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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

    LM3409: Unexpected short PMOS gate pulse after UVLO recovery 0 Locked

    457 views
    2 replies
    Latest over 4 years ago
    by David Naviaux
  • Not Answered

    TPS1HB35-Q1: PWM control-- what is the frequency range 0 Locked

    260 views
    1 reply
    Latest over 4 years ago
    by dimitri james
  • Answered

    TPS7A66-Q1: Enable / disable timing specs 0 Locked

    225 views
    1 reply
    Latest over 4 years ago
    by Jason Song
  • Suggested Answer

    TPS40057: Reference Circuit 0 Locked

    234 views
    1 reply
    Latest over 4 years ago
    by Timothy Hegarty
  • Suggested Answer

    BQ77905: Does connecting a charger reset the UV when load removal recovery mode is used? 0 Locked

    246 views
    1 reply
    Latest over 4 years ago
    by WM5295
  • Answered

    BQ78350-R1: BQ78350-R1 firmware update 0 Locked

    457 views
    1 reply
    Latest over 4 years ago
    by Matt Sunna
  • Suggested Answer

    BQ76952: Current Calculation from raw ADC 0 Locked

    397 views
    1 reply
    Latest over 4 years ago
    by Matt Sunna
  • Answered

    TPS709: TPS70915 specification/availability 0 Locked

    260 views
    1 reply
    Latest over 4 years ago
    by Jason Song
  • Suggested Answer

    TPS23754: Lan transformer connection of EVM 0 Locked

    1424 views
    1 reply
    Latest over 4 years ago
    by Michael Pahl
  • Answered

    TPS2373: How does LLDP tie into the design of the TPS2373 controller? 0 Locked

    1163 views
    5 replies
    Latest over 4 years ago
    by Michael Pahl
  • Answered

    LM46001: Light load efficiency appears higher at 500KHz than at 200KHz. 0 Locked

    396 views
    4 replies
    Latest over 4 years ago
    by Dave Cooper
  • Answered

    LM5117: Unable to output much current 0 Locked

    896 views
    6 replies
    Latest over 4 years ago
    by Timothy Hegarty
  • Answered

    LM7310: Two Devices, Active ORing Configuration for small capacitive load 0 Locked

    388 views
    1 reply
    Latest over 4 years ago
    by Kunal Goel
  • Answered

    BQ25883: Reason for 100 ohms resistor 0 Locked

    595 views
    3 replies
    Latest over 4 years ago
    by Ricardo
  • Suggested Answer

    LMZ21701SILR SGS report 0 Locked

    155 views
    2 replies
    Latest over 4 years ago
    by Jean Picard
  • Answered

    TPS62420: Need recommendation for DC-DC component to be used on our board 0 Locked

    783 views
    12 replies
    Latest over 4 years ago
    by Shriram Moharil
  • Answered

    UCC21520: Coefficient of Thermal Expansion? 0 Locked

    395 views
    8 replies
    Latest over 4 years ago
    by Nico Lucchese
  • Answered

    TPS62152: ABS of SW-terminal 0 Locked

    302 views
    1 reply
    Latest over 4 years ago
    by Matthew Murdock
  • Suggested Answer

    TPS3839: TPS3839 with load working abnormally 0 Locked

    745 views
    3 replies
    Latest over 4 years ago
    by Ben C
  • Answered

    PTV08T250W: Dimension 0 Locked

    225 views
    1 reply
    Latest over 4 years ago
    by Kris F
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