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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 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
  • [FAQ] TPSF12C1 and TPSF12C3 power-supply filter IC FAQs

    Timothy Hegarty
    Timothy Hegarty
    Other Parts Discussed in Thread: TPSF12C1 , TPSF12C3 Part Numbers: TPSF12C1/3/-Q1 TPSF12C1/-Q1 and TPSF12C3/-Q1 FAQ home page This is the home page for common questions and collateral resources related to the TI's new family of power-supply filter…
    • Answered
    • over 2 years ago
    • Power management
    • Power management forum
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  • Not Answered

    TPS23861: The design issue for TPS23861 0

    25 views
    2 replies
    Latest 10 hours ago
    by Zhang Liang
  • Not Answered

    LM5185-Q1: Flyback can not work as designed 0

    153 views
    16 replies
    Latest 10 hours ago
    by Shinu.V.Mathew
  • Not Answered

    LMR43620-Q1: LMR43620RS5QRPERQ1 0

    7 views
    1 reply
    Latest 11 hours ago
    by Pramanik Patel
  • Not Answered

    TPS27S100: Inrush current is shutting TPS27S100 0

    25 views
    3 replies
    Latest 11 hours ago
    by Hernando Angulo
  • Not Answered

    LMR43610-Q1: LMR43610RS3QRPERQ1 0

    13 views
    1 reply
    Latest 11 hours ago
    by Pramanik Patel
  • Not Answered

    BQ25308EVM: BQ25308 max charging current 0

    8 views
    0 replies
    Started 11 hours ago
    by Julian Daley
  • Not Answered

    TPS54538: 5V Raspberry Pi power cycling 0

    31 views
    2 replies
    Latest 11 hours ago
    by Hitesh Chandwani
  • Suggested Answer

    LM74502: Minimizing Delay Between VEN Activation and Gate Voltage Rise 0

    54 views
    8 replies
    Latest 11 hours ago
    by Shiven Dhir
  • Not Answered

    TPS4H160-Q1: Slower rise and fall time - low skewrate 0

    13 views
    0 replies
    Started 11 hours ago
    by Sanjib Acharya
  • Suggested Answer

    TPS274C65: Use of BS version in daisy chain mode 0

    94 views
    5 replies
    Latest 11 hours ago
    by Guillaume Geoffroy
  • Suggested Answer

    BQ76952: Pin34 of the BQ76952 chip as VDD50.When initializing the BQ76952, VDD50 drop to 0V for about tens of milliseconds 0

    197 views
    11 replies
    Latest 11 hours ago
    by zehu chi
  • Suggested Answer

    LM74700D-Q1: OR-ing power redundant- priority mux controller 0

    62 views
    6 replies
    Latest 11 hours ago
    by Karthika Rani Arumugam
  • Not Answered

    TPS923655DRRREVM: Need to Drive LED 20 Nos with FV = 3V 0

    67 views
    6 replies
    Latest 11 hours ago
    by Lucia Gao
  • Not Answered

    BQ79616: STM32 cant wake up BQ79616 and communicate 0

    29 views
    2 replies
    Latest 11 hours ago
    by Chai Jeffrey
  • Answered

    TPS65313-Q1: TPS65313 Reference Code for SPI Communication 0

    250 views
    22 replies
    Latest 12 hours ago
    by Ashwin Bhaskar
  • Not Answered

    TPS63802: Part fails after few months of normal operation 0

    55 views
    4 replies
    Latest 12 hours ago
    by Lei Zhong
  • Not Answered

    TPS2492: Unexpected Early Current Shutdown 0

    30 views
    1 reply
    Latest 12 hours ago
    by Avishek Pal
  • Suggested Answer

    TPS1663: Rlim selection 0

    19 views
    1 reply
    Latest 12 hours ago
    by Amrit Jit
  • Suggested Answer

    LMR36503-Q1: Methods for Surge Protection in 48V Automotive Systems. 0

    19 views
    1 reply
    Latest 12 hours ago
    by Niranjan Nair
  • Answered

    LV5144: Can LM5145 EVM be used as LV5144 evaluation? 0

    23 views
    2 replies
    Latest 12 hours ago
    by Kazuya Nakai59
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