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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

    TPS65916: TPS659162 OR TPS65930400 to control the power sequence 0 Locked

    177 views
    1 reply
    Latest over 1 year ago
    by Alpesh Borad
  • Answered

    TPS25750: PD Controller's default configuration for SK-TDA4VM 0 Locked

    394 views
    4 replies
    Latest over 1 year ago
    by Sathiya Narayanan
  • Suggested Answer

    TPS929240-Q1: TPS929240 chip internal temperature sensor temperature 0 Locked

    378 views
    5 replies
    Latest over 1 year ago
    by Hailee Xu
  • Answered

    BQ25731: Question about the OTG/FRS pin 0 Locked

    307 views
    2 replies
    Latest over 1 year ago
    by Darren DeBattista1
  • Suggested Answer

    TPS54332: TPS54332 Radiated Emission Issue 0 Locked

    335 views
    4 replies
    Latest over 1 year ago
    by Gui He
  • Answered

    TPS62160: how low-side current limit works at load is short 0 Locked

    207 views
    1 reply
    Latest over 1 year ago
    by Colin Chen
  • Answered

    TPS62160: Question about thermal shutdown 0 Locked

    200 views
    1 reply
    Latest over 1 year ago
    by Colin Chen
  • Answered

    TPS7A49: Regarding soft-start time (tss), what percentage of the output voltage is specified? 0 Locked

    527 views
    7 replies
    Latest over 1 year ago
    by Shinichi Inoue
  • Suggested Answer

    LM51581-Q1: Proper simulation tool? 0 Locked

    260 views
    1 reply
    Latest over 1 year ago
    by Moritz
  • Answered

    TPS63700: Output Voltage issue at -40 degrees 0 Locked

    184 views
    1 reply
    Latest over 1 year ago
    by Bryce Xun
  • Suggested Answer

    TLC59116-Q1: Help to see what is the recommended thermal resistance value of this material? 0 Locked

    297 views
    3 replies
    Latest over 1 year ago
    by Jared Zhou
  • Answered

    TPS54360B-Q1: negative voltage at SW 0 Locked

    229 views
    1 reply
    Latest over 1 year ago
    by Nityanand Hegde
  • Answered

    TPS82130: 3.6V Output to 5V Supply Rail Short Circuit 0 Locked

    212 views
    2 replies
    Latest over 1 year ago
    by Kevin Robson
  • Suggested Answer

    BQ79631-Q1: BQ79631 contactor cut-off and start-up time 0 Locked

    243 views
    1 reply
    Latest over 1 year ago
    by David Ray
  • Answered

    BQ79616: Resistive cables connecting battery cells to BMS IC 0 Locked

    224 views
    1 reply
    Latest over 1 year ago
    by David Ray
  • Answered

    UCD3138CC64EVM-030: How to jump to jump from Flash mode to ROM mode 0 Locked

    390 views
    5 replies
    Latest over 1 year ago
    by Martin
  • Suggested Answer

    TPS65262: V7V pin capacitance change 0 Locked

    337 views
    3 replies
    Latest over 1 year ago
    by Lucia Gao
  • Answered

    TPS25942A: TPS25942 0 Locked

    224 views
    1 reply
    Latest over 1 year ago
    by Kunal Goel
  • Answered

    TLC6C5748-Q1: Using 2 types of LED devices 0 Locked

    198 views
    1 reply
    Latest over 1 year ago
    by Gracie Guo
  • Suggested Answer

    TLV755P: TLV755P LDO output voltage 0 Locked

    382 views
    2 replies
    Latest over 1 year ago
    by Viknesh Vadivel
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