Latest over 8 years ago
    by Wangxin Huang
  • Answered

    TPS23753AEVM-001: substitution of flyback diode 0 Locked

    716 views
    1 reply
    Latest over 8 years ago
    by Darwin Fernandez
  • Not Answered

    CCS/BQ76920: how do I get the charging and discharging state by reading the CC_Register of Bq76920 0 Locked

    789 views
    1 reply
    Latest over 8 years ago
    by Vish Nadarajah
  • Not Answered

    Can I output positive and negative voltages from power supply (csi5003xe)? 0 Locked

    1995 views
    2 replies
    Latest over 8 years ago
    by jQ
  • Not Answered

    BQ27GDK000EVM: Auto cycle issue 0 Locked

    423 views
    1 reply
    Latest over 8 years ago
    by Onyx Ahiakwo
  • Suggested Answer

    BQ25890: Parameters between Fuel Gauge and Charger. 0 Locked

    1006 views
    3 replies
    Latest over 8 years ago
    by Jeff F
  • Not Answered

    TPS62143: TPS62143 dies in field for unknown reason 0 Locked

    2739 views
    9 replies
    Latest over 8 years ago
    by Chris Glaser
  • Suggested Answer

    TPS7B67-Q1: How to connect DLY and RST if not used 0 Locked

    455 views
    1 reply
    Latest over 8 years ago
    by Haidar Hamoo
  • Answered

    TPS55330: TPS55330 Fails to 54 Volts Boost from 12V input 0 Locked

    1594 views
    4 replies
    Latest over 8 years ago
    by Garrett B B
  • Answered

    BQ76940EVM: Load Detection 0 Locked

    1745 views
    7 replies
    Latest over 8 years ago
    by Mauro Basquera
  • Answered

    4.87W LED MR16 for electronic transformer 0 Locked

    982 views
    3 replies
    Latest over 8 years ago
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  • Answered

    TL431A: Stable area on the data sheet P16 0 Locked

    688 views
    1 reply
    Latest over 8 years ago
    by Marcoo Z
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