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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

    LM317: About the output range 0 Locked

    202 views
    2 replies
    Latest over 4 years ago
    by Yatao Ling1
  • Suggested Answer

    BQ27542-G1: BQ Studio tool version 1.3.86 getting error while do data memory export. How to rectify .This is urgent !!! 0 Locked

    585 views
    12 replies
    Latest over 4 years ago
    by Wyatt Keller
  • Suggested Answer

    BQ21061: recharge threshold/hysterisis seems not to work 0 Locked

    232 views
    1 reply
    Latest over 4 years ago
    by Raheem
  • Suggested Answer

    LP2989: is there a higher current (0.8-1A) p2p replacement for this device? 0 Locked

    332 views
    1 reply
    Latest over 4 years ago
    by Kyle Van Renterghem
  • Suggested Answer

    BQ34110: I2C Communication read bytes 0 Locked

    434 views
    7 replies
    Latest over 4 years ago
    by Jessica H.
  • Suggested Answer

    BQ77915: BMS is turned off when the pack is charged or discharged 0 Locked

    1008 views
    2 replies
    Latest over 4 years ago
    by Xiaodong Cai
  • Answered

    BQ24232: Device Identification 0 Locked

    285 views
    1 reply
    Latest over 4 years ago
    by Anthony P Pham
  • Not Answered

    Inquiries about EVM BD consisting of TX, RX, and MCU that are wirelessly charged. 0 Locked

    141 views
    1 reply
    Latest over 4 years ago
    by Bill Johns
  • Not Answered

    BQ25171-Q1: Reversing Battery Insertion with Rectifier 0 Locked

    620 views
    1 reply
    Latest over 4 years ago
    by Bill Johns
  • Answered

    TPS2121: Reverse voltage blocking when unpowered 0 Locked

    269 views
    1 reply
    Latest over 4 years ago
    by dimitri james
  • Answered

    TPS2115A: Indicator LED for Supply in Use 0 Locked

    1092 views
    3 replies
    Latest over 4 years ago
    by dimitri james
  • Suggested Answer

    BQ24780S: Rac 5mohm for hybrid boost mode entry 0 Locked

    328 views
    1 reply
    Latest over 4 years ago
    by Tiger Zhou
  • Suggested Answer

    BQ24616: Queries on the behaviour of the charging IC 0 Locked

    289 views
    10 replies
    Latest over 4 years ago
    by Kedar Manishankar
  • Answered

    TPS761: alternative solution for higher input voltage 0 Locked

    307 views
    1 reply
    Latest over 4 years ago
    by Kyle Van Renterghem
  • Suggested Answer

    UCC28950-Q1: IDD 0 Locked

    187 views
    3 replies
    Latest over 4 years ago
    by Don Dapkus
  • Suggested Answer

    UCC28070-Q1: Current consumption of the datasheet P3 0 Locked

    275 views
    3 replies
    Latest over 4 years ago
    by Don Dapkus
  • Suggested Answer

    BQ76952: Part availability 0 Locked

    175 views
    2 replies
    Latest over 4 years ago
    by WM5295
  • Suggested Answer

    BQ25504: Question re BQ25504 intended system use 0 Locked

    256 views
    3 replies
    Latest over 4 years ago
    by Jeff F
  • Answered

    230 V AC to DC converter 0 Locked

    328 views
    4 replies
    Latest over 4 years ago
    by albgarc2014
  • Not Answered

    BQ76930: cell 4 value problem 0 Locked

    633 views
    5 replies
    Latest over 4 years ago
    by WM5295
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