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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

    BQ34Z100-R2: Battery chemistry OCV table 0 Locked

    157 views
    4 replies
    Latest 6 months ago
    by Jonny
  • Not Answered

    BQ34Z100-R2: When is the CHG bit set to 1? 0 Locked

    125 views
    1 reply
    Latest 6 months ago
    by Alan Frias
  • Answered

    BQ27Z561-R2:帮忙评估原理图 0 Locked

    342 views
    1 reply
    Latest 6 months ago
    by Alan Frias
  • Not Answered

    BQ34Z100-R2: Load Mode "1" and Load Select "6". 0 Locked

    117 views
    1 reply
    Latest 6 months ago
    by Alan Frias
  • Not Answered

    BQ34Z100-R2: Inaccurate SoC value after power on reset 0 Locked

    181 views
    4 replies
    Latest 6 months ago
    by Alan Frias
  • Answered

    UCC29002: Reference Ground Location +1 Locked

    122 views
    3 replies
    Latest 6 months ago
    by Ulrich Goerke
  • Suggested Answer

    BQ76952: BQ Configuration and Reset Issue 0 Locked

    91 views
    1 reply
    Latest 6 months ago
    by Alexis_H
  • Suggested Answer

    BQ76952: Power supply filter diode causing charge pump voltage drop 0 Locked

    429 views
    7 replies
    Latest 6 months ago
    by Alexis_H
  • Answered

    LMR51420: Maximum Current Rating of Inductor for 5V output application 0 Locked

    213 views
    5 replies
    Latest 6 months ago
    by Frank De Stasi
  • Suggested Answer

    LMR60440-Q1: Can TI provide the simulation model of the LMR60440? 0 Locked

    188 views
    3 replies
    Latest 6 months ago
    by Frank De Stasi
  • Answered

    BQ76952: Hot plug connection 0 Locked

    178 views
    5 replies
    Latest 6 months ago
    by Alexis_H
  • Not Answered

    UCC28950: Output voltage regulation in Voltage control mode 0 Locked

    173 views
    2 replies
    Latest 6 months ago
    by Mike O'
  • Not Answered

    BQ76952: PRECHARGE mode does not work - Any missing condition? 0 Locked

    77 views
    1 reply
    Latest 6 months ago
    by Alexis_H
  • Not Answered

    TPS25821: Unable to provide full 1.5A output to Android devices; works fine on Apple devices. 0 Locked

    247 views
    5 replies
    Latest 6 months ago
    by Aya Khedr
  • Answered

    FUSION_DIGITAL_POWER_DESIGNER: Version 7.9.1 Download Available? 0 Locked

    162 views
    1 reply
    Latest 6 months ago
    by Britton Jones
  • Suggested Answer

    BQ34210IQ1EVM-826: Request for Configuration File for 3s- NiMH Configuration- AAA cell type 0 Locked

    396 views
    9 replies
    Latest 6 months ago
    by Dominik Hartl11
  • Suggested Answer

    LM61460: UL Certfication 0 Locked

    77 views
    3 replies
    Latest 6 months ago
    by Frank De Stasi
  • Suggested Answer

    TPS25772-Q1: Question about power sharing 0 Locked

    96 views
    1 reply
    Latest 6 months ago
    by Eric Hartigan
  • Suggested Answer

    TPS54KC23: Ground shifting to adjust Vout 0 Locked

    124 views
    4 replies
    Latest 6 months ago
    by Tomoya Ide
  • Suggested Answer

    LM74670-Q1: 3-ph rectification 0 Locked

    148 views
    1 reply
    Latest 6 months ago
    by Shiven Dhir
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