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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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View FAQ threads
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  • Answered

    LM76202-Q1: Safety document / Pin FMEA 0

    35 views
    2 replies
    Latest 4 days ago
    by Sajid Afaque
  • Suggested Answer

    TPS55288: TINA-TI model 0

    20 views
    1 reply
    Latest 4 days ago
    by Bryce Xun
  • Answered

    LM5137F-Q1-EVM12V: FB1 Resistor Divider 0

    23 views
    1 reply
    Latest 4 days ago
    by Timothy Hegarty
  • Suggested Answer

    BQ25703A: No high-level output of the HIDRV1 pin 0

    22 views
    1 reply
    Latest 4 days ago
    by Tiger Zhou
  • Suggested Answer

    BQ25820: Input voltage is getting stuck when AC is removed 0

    133 views
    14 replies
    Latest 4 days ago
    by Christian Moyer
  • Suggested Answer

    TPS22992: Charge Pump 0

    21 views
    1 reply
    Latest 4 days ago
    by Rakesh
  • Not Answered

    TPS61022: TPS61022 0

    21 views
    1 reply
    Latest 4 days ago
    by Aurora Tie
  • Suggested Answer

    TPS61185: replace the LT1618 0

    25 views
    1 reply
    Latest 4 days ago
    by Colin Chen
  • Not Answered

    TPS2117: Asymetric behaviour between Vin1 and Vin2 0

    28 views
    1 reply
    Latest 4 days ago
    by Rakesh
  • Suggested Answer

    BQ4050: Abnormal detection of charging current 0

    87 views
    6 replies
    Latest 4 days ago
    by Zilin Yang
  • Answered

    LP5868: Unexpected turn-on when disable Down_Deghost 0

    77 views
    7 replies
    Latest 4 days ago
    by Felix Wang
  • Not Answered

    LM3435: I2C communication after power-on/enable 0

    52 views
    3 replies
    Latest 4 days ago
    by Felix Wang
  • Not Answered

    LP5861TEVM: Color cannot be changed via the GUI. 0

    144 views
    13 replies
    Latest 4 days ago
    by Felix Wang
  • Suggested Answer

    TPS7A52: Do we have low drop out voltage LDO without bias pin? 0

    19 views
    1 reply
    Latest 4 days ago
    by Ishaan Shetye
  • Not Answered

    TPS7B87-Q1: Damaged TPS7B8750-Q1 0

    43 views
    3 replies
    Latest 4 days ago
    by Vahnroy Hosear
  • Suggested Answer

    BQ40Z50-R2: Recommended way to program 0

    28 views
    2 replies
    Latest 4 days ago
    by Miguel Castro Gonzalez
  • Suggested Answer

    ATL432LI-Q1: Vref accuracy calculation 0

    23 views
    1 reply
    Latest 4 days ago
    by Joshua Garcia
  • Suggested Answer

    TPS74801: Suspicious components MPN TPS74801QRGWRQ1 0

    41 views
    2 replies
    Latest 4 days ago
    by Vahnroy Hosear
  • Not Answered

    BQ4050: Inquiry about the pull-up details of the pins on BQ4050-DISP. 0

    54 views
    3 replies
    Latest 4 days ago
    by Miguel Castro Gonzalez
  • Answered

    TPS7H2201-SP: Equations in the datasheet may be not true for EN & OVP 0

    165 views
    14 replies
    Latest 4 days ago
    by Elizabeth Won
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