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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

    BQ40Z50: BQ40Z50 bqstudio data memory voltage setting 0 Locked

    230 views
    2 replies
    Latest over 1 year ago
    by Zheng Tao
  • Answered

    LM25184: LM25184NGUR 0 Locked

    633 views
    9 replies
    Latest over 1 year ago
    by Mubashir Alam
  • Answered

    [FAQ] REF35: When do I need a reference buffer for my ADC? 0 Locked

    1171 views
    1 reply
    Latest over 1 year ago
    by Jackson Wightman
  • Not Answered

    BQ25756: BQ25756 0 Locked

    821 views
    14 replies
    Latest over 1 year ago
    by Ethan Galloway
  • Answered

    UCC21756-Q1: Can we connect FLT and RST together to go for global shutoff 0 Locked

    308 views
    1 reply
    Latest over 1 year ago
    by Sasikala Thangam
  • Suggested Answer

    BQ27542EVM: BQ27542 lifetime data update 0 Locked

    212 views
    1 reply
    Latest over 1 year ago
    by Adrian
  • Suggested Answer

    BQ27Z561-R2: Learning Cycle Query 0 Locked

    213 views
    3 replies
    Latest over 1 year ago
    by Adrian
  • Suggested Answer

    TPS2373: Changes required between TPS2373-3RGWR and TPS2373-4RGWR 0 Locked

    233 views
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    by Diang Xing
  • Suggested Answer

    BQ79656EVM-021: PARTID IS WRONG 0 Locked

    440 views
    9 replies
    Latest over 1 year ago
    by David Ray
  • Suggested Answer

    TPS65987D: TPS65987D 0 Locked

    159 views
    1 reply
    Latest over 1 year ago
    by Chris Sterzik
  • Answered

    TPSM63606: Maximum output voltage 0 Locked

    249 views
    4 replies
    Latest over 1 year ago
    by Graeme Parker
  • Answered

    BQ40Z50: BQ40Z50 can't charge after under voltage 0 Locked

    355 views
    13 replies
    Latest over 1 year ago
    by Anthony
  • Answered

    BQ76972: Can't see BQ76972 in BatteryManagementStudio 0 Locked

    711 views
    12 replies
    Latest over 1 year ago
    by Luis H. S.
  • Not Answered

    BQ29209: BQ29209 Faul Condition. 23.8mA current flowing through VC1 Pin2. 0 Locked

    261 views
    3 replies
    Latest over 1 year ago
    by Luis H. S.
  • Answered

    LMR66430: spec check 0 Locked

    225 views
    1 reply
    Latest over 1 year ago
    by Andrew Kutzler
  • Suggested Answer

    BQ27427: NTC Curve Generation 0 Locked

    465 views
    10 replies
    Latest over 1 year ago
    by Jonny
  • Suggested Answer

    BQ28Z610-R1: The accuracy error between the actual cell voltage and VC1 and VC2. 0 Locked

    462 views
    9 replies
    Latest over 1 year ago
    by Diego
  • Not Answered

    BQ4050: Coulomb Counting of Low Discharge Current 0 Locked

    536 views
    5 replies
    Latest over 1 year ago
    by Anthony
  • Not Answered

    BQ40Z50: Read / Write using MCP2221 SMBus command manipulation. 0 Locked

    493 views
    1 reply
    Latest over 1 year ago
    by Anthony
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    TL783: constant current circuit using TL783. 0 Locked

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