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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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  • Not Answered

    TPS65219: Input power interruptions and fluctuations issue 0

    17 views
    1 reply
    Latest 3 hours ago
    by Sarah Lao
  • Suggested Answer

    LM5160: LM5160 0

    47 views
    4 replies
    Latest 3 hours ago
    by Youhao Xi
  • Not Answered

    TPS610985: Looking for an alternate/better option 0

    11 views
    0 replies
    Started 3 hours ago
    by Nick Lowell1
  • Suggested Answer

    BQ27Z558: Cannot unseal after seal 0

    54 views
    3 replies
    Latest 4 hours ago
    by Junyu Lu
  • Not Answered

    TPS55289-Q1: Need isolated DC-DC with digital (I2C) programmability for 10-20V input and 30V output 3A 0

    15 views
    0 replies
    Started 4 hours ago
    by Sebastian Cardona Ramirez
  • Suggested Answer

    BQ24090: LED doesnt switch off when battery is charged 0

    19 views
    2 replies
    Latest 4 hours ago
    by Faheem Shaikh
  • Not Answered

    USBCPD-APPLICATION-CUSTOMIZATION-TOOL: BQ76942 0

    20 views
    1 reply
    Latest 4 hours ago
    by Rohin Nair
  • Suggested Answer

    BQ28Z610-R1: Multiple errors in January 2020 TRM 0

    44 views
    4 replies
    Latest 4 hours ago
    by Vincent Kwok
  • Not Answered

    TPS26750: VDMs and the Received SOP Identity Data Object Register 0

    5 views
    0 replies
    Started 4 hours ago
    by Eli Brantingham
  • Not Answered

    TPS7H1121-SEP: Expected RTM schedule 0

    17 views
    1 reply
    Latest 4 hours ago
    by Andy Fondaw
  • Not Answered

    TPS7H4012-SEP: Expected RTM schedule 0

    21 views
    1 reply
    Latest 4 hours ago
    by Andy Fondaw
  • Suggested Answer

    TPS38700S-Q1: Invalid I2C address 0

    62 views
    4 replies
    Latest 4 hours ago
    by Andrew Li
  • Suggested Answer

    TPS2553-Q1: TPS2553 Vout 0

    12 views
    1 reply
    Latest 4 hours ago
    by Eric Hartigan
  • Answered

    BQ25792: BQ25792 was charging a dead battery then shut off and now is dead 0

    96 views
    11 replies
    Latest 4 hours ago
    by Jeff F
  • Suggested Answer

    TPS3430: STWD100NWWY3F Replacement 0

    17 views
    1 reply
    Latest 4 hours ago
    by Jesse Villanueva
  • Not Answered

    TPS54202: Switch node is quite large 0

    5 views
    0 replies
    Started 4 hours ago
    by Jim G
  • Suggested Answer

    BQ24040: When charging supply is plugged, BQ24040 supplies the circuit even there is no battery 0

    54 views
    5 replies
    Latest 4 hours ago
    by Michael Emanuel35
  • Suggested Answer

    UCC28C56EVM-066: How to calculate Leading edge blanking and slope compensation circuit values? 0

    18 views
    1 reply
    Latest 4 hours ago
    by Hong Huang
  • Suggested Answer

    TPS7H3024-SP: Using IC without WatchDog. 0

    23 views
    1 reply
    Latest 4 hours ago
    by Sarah Koch
  • Suggested Answer

    TPS56C215: I2C control Vout solution 0

    37 views
    3 replies
    Latest 5 hours ago
    by Amod Vaze
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