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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] Does the TI Fusion GUI provide a general purpose PMBus or I2C tool?

    Sam
    Sam
    Yes, the SMBus & SAA Tool allows you to communicate to any I 2C or PMBus device. The tool can be launched from either: • Fusion Digital Power Designer GUI (Tools → SMBus & SAA Tool) • Fusion Digital Power Designer → Tools → SMBus & I2C & SAA Debug…
    • over 4 years ago
    • Power management
    • Power management forum
  • [FAQ] Why are some PMBus commands not described in the UCD90xxx PMBus command reference document?

    Sam
    Sam
    The UCD90xxx PMBus Command Reference contains mostly manufacturer specific commands (see UCD90xxx Sequencer and System Health Controller PMBus Command Reference ). There are also many standard PMBus commands described in PMBus Specification Rev 1.1…
    • over 4 years ago
    • Power management
    • Power management forum
  • [FAQ] Is a UCD90xxx PMBus command reference required?

    Sam
    Sam
    Not necessarily, and it is up to what you plan to do. However, do use it as an ultimate reference. Each function in the Fusion GUI has a corresponding PMBus command. The UCD90xxx PMBus Command Reference contains not only protocol information but also…
    • over 4 years ago
    • Power management
    • Power management forum
  • [FAQ] Should the Fusion Digital Power Designer GUI be used?

    Sam
    Sam
    Definitely. The Fusion Digital Power Designer GUI serves three major functions: 1. Assist you to configure the device with a graphic interface so that you do not have to learn the PMBus commands 2. Generate configuration files and scripts for manufacturing…
    • over 4 years ago
    • Power management
    • Power management forum
  • [FAQ] Is TI USB-to-GPIO configurable?

    Sam
    Sam
    Yes. You can configure the USB-to-GPIO adapter to select different bus speed (100 kHz or 400 kHz), packet error checking (enabled or disabled), and pullup settings (open-drain, 668 Ω, 1 kΩ, and 2.2 kΩ). When the adapter is used on TI UCD90xxx EVMs…
    • over 4 years ago
    • Power management
    • Power management forum
  • [FAQ] What is an ALERT signal?

    Sam
    Sam
    Other Parts Discussed in Thread: UCD90320U , UCD90320 , UCD90240 An ALERT signal is an interrupt line for devices that want to trade their ability to master for a pin. ALERT is a wired-AND signal as SCL/SDA. A slave-only device can signal the host through…
    • over 4 years ago
    • Power management
    • Power management forum
  • [FAQ] What hardware interface is required to communicate with UCD90xxx devices?

    Sam
    Sam
    UCD90xxx devices use PMBus communication. Both configuration and monitoring use the same PMBus interface. UCD90xxx devices are PMBus slaves, so you need to have a PMBus host to communicate with them. This PMBus host can be an MCU or FPGA implementation…
    • over 4 years ago
    • Power management
    • Power management forum
  • [FAQ] How does the BATFET work in the BQ25790, BQ25792, BQ25798, and BQ25672?

    Michael Emanuel35
    Michael Emanuel35
    Part Number: BQ25790 Other Parts Discussed in Thread: BQ25798 , BQ25792 , BQ25672 There is a BATFET between the system (SYS) and the battery (BAT) in the integrated buck boost chargers BQ25790, BQ25792, and BQ25798 and the integrated buck charger BQ25672…
    • Answered
    • over 4 years ago
    • Power management
    • Power management forum
  • [FAQ] TPS54320: SWIFT™︎ mentioned in tps54320 introduction ™︎ Principle and characteristics of

    Dong Shen1
    Dong Shen1
    Part Number: TPS54320 Other Parts Discussed in Thread: TPS54302 , TPS563201 Hi, The customer asked me about SWIFT in tps54320 ,what does it mean? Is the internal structure and function of such devices different from other devices (such as tps54302 or…
    • over 4 years ago
    • Power management
    • Power management forum
  • [FAQ] BQ25120A: What is the maximum current I can pull from PMID?

    Arelis Guerrero
    Arelis Guerrero
    Part Number: BQ25120A The maximum discharge current you can pull from the PMID output depends on if adapter (VIN) is present or not. Operating on BAT only mode, the max current from PMID will be your Current Limit on Discharge Mode (IBAT_OCP). When the…
    • Answered
    • over 4 years ago
    • Power management
    • Power management forum
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