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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

    TPS745-Q1: discharge circuit resistance 0 Locked

    206 views
    1 reply
    Latest over 4 years ago
    by Jason Song
  • Answered

    TPS22965-Q1: The impedance of pin6 to GND is not stable 0 Locked

    214 views
    1 reply
    Latest over 4 years ago
    by Shreyas Dmello
  • Answered

    BQ2002: About the state transition diagram in Fig. 2 of the BQ2002/F and BQ2002E/G data sheets 0 Locked

    569 views
    1 reply
    Latest over 4 years ago
    by Anthony P Pham
  • Suggested Answer

    LP5900: Minimum voltage difference for small loads 0 Locked

    244 views
    1 reply
    Latest over 4 years ago
    by Nick Butts
  • Not Answered

    BQ24630EVM: STAT2 LED is not operated. 0 Locked

    248 views
    5 replies
    Latest over 4 years ago
    by Kedar Manishankar
  • Not Answered

    BQ24650: BQ24650 Output Voltage Is 0.78V 0 Locked

    429 views
    7 replies
    Latest over 4 years ago
    by Kedar Manishankar
  • Suggested Answer

    BQ79600-Q1: BQ79600-Q1 daisy chain BQ7961x 0 Locked

    505 views
    3 replies
    Latest over 4 years ago
    by Taylor Vogt
  • Suggested Answer

    TPS3823: MR behaviour 0 Locked

    309 views
    2 replies
    Latest over 4 years ago
    by Ben C
  • Answered

    LMR33630: inverting power supply 0 Locked

    594 views
    1 reply
    Latest over 4 years ago
    by J Arrigo
  • Suggested Answer

    BQ24773: Unable to get eval board to charge battery 0 Locked

    546 views
    3 replies
    Latest over 4 years ago
    by Angelo Zhang87
  • Not Answered

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    425 views
    5 replies
    Latest over 4 years ago
    by Chasel Chen
  • Not Answered

    TPS53667: jitter & transient tuning 0 Locked

    270 views
    2 replies
    Latest over 4 years ago
    by Chasel Chen
  • Suggested Answer

    BQ78PL116: Impact temperature sensor on SOC & RAH calculation 0 Locked

    203 views
    1 reply
    Latest over 4 years ago
    by Wyatt Keller
  • Suggested Answer

    TPS7A4501-SP: Radiation question on the TPS7A4501 0 Locked

    500 views
    3 replies
    Latest over 4 years ago
    by Wade Vonbergen
  • Suggested Answer

    BQ24172: Low current from battery to charge circuit if charging is terminated and wall adapter is present 0 Locked

    169 views
    1 reply
    Latest over 4 years ago
    by Ricardo
  • Answered

    UCD90320: ADC equivalent input resistance versus recommended series input resistance 0 Locked

    365 views
    3 replies
    Latest over 4 years ago
    by yihe
  • Not Answered

    BQ25703A: Charging voltage stability 0 Locked

    312 views
    8 replies
    Latest over 4 years ago
    by Bkk
  • Suggested Answer

    UCD9090: Programming UCD9090 0 Locked

    499 views
    1 reply
    Latest over 4 years ago
    by yihe
  • Answered

    BQ25713: InputVoltage() causing Vsys issue when battery is disconnected 0 Locked

    371 views
    8 replies
    Latest over 4 years ago
    by Linhong Qin
  • Answered

    Inquiry about products that support Linux drivers among Battery Fuel Gauges. 0 Locked

    242 views
    1 reply
    Latest over 4 years ago
    by Wyatt Keller
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