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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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View FAQ threads
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  • Answered

    TPS92691: Start up current issue. 0 Locked

    479 views
    1 reply
    Latest over 8 years ago
    by Clinton Jensen
  • Suggested Answer

    BQ76200: Q1 FET is turning on even though the DSG_EN input is low 0 Locked

    1578 views
    3 replies
    Latest over 8 years ago
    by Drew Westrick
  • Suggested Answer

    BQ21040: Charging 2 LiPo Batteries connected in Parallel, each has it's own PCM (protection Circuit Module) 0 Locked

    915 views
    1 reply
    Latest over 8 years ago
    by Diana Bodenmiller
  • Not Answered

    TPS735-Q1: thermal simulation model (Delphi model) for TPS735-Q1 0 Locked

    537 views
    1 reply
    Latest over 8 years ago
    by Michael Hartshorne
  • Answered

    BQ25601: setting safety timer for large capacity batteries 0 Locked

    1304 views
    5 replies
    Latest over 8 years ago
    by Joel Hernandez II
  • Not Answered

    BQ24616: Compatible with bq78350-r1 ? 0 Locked

    232 views
    1 reply
    Latest over 8 years ago
    by Ann_Lien
  • Answered

    PTH04070W: AH and AD suffix differences 0 Locked

    1005 views
    1 reply
    Latest over 8 years ago
    by J Arrigo
  • Not Answered

    BQ24103A: Help check BQ24103A schematic 0 Locked

    286 views
    1 reply
    Latest over 8 years ago
    by Ann_Lien
  • Not Answered

    UCC28051: Transformer ratio for ZCD pin of UCC28051 0 Locked

    505 views
    2 replies
    Latest over 8 years ago
    by John Griffin1
  • Suggested Answer

    BQ24314: Failure mode 0 Locked

    424 views
    1 reply
    Latest over 8 years ago
    by Roger Hwang
  • Suggested Answer

    BQ76PL536A: when only used in a 4S configuration, what should the VBUS N/S pins be connected to? 0 Locked

    395 views
    1 reply
    Latest over 8 years ago
    by Roger Hwang
  • Not Answered

    TPS65217CEVM: sys_voltage not coming 0 Locked

    1017 views
    5 replies
    Latest over 8 years ago
    by Brian Berner
  • Suggested Answer

    BQ25895M: BQ25895M 0 Locked

    489 views
    1 reply
    Latest over 8 years ago
    by Joel Hernandez II
  • Not Answered

    BQ76200: BQ76200 with an additional mosfet 0 Locked

    1657 views
    1 reply
    Latest over 8 years ago
    by WM5295
  • Not Answered

    bq24725A: bq24725A first time boot up 0 Locked

    278 views
    1 reply
    Latest over 8 years ago
    by Wang5577
  • Not Answered

    TPS62177: Transient on Output During Startup 0 Locked

    1000 views
    3 replies
    Latest over 8 years ago
    by Chris Glaser
  • Not Answered

    TPS25942A: Statistics of V(REVTH) 0 Locked

    798 views
    5 replies
    Latest over 8 years ago
    by Antenna_Head
  • Suggested Answer

    BQ501210: 15W receiver 0 Locked

    847 views
    1 reply
    Latest over 8 years ago
    by Bill Johns
  • Suggested Answer

    TLV62569: OVP Function 0 Locked

    380 views
    1 reply
    Latest over 8 years ago
    by Ivo
  • Answered

    TPS51206: About startup sequence. 0 Locked

    1168 views
    3 replies
    Latest over 8 years ago
    by Edwin Zang
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