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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

    TPS386000: TPS386000 negative input voltage/current absolute maximum ratings for SENSE and VREF pins 0 Locked

    182 views
    7 replies
    Latest 1 month ago
    by Henry Naguski
  • Not Answered

    TLV757P: High current consumption on TLV75733PDBVR 0 Locked

    38 views
    1 reply
    Latest 1 month ago
    by Alex Davis
  • Suggested Answer

    BQ25750: Problems when switching over power when removing "INPUT" power to switch over to "BATTERY" power with a load on "SYSTEM" 0 Locked

    281 views
    15 replies
    Latest 1 month ago
    by Michael Swanson
  • Answered

    LSF0002: VREFA=VREFB 0 Locked

    44 views
    1 reply
    Latest 1 month ago
    by Jack Guan
  • Answered

    BQ25798: After disabling OTG, the situation of enabling OTG immediately occurs 0 Locked

    163 views
    13 replies
    Latest 1 month ago
    by Raymond Lin
  • Answered

    TPS709: Replacing the ABLIC S1222B-30 with the TPS70930DBVT 0 Locked

    64 views
    1 reply
    Latest 1 month ago
    by Alex Davis
  • Not Answered

    BQ25756: Heating Problems with 48V input and 10S lithium-ion battery charging at 10A 0 Locked

    170 views
    3 replies
    Latest 1 month ago
    by Ethan Galloway
  • Not Answered

    LM317: PCN# 20250618000.1 clarification 0 Locked

    37 views
    1 reply
    Latest 1 month ago
    by Gregory Thompson
  • Suggested Answer

    BQ27Z561-R2: Hibernate Mode Entry 0 Locked

    97 views
    6 replies
    Latest 1 month ago
    by Jonny
  • Not Answered

    BQ27520-G4: IT_ENABLE States 0 Locked

    44 views
    2 replies
    Latest 1 month ago
    by Jonny
  • Suggested Answer

    BQ28Z610-R1: I2C address changed 0 Locked

    74 views
    2 replies
    Latest 1 month ago
    by Jonny
  • Suggested Answer

    BQ27Z746: Golden Image download with total phase interface AARDVARK I2C/SPI Adapter 0 Locked

    149 views
    4 replies
    Latest 1 month ago
    by Jonny
  • Suggested Answer

    BQ27Z746: bq27z746 0 Locked

    131 views
    4 replies
    Latest 1 month ago
    by Jonny
  • Suggested Answer

    TPS92692EVM-880: LED flicker and IS current limit is false triggered 0 Locked

    101 views
    4 replies
    Latest 1 month ago
    by Daniel Louis
  • Suggested Answer

    REF3330: REF3330AI Input voltage limitation 0 Locked

    57 views
    3 replies
    Latest 1 month ago
    by Anusha Adira
  • Suggested Answer

    UCC2802-EP: Type 2 Compensation 0 Locked

    123 views
    1 reply
    Latest 1 month ago
    by Pratik Adibatla
  • Suggested Answer

    BQ25792: I2C to turn off both the input and output FETs 0 Locked

    98 views
    3 replies
    Latest 1 month ago
    by Jeff F
  • Suggested Answer

    LM5050-1: FMEA 0 Locked

    48 views
    1 reply
    Latest 1 month ago
    by Shiven Dhir
  • Not Answered

    TUSB1044: TUSB1044 Section for review 0 Locked

    50 views
    1 reply
    Latest 1 month ago
    by Ryan Kitto
  • Suggested Answer

    UCC29002: High Voltage Load Share 0 Locked

    96 views
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    Latest 1 month ago
    by Ning Tan
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