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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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  • Suggested Answer

    BQ40Z50-R1:BQ40Z50发送SHUTDOWN指令后进入休眠,接入充电器唤醒后,不同电池在第1S 第5S读到的数据都异常,后面的数据都正常,请问建议唤醒多久后再读取数据? 0

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    UA78M: UA78M33CDCYR PCN/Change Causing Increased Oscillation on Output.. 0

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    by Jorge Del Rio
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    LM1085: the length of the TO-263 package 0

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    by Noah Weinstein
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    BQ34Z100-R2: Appropriate value for Sleep Current 0

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    by Dominik Hartl11
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    TPS65224-Q1: PMIC probe failed with error -22 0

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    Latest 3 days ago
    by Anshu Madwesh
  • Suggested Answer

    BQ28Z610-R1: Multiple errors in January 2020 TRM 0

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    Latest 3 days ago
    by Diego
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    BQ40Z50-R2: Battery Chemistry Library 0

    33 views
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    by Miguel Castro Gonzalez
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    BQ40Z50-R2:BQ40Z50无法通讯,但是输出状态正常,电池组可以正常工作 0

    145 views
    2 replies
    Latest 3 days ago
    by Miguel Castro Gonzalez
  • Suggested Answer

    BQ34Z100-R2: IC going back to 0001_0_02 after power cycle, even after successfully programming it to latest firmware 0

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    3 replies
    Latest 3 days ago
    by Diego
  • Suggested Answer

    BQ34Z100-R2: I want to design the fuel gauge BQ34Z100PWR-R2 for 5S2P battery 0

    82 views
    7 replies
    Latest 3 days ago
    by Diego
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    TPS51206: VTTREF, VTT ramp up timing 0

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    1 reply
    Latest 3 days ago
    by James Steenbock
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    BQ34Z100-G1: BQ34Z100-G1 0

    109 views
    11 replies
    Latest 3 days ago
    by Diego
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    BQ4050: The displayed battery level is inconsistent with the actual cell charge 0

    106 views
    3 replies
    Latest 3 days ago
    by Miguel Castro Gonzalez
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    TPS3851: Recommended termination for RESET# pin 0

    21 views
    1 reply
    Latest 3 days ago
    by Jesse Villanueva
  • Suggested Answer

    LM74610-Q1: Compatible MOSFET with LM74610-Q1 0

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    BQ76952: Shutdown_wakeup communication failure 0

    52 views
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    Latest 3 days ago
    by Rohin Nair
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    LM66200: ORing Controller N-Channel 0

    33 views
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    Latest 3 days ago
    by Shiven Dhir
  • Suggested Answer

    BQ25616: Package Impedance and Charging Time 0

    15 views
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    Latest 3 days ago
    by Michael Emanuel35
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    BQ34Z100-R2: Charge level LEDs no longer function after disconnecting and reconnecting battery 0

    34 views
    3 replies
    Latest 3 days ago
    by Diego
  • Suggested Answer

    BQ25616: undesirable Output voltage at battery terminal and output pins 0

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