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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

    UCC28951-Q1: Difference between 28951 and 28950 0 Locked

    480 views
    2 replies
    Latest over 5 years ago
    by Colin Gillmor
  • Not Answered

    UCC28951-Q1: I can't increase the output voltage to 43.8V in Pspice 0 Locked

    1085 views
    21 replies
    Latest over 5 years ago
    by Colin Gillmor
  • Answered

    LM5036: Unable to run SIMPLIS Transient model 0 Locked

    662 views
    3 replies
    Latest over 5 years ago
    by Peter Meaney
  • Suggested Answer

    UCC2891: Power supply design TINA SIMULATION 0 Locked

    416 views
    1 reply
    Latest over 5 years ago
    by Peter Meaney
  • Suggested Answer

    UCC28019: About the UCC28019 Avoid Audible Noise 0 Locked

    1366 views
    5 replies
    Latest over 5 years ago
    by John Griffin1
  • Answered

    TPS25944L: When power multiplexing using 2 eFuse devices as per fig. 79 of the device datasheet (page 41) how can PGOOD be maintained low when V(IN1) reaches and stays zero ? 0 Locked

    540 views
    3 replies
    Latest over 5 years ago
    by Praveen GD
  • Suggested Answer

    LM5155: Adjustable High Voltage Design 0 Locked

    698 views
    3 replies
    Latest over 5 years ago
    by Brigitte
  • Answered

    TPS24740EVM-596: waveform questions 0 Locked

    364 views
    6 replies
    Latest over 5 years ago
    by Praveen GD
  • Answered

    TPS7A87: Usage 0 Locked

    265 views
    2 replies
    Latest over 5 years ago
    by user6004480
  • Suggested Answer

    TPS40425: Can TPS40425 or TPS40428 support two channel on-die voltage sensing? 0 Locked

    420 views
    7 replies
    Latest over 5 years ago
    by Neo.Wang
  • Answered

    TPS65131: -Unstable output voltages 0 Locked

    1376 views
    4 replies
    Latest over 5 years ago
    by Anto Jacob Jacob
  • Not Answered

    TPS2121: Fast Switchover when one supply is removed 0 Locked

    323 views
    5 replies
    Latest over 5 years ago
    by Andy Robles
  • Suggested Answer

    LM5069: Does the MOSFET gets switched off during surge event? 0 Locked

    598 views
    11 replies
    Latest over 5 years ago
    by Rakesh
  • Not Answered

    TPS2493: thresholds for MOS activation 0 Locked

    490 views
    5 replies
    Latest over 5 years ago
    by Rakesh
  • Answered

    UCC28950: PSFB 0 Locked

    212 views
    2 replies
    Latest over 5 years ago
    by A.S.Bhushan
  • Suggested Answer

    BQ25890H: Can BQ25890H be used stand-alone for charging without not connected to USB BUS OR HOST? 0 Locked

    288 views
    2 replies
    Latest over 5 years ago
    by ezhao
  • Suggested Answer

    UCC28251: Availability of un-encrypted transient model for the UCC28251 controller 0 Locked

    410 views
    1 reply
    Latest over 5 years ago
    by Ulrich Goerke
  • Not Answered

    LM3481: Variation of Vuvlo & Iuvlo parameters w.r.t temperature 0 Locked

    273 views
    7 replies
    Latest over 5 years ago
    by Yinsong Cai1
  • Suggested Answer

    UCC2895: UCC2895 PWM opening time & SS time 0 Locked

    823 views
    1 reply
    Latest over 5 years ago
    by Ulrich Goerke
  • Suggested Answer

    LMZM33603: output capacitance 0 Locked

    231 views
    1 reply
    Latest over 5 years ago
    by Jimmy Hua
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