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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

    BQ78350-R1: BQ78350 Won't allow charge or discharge 0 Locked

    581 views
    5 replies
    Latest over 4 years ago
    by Matt Sunna
  • Suggested Answer

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    Latest over 4 years ago
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    TPS61032: Noise at VBAT and VOUT due to SW signal 0 Locked

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    BQ40Z80EVM-020: How to use "bqStudio - Advanced Comm SMB" ? 0 Locked

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    1 reply
    Latest over 4 years ago
    by Vos
  • Suggested Answer

    BQ27542-G1: BQ27542 can only be communicated with 400kHz? 0 Locked

    151 views
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    by Vos
  • Suggested Answer

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    291 views
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    Latest over 4 years ago
    by Vos
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  • Answered

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    Latest over 4 years ago
    by Elizabeth Higgins
  • Suggested Answer

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    636 views
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    Latest over 4 years ago
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    Latest over 4 years ago
    by Richard Herring
  • Suggested Answer

    TLV757P: Dropout voltage graph 0 Locked

    328 views
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  • Answered

    BQ25120: Battery Under Voltage, What is System Voltage? 0 Locked

    254 views
    1 reply
    Latest over 4 years ago
    by Nick Brylski
  • Suggested Answer

    BQ77216: BQ77216 COUT/DOUT voltage 0 Locked

    594 views
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    Latest over 4 years ago
    by WM5295
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    270 views
    1 reply
    Latest over 4 years ago
    by iAlejandro
  • Answered

    BQ76PL455A-Q1:cell voltage Low than normal 0 Locked

    195 views
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  • Suggested Answer

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    Latest over 4 years ago
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    311 views
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    Latest over 4 years ago
    by Steve Wenner
  • Answered

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    363 views
    1 reply
    Latest over 4 years ago
    by Eric Reicher
  • Not Answered

    TPS73230-EP: TPS73230DBVT: 3.0V LDO regulator driving LCD internal regulators and analog circuits, When cold start system, it did not show any screen but backlight is on. LDO output 1.5V? 0 Locked

    250 views
    1 reply
    Latest over 4 years ago
    by Stephen Ziel
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