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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 1 year 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

    TPS650864: how to Enable/disable buck1/2/3/4/5/6 of TPS6508641,separately? 0 Locked

    344 views
    1 reply
    Latest over 1 year ago
    by James Steenbock
  • Answered

    TPS65987DDK: Tx Identity configuration 0 Locked

    383 views
    6 replies
    Latest over 1 year ago
    by Aya Khedr
  • Suggested Answer

    REF5025A-Q1: Requesting failure rate 0 Locked

    256 views
    1 reply
    Latest over 1 year ago
    by Lorena Dudman
  • Suggested Answer

    BQ769142: maximum current gate driver 0 Locked

    267 views
    3 replies
    Latest over 1 year ago
    by Luis H. S.
  • Suggested Answer

    BQ76972: Unused pin and MOSFET driving resistor value 0 Locked

    350 views
    3 replies
    Latest over 1 year ago
    by Thomas Rainey
  • Suggested Answer

    BQ79606A-Q1: The question about failure mode of FMEDA calculation tool 0 Locked

    785 views
    18 replies
    Latest over 1 year ago
    by Anthony P Pham
  • Not Answered

    TPS25750: PP_EXT switch status 02 0 Locked

    225 views
    1 reply
    Latest over 1 year ago
    by Kevin Kosta
  • Suggested Answer

    BQ27542EVM: Why is there no BATLOW flag in the bqz file of BQ27542 0 Locked

    241 views
    1 reply
    Latest over 1 year ago
    by Jonny
  • Suggested Answer

    BQ25750: Power Bank Application - Multiple MOSFETs Query between BQ76942/BQ25750 0 Locked

    315 views
    2 replies
    Latest over 1 year ago
    by Thomas Rainey
  • Suggested Answer

    BQ25798: Charging not working, STAT flashing, fault registers not showing any faults, ADC is unable to measure VAC1, VAC2 and VBAT +1 Locked

    1276 views
    3 replies
    Latest over 1 year ago
    by Jibin Biju
  • Not Answered

    LM74720-Q1: LM74720-Q1 Oring circuit using Two Inputs 0 Locked

    449 views
    1 reply
    Latest over 1 year ago
    by Shiven Dhir
  • Answered

    UCC33420: separated GNDP/GNDS 0 Locked

    347 views
    3 replies
    Latest over 1 year ago
    by Steven Mappus1
  • Suggested Answer

    LM5143A-Q1: 2 Phase operation with different supply voltages 0 Locked

    233 views
    3 replies
    Latest over 1 year ago
    by EricLee
  • Suggested Answer

    REF35: YBH voltage reference availability 0 Locked

    215 views
    1 reply
    Latest over 1 year ago
    by Masoud Beheshti61
  • Suggested Answer

    LM51231-Q1: Vin=3.3V to Vout=20V with 60W design support 0 Locked

    409 views
    5 replies
    Latest over 1 year ago
    by Harry Hofner
  • Answered

    BQ25798: Using a USB Type-C 1.2 charger (5V@3A) without a PD controller 0 Locked

    506 views
    1 reply
    Latest over 1 year ago
    by Jibin Biju
  • Not Answered

    TLC5940: Random high intensity flicker 0 Locked

    253 views
    3 replies
    Latest over 1 year ago
    by Jared Zhou
  • Not Answered

    BQ25792: Charger status ok but doesn't charge the battery. 0 Locked

    286 views
    8 replies
    Latest over 1 year ago
    by Christopher Lim1
  • Answered

    BQ76952: Is power supply required on REG1 for SPI to work 0 Locked

    295 views
    4 replies
    Latest over 1 year ago
    by Thomas Rainey
  • Answered

    BQ76952: Cell Balancing Active Cells (CB_ACTIVE_CELLS) reading when using 15-cell configuration 0 Locked

    277 views
    2 replies
    Latest over 1 year ago
    by Kyungjae Lee
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