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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

    BQ34Z100-G1: Can I manually change the Update Status in the Data Memory Gas Gauging section? 0 Locked

    206 views
    1 reply
    Latest over 1 year ago
    by Adrian
  • Suggested Answer

    UCC2897A: Based on PMP7499 12v 5a ,how to modified output is 24v2.5a 0 Locked

    244 views
    3 replies
    Latest over 1 year ago
    by Steven Mappus1
  • Answered

    TPS40345: why there is no (1-D) in equation 11 Cin(min) of TPS40345? 0 Locked

    534 views
    6 replies
    Latest over 1 year ago
    by kingson zhang
  • Not Answered

    Current Regulation Phase 0 Locked

    271 views
    1 reply
    Latest over 1 year ago
    by Bill Johns
  • Not Answered

    TPS92623-Q1: Thermal sharing mechanism 0 Locked

    240 views
    3 replies
    Latest over 1 year ago
    by Hailee Xu
  • Answered

    BQ27427: What delays are required when exiting CFGUPDATE (Configuration Update) mode? 0 Locked

    228 views
    2 replies
    Latest over 1 year ago
    by Atlant Schmidt
  • Suggested Answer

    LM5060-Q1: Using separate Vin for driver and mosfet for LM5060 or TPS4811 or TPS2492 0 Locked

    413 views
    4 replies
    Latest over 1 year ago
    by Tanmay Sutaria
  • Not Answered

    BQ76952: BQ76952 SDA Pin Pulled Low Unexpectedly 0 Locked

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

    TPS61043: MIX DATE CODES (TAPING) 0 Locked

    493 views
    10 replies
    Latest over 1 year ago
    by Patrick Yao
  • Answered

    LM3550: solution for Photoflash charger, such as LT3468 0 Locked

    283 views
    1 reply
    Latest over 1 year ago
    by Steven Li
  • Answered

    TPSM84212: Inverting Buck-Boost? 0 Locked

    418 views
    8 replies
    Latest over 1 year ago
    by Gui He
  • Suggested Answer

    LM5051: FET selection inquiry for O-ring and hot swap solutions 0 Locked

    274 views
    1 reply
    Latest over 1 year ago
    by Shiven Dhir
  • Not Answered

    LM3445: Is it suitable for 100 Watt Led? 0 Locked

    392 views
    2 replies
    Latest over 1 year ago
    by Steven Li
  • Suggested Answer

    BQ25792EVM: Non standard adapter recognition 0 Locked

    1009 views
    25 replies
    Latest over 1 year ago
    by Stefano Sivera
  • Answered

    TPS63802: output regulation at lower Vin? 0 Locked

    348 views
    6 replies
    Latest over 1 year ago
    by Tao Zhang
  • Not Answered

    TPS61390: input voltage requirement with 85V output 0 Locked

    257 views
    5 replies
    Latest over 1 year ago
    by Fergus He
  • Not Answered

    TPS61169: low level(0~10%) analog dimming with LED Driver 0 Locked

    318 views
    5 replies
    Latest over 1 year ago
    by Zhiqian Wu
  • Suggested Answer

    LP5860: Audible Noise Issue with LP5860 on our PCB 0 Locked

    466 views
    7 replies
    Latest over 1 year ago
    by Jared Zhou
  • Answered

    TPS61288: What happens if I calculate Rc, Cc and Cp incorrectly? 0 Locked

    396 views
    4 replies
    Latest over 1 year ago
    by Fergus He
  • Suggested Answer

    TPS62903: Issue with Low-Vin-Buck Simulation in PSPICE for Power Supply Design 0 Locked

    444 views
    5 replies
    Latest over 1 year ago
    by Colin Chen
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