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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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  • Answered

    TPS7A02: Slow input at EN pin 0 Locked

    261 views
    3 replies
    Latest over 1 year ago
    by Hannah Grace
  • Suggested Answer

    BQ27621-G1: state of charge issue 0 Locked

    314 views
    3 replies
    Latest over 1 year ago
    by Dominik Hartl11
  • Suggested Answer

    LMR14030-Q1: Output Capacitor Selection 0 Locked

    239 views
    1 reply
    Latest over 1 year ago
    by Andrew Kutzler
  • Answered

    BQ77915: Unclear TS connection indication 0 Locked

    157 views
    1 reply
    Latest over 1 year ago
    by Thomas Rainey
  • Not Answered

    TPS1H200A-Q1: Input Power drop occurs when using 4 products at the same time. 0 Locked

    109 views
    1 reply
    Latest over 1 year ago
    by Timothy Logan
  • Not Answered

    TPS4H160-Q1: current capability 0 Locked

    194 views
    1 reply
    Latest over 1 year ago
    by Timothy Logan
  • Suggested Answer

    LM27761: ?? LM27761 behave above 85degC 0 Locked

    127 views
    1 reply
    Latest over 1 year ago
    by Josef Marsmann
  • Answered

    TPS3895: TPS3895A Alternative 0 Locked

    235 views
    1 reply
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    by Jesse Villanueva
  • Answered

    LM25185: LM25185 Unencrypted PSpice Transient Model needed 0 Locked

    274 views
    3 replies
    Latest over 1 year ago
    by Youhao Xi
  • Answered

    BQ24780S: No charge 0 Locked

    490 views
    8 replies
    Latest over 1 year ago
    by Christian Moyer
  • Suggested Answer

    LMR38020: Thermal performance of LMR38020 0 Locked

    273 views
    3 replies
    Latest over 1 year ago
    by Youhao Xi
  • Answered

    UCC28064A: Regarding the maximum operating frequency of the UCC28064A 0 Locked

    197 views
    1 reply
    Latest over 1 year ago
    by Ulrich Goerke
  • Answered

    BQ76952: ADC effective input impedance for any of VC(n-1) and VCn 0 Locked

    216 views
    1 reply
    Latest over 1 year ago
    by Thomas Rainey
  • Not Answered

    UCC28711: UCC28711: 0 Locked

    297 views
    1 reply
    Latest over 1 year ago
    by Steven Mappus1
  • Suggested Answer

    TPS7A74: How to calculate junction temperature 0 Locked

    694 views
    10 replies
    Latest over 1 year ago
    by Hannah Grace
  • Answered

    TPSM846C23: Fluctuations in VOUT value and regulator output fails 0 Locked

    380 views
    9 replies
    Latest over 1 year ago
    by Eileen Hernandez Hernandez
  • Answered

    TPS7A26: 1.8V fixed output LDO part number for TPS7A26 0 Locked

    190 views
    1 reply
    Latest over 1 year ago
    by Clemens Ladisch
  • Suggested Answer

    CSD19532KTT: To Reduce Mosfet VDS Max 0 Locked

    208 views
    1 reply
    Latest over 1 year ago
    by John Wallace1
  • Answered

    BQ25570: Input capacitance 0 Locked

    262 views
    1 reply
    Latest over 1 year ago
    by Michael Emanuel35
  • Answered

    UCC25660: UCC256601 does not work and is damaged. +1 Locked

    768 views
    15 replies
    Latest over 1 year ago
    by Manikanta Pallantla
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