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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

    TPS61378-Q1: TPS61378-Q1 0 Locked

    433 views
    9 replies
    Latest over 1 year ago
    by Srijesh Kumar
  • Answered

    LP5036: Some question about the datasheet 0 Locked

    248 views
    1 reply
    Latest over 1 year ago
    by Jared Zhou
  • Suggested Answer

    TPS92633-Q1: TPS92633-Q1 0 Locked

    260 views
    1 reply
    Latest over 1 year ago
    by Hailee Xu
  • Suggested Answer

    TPS61376: Output Voltage stuck at 19.09Vdc and Auto cycles Shutdown-powerup-shutdown-powerup. 0 Locked

    436 views
    7 replies
    Latest over 1 year ago
    by Lei Zhong
  • Answered

    TPS630702EVM: CE/EU Declaration of Conformity (aka EU DoC) required 0 Locked

    203 views
    3 replies
    Latest over 1 year ago
    by Tao Zhang
  • Suggested Answer

    LM137: Junction-to-board thermal resistance 0 Locked

    372 views
    4 replies
    Latest over 1 year ago
    by Stephen Ziel
  • Suggested Answer

    LP3872: Leaving the ERROR output pin floating 0 Locked

    297 views
    6 replies
    Latest over 1 year ago
    by Stephen Ziel
  • Answered

    TPS7B82-Q1: About the Leak current of the TPS7B8250 0 Locked

    361 views
    2 replies
    Latest over 1 year ago
    by narumir
  • Answered

    TPS65987D: ADCIN2 not reading correctly 0 Locked

    195 views
    1 reply
    Latest over 1 year ago
    by Alex Liu
  • Suggested Answer

    LP5907: LP5907MFX-3.3/NOPB 0 Locked

    309 views
    3 replies
    Latest over 1 year ago
    by David Pierpont
  • Not Answered

    BQ40Z50-R2: Factory erase the BQ40Z50 part 0 Locked

    310 views
    1 reply
    Latest over 1 year ago
    by Anthony
  • Answered

    TPS3824-Q1: is this part the same as 2U3824-33QDBVRG4Q1 0 Locked

    223 views
    2 replies
    Latest over 1 year ago
    by Riley Kim
  • Answered

    TPS745-Q1: PG terminal 0 Locked

    348 views
    2 replies
    Latest over 1 year ago
    by Jorge Del Rio
  • Answered

    BQ51050B: Comm Pin Capacitor Upper Limit 0 Locked

    276 views
    2 replies
    Latest over 1 year ago
    by Andrew Elgar
  • Suggested Answer

    LM25119: Design is not able to regulate properly under load. 0 Locked

    664 views
    25 replies
    Latest over 1 year ago
    by Fong Brian
  • Not Answered

    BQ76920: Internal temperature reading returns values outside of expected range 0 Locked

    244 views
    1 reply
    Latest over 1 year ago
    by Max Verboncoeur
  • Answered

    TPS7A49: Vout change rate 0 Locked

    299 views
    3 replies
    Latest over 1 year ago
    by Stephen Ziel
  • Suggested Answer

    BQ27441-G1: BQ27441-G1 0 Locked

    258 views
    1 reply
    Latest over 1 year ago
    by Diego
  • Not Answered

    LM25119: Mosfet thermal is unbalance and show high temperature. 0 Locked

    190 views
    1 reply
    Latest over 1 year ago
    by Mahmoud Harmouch
  • Suggested Answer

    BQ35100EVM-795: Whats the update frequency required in Accumulator mode? 0 Locked

    287 views
    3 replies
    Latest over 1 year ago
    by Diego
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