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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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  • Not Answered

    SOC value not getting redeem after POR 0 Locked

    624 views
    1 reply
    Latest over 9 years ago
    by ThomasCosby
  • Not Answered

    bq 78350 - reset for use on a new battery pack 0 Locked

    1020 views
    1 reply
    Latest over 9 years ago
    by ThomasCosby
  • Suggested Answer

    LM22672 abnormal behavior/ Loop compensation 0 Locked

    853 views
    4 replies
    Latest over 9 years ago
    by Fabio Santana
  • Not Answered

    TPS544B20 Iout warning and Fault threshold accuracy 0 Locked

    303 views
    0 replies
    Started over 9 years ago
    by K. Sasaki14
  • Not Answered

    My DC/DC is whistling ( TPS5433x ) 0 Locked

    902 views
    2 replies
    Latest over 9 years ago
    by JohnTucker
  • Suggested Answer

    TPS40200DR pin 5 and pin 6 relationship 0 Locked

    972 views
    3 replies
    Latest over 9 years ago
    by JohnTucker
  • Not Answered

    TPS54622 output peak current 0 Locked

    896 views
    5 replies
    Latest over 9 years ago
    by JohnTucker
  • Not Answered

    max and minimum eco-mode switch current threshold of TPS54232 0 Locked

    857 views
    1 reply
    Latest over 9 years ago
    by JohnTucker
  • Answered

    About fast response sequencer 0 Locked

    1118 views
    3 replies
    Latest over 9 years ago
    by Satoshi
  • Not Answered

    TPS544B20 Iout measurement accuracy 0 Locked

    199 views
    0 replies
    Started over 9 years ago
    by K. Sasaki14
  • Answered

    PF status SOTD, SOTC, AFE_C........ bq20z75 V.1.60 0 Locked

    691 views
    2 replies
    Latest over 9 years ago
    by Kjell Ramberg
  • Not Answered

    LP-3952 ACPI id? 0 Locked

    1141 views
    9 replies
    Latest over 9 years ago
    by TonyMakkiel
  • Not Answered

    MPPT – Street lamp with Solar tracker to charge batteries with SM72445 0 Locked

    1107 views
    3 replies
    Latest over 9 years ago
    by Vincenzo Pizzolante
  • Suggested Answer

    TPS54202EVM's Vin_min 0 Locked

    479 views
    4 replies
    Latest over 9 years ago
    by Abull Yang
  • Suggested Answer

    TPS54531 Thermal impedance and design rating 0 Locked

    934 views
    3 replies
    Latest over 9 years ago
    by Abull Yang
  • Not Answered

    bq24170 STAT Pin Triggers without Battery 0 Locked

    272 views
    0 replies
    Started over 9 years ago
    by Dorian Fernandez13
  • Answered

    TPS7A47 Reverse current diode 0 Locked

    812 views
    3 replies
    Latest over 9 years ago
    by Mark Sellers
  • Discussion

    LM5050 disable pin? Locked

    1173 views
    4 replies
    Latest over 9 years ago
    by Alex Triano
  • Not Answered

    Charging and Discharging Detection using bq27542-g1 0 Locked

    429 views
    1 reply
    Latest over 9 years ago
    by Onyx Ahiakwo
  • Answered

    TPS92210 snubber circuit calculation 0 Locked

    1106 views
    1 reply
    Latest over 9 years ago
    by Irwin Nederbragt
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