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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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  • Not Answered

    BQ76942: About bq76942 COV protection issues 0

    113 views
    9 replies
    Latest 9 days ago
    by Rohin Nair
  • Not Answered

    BQ76972: Issue in the readings coming from the AFE. 0

    70 views
    3 replies
    Latest 9 days ago
    by SAI VARUN PENDELA
  • Answered

    BQ25303J: Problems charging with a smart charger 0

    27 views
    1 reply
    Latest 9 days ago
    by Garrett Kreger
  • Not Answered

    LM5116: LM5116 Buck Converter - Output Passes Input, No Switching, LO Mosfet Does Not Turn On 0

    84 views
    1 reply
    Latest 9 days ago
    by EricLee
  • Suggested Answer

    TPS92623-Q1: Paralleling Outputs 0

    33 views
    1 reply
    Latest 9 days ago
    by fhoude
  • Answered

    TPS3851: Tolerance of Minimum MR, SET1 pin pulse duration 0

    36 views
    1 reply
    Latest 9 days ago
    by Masoud Beheshti61
  • Suggested Answer

    BQ25890: the accurate battery level cannot be read during charging. 0

    151 views
    8 replies
    Latest 9 days ago
    by Ning T
  • Not Answered

    BQ40Z50-R1: How do you determine what Maximum Cell Balance Time Values to use? 0

    171 views
    10 replies
    Latest 9 days ago
    by Ken Cowan
  • Suggested Answer

    BQ25606EVM-772: BQ25606 used to charge a battery 0

    114 views
    16 replies
    Latest 9 days ago
    by Michael Emanuel35
  • Answered

    LMR51635: LMR51635YFDDCR 0

    123 views
    8 replies
    Latest 9 days ago
    by Ashutosh Shinde
  • Suggested Answer

    BQ25730: I2C broadcast behavior and demo code request 0

    20 views
    1 reply
    Latest 9 days ago
    by Christian Moyer
  • Suggested Answer

    BQ40Z50-R1: BQ40Z50-R1 0

    80 views
    7 replies
    Latest 9 days ago
    by Miguel Castro Gonzalez
  • Suggested Answer

    BQ4050: Cell Balancing 0

    68 views
    4 replies
    Latest 9 days ago
    by Miguel Castro Gonzalez
  • Suggested Answer

    UCC21550-Q1: Input power increase during VCC UV condition 0

    30 views
    1 reply
    Latest 9 days ago
    by Will Appelt
  • Suggested Answer

    BQ28Z610-R1: Methods to protect certain data during an image update 0

    26 views
    2 replies
    Latest 9 days ago
    by Diego
  • Suggested Answer

    TPS25763-Q1: USB-PD IC for Display Port Source - Power Sink 0

    36 views
    1 reply
    Latest 9 days ago
    by Eric Hartigan
  • Answered

    BQ25672: BQ25672 Reregulation VSYS 0

    91 views
    7 replies
    Latest 9 days ago
    by Jeff F
  • Answered

    BQ25856-Q1: Quiescent current 0

    33 views
    1 reply
    Latest 9 days ago
    by Michael Bradbourne
  • Not Answered

    TPS23861: Multiple Device failures 0

    59 views
    6 replies
    Latest 9 days ago
    by Anagha Jagannath
  • Not Answered

    BQ40Z50: SHA1 encryption protocol has an inconsistency issue between the Digest value returned by the BQ40Z50 and the chip's return value 0

    32 views
    1 reply
    Latest 9 days ago
    by Alan Frias
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