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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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  • Answered

    BQ76952: PACK voltage sampling speed is slow 0 Locked

    270 views
    4 replies
    Latest over 1 year ago
    by L
  • Not Answered

    LM76202-Q1: SHDN pin activated by human touch 0 Locked

    196 views
    3 replies
    Latest over 1 year ago
    by Rakesh
  • Answered

    LP876242-Q1: How to close the PMIC watchdog by software? 0 Locked

    538 views
    10 replies
    Latest over 1 year ago
    by Ishtiaque Panhwar
  • Not Answered

    TPS61220: power supply 0 Locked

    216 views
    3 replies
    Latest over 1 year ago
    by Nini Zhong
  • Suggested Answer

    LM7480-Q1: How to keep DGATE active during EN/UVLO pin is low 0 Locked

    243 views
    3 replies
    Latest over 1 year ago
    by Shiven Dhir
  • Suggested Answer

    TPS2493: Strange behaveor of UVEN and OV pins 0 Locked

    354 views
    7 replies
    Latest over 1 year ago
    by Avishek Pal
  • Suggested Answer

    TPS55340: Pre bias startup 0 Locked

    226 views
    1 reply
    Latest over 1 year ago
    by Stefan Schauer
  • Suggested Answer

    TPS55340: VCC confirmation 0 Locked

    176 views
    1 reply
    Latest over 1 year ago
    by Stefan Schauer
  • Suggested Answer

    TPS3808: 電源監視IC 0 Locked

    759 views
    1 reply
    Latest over 1 year ago
    by Jesse Villanueva
  • Answered

    TPS65235EVM-694: USB interface 0 Locked

    215 views
    1 reply
    Latest over 1 year ago
    by Colin Chen
  • Suggested Answer

    TPS55288: I2C response time 0 Locked

    226 views
    3 replies
    Latest over 1 year ago
    by Bryce Xun
  • Not Answered

    TPS92201: What happens with PWM below 1%? +1 Locked

    512 views
    3 replies
    Latest over 1 year ago
    by Steven Li
  • Suggested Answer

    TPS54360: IBIS Model Request 0 Locked

    171 views
    1 reply
    Latest over 1 year ago
    by Nityanand Hegde
  • Answered

    TPS62870-Q1: Need for the information described in description 0 Locked

    289 views
    7 replies
    Latest over 1 year ago
    by Nivethitha Harikrishnan
  • Answered

    TPS25750: How to configure on MCU 0 Locked

    455 views
    15 replies
    Latest over 1 year ago
    by Shuji Ishiwata
  • Answered

    TPS61093: What is the current limit for TPS61093 boost converter IC 0 Locked

    392 views
    7 replies
    Latest over 1 year ago
    by Lei Zhong
  • Answered

    BQ20Z70-V160: bq20z75-V180 0 Locked

    308 views
    2 replies
    Latest over 1 year ago
    by matt bielstein
  • Answered

    TLV61070A: Output abnormal 0 Locked

    759 views
    10 replies
    Latest over 1 year ago
    by Travis Wang
  • Not Answered

    TPS82150: TPS82150 equivalent number of transistors 0 Locked

    313 views
    3 replies
    Latest over 1 year ago
    by Shipeng Cheng
  • Answered

    UCC27712: high and low mos be turned on at the same time 0 Locked

    560 views
    8 replies
    Latest over 1 year ago
    by user5831319
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