Frequent Questions

  • [FAQ] BQ25792: What voltage does this narrow voltage DC (NVDC) charger regulate the SYS output to if no battery is attached and charge is disabled?

    Part Number: BQ25792 With charge disabled and no battery attached, BQ25792 regulates SYS to the MINSYS (SYSMIN) voltage set by the BQ25792 Minimal System Voltage Register REG00[5:0].

  • [FAQ] TPS544C25: How to set Vout using Pin strap and using PMBUS

    Part Number: TPS544C25 Other Parts Discussed in Thread: TPS544B25 This FAQ discusses how to set the Vout for TPS544C25, TPS544B25 Using Feedback Divider Network without PMBUS If you want the converter to start to a default 0.84V as an example, here is…

  • [FAQ] IWR6843: How to add a hard coded configuration to mmWave radar projects

    Part Number: IWR6843 By default, the mmWave radar demonstration labs accept configuration commands over UART to set up the device with the desired settings. To provide flexibility, these are typically stored in a text file and sent at startup, but this…

  • [FAQ] How to set and optimize baseline tracking for temperature variations in a button application using LDC2112, LDC2114 or LDC3114?

    Other Parts Discussed in Thread: LDC2114 , LDC2112 The basics of baseline tracking using the LDC2112, LDC2114, and LDC3114 are described in the LDC211x and LDC3114 Internal Algorithm Functionality app note but this FAQ will discuss how to use this feature…

  • [FAQ] BQ25601: [FAQ] Why does the LED connected to STAT pin flashes and the SYS voltage unstable when battery is not connected for BQ25601, BQ25601D, BQ25606, BQ25611D, BQ25616, BQ25616J, BQ25618, BQ25619, BQ25600, BQ25600D, BQ25600C?

    Part Number: BQ25601 Other Parts Discussed in Thread: BQ25600 , , BQ25618 , BQ25606 , BQ25600D , BQ25616 , BQ25619 , , BQ25600C , BQ25611D Hi, The LED on the battery charger evaluation module (EVM) flashes and the SYS voltage is not stable when the battery is…

  • [FAQ] BQ25890: Why does the LED connected to STAT pin flashes and the SYS voltage unstable when battery is not connected for BQ25890, BQ25890H, BQ25892, BQ25895, BQ25895M, BQ25896, BQ25898, BQ25898D, BQ25898C, BQ24190, BQ24192, BQ24192I, BQ24193, BQ24195...

    Part Number: BQ25890 Other Parts Discussed in Thread: BQ24190 , BQ25898 , BQ24296 , BQ24192I , BQ25895 , BQ25896 , BQ24193 , BQ24192 , BQ24292I , , BQ24295 , BQ24298 , BQ25898C , BQ25898D , , BQ24259 , BQ25895M , BQ25892 , BQ24296M , BQ24195 , BQ24196 , BQ24297 , BQ2419…

  • [FAQ] How to Select Amplifiers for 4-20mA Field Transmitter Applications

    Field transmitter is a general term that encompasses the common industrial process control systems: pressure, temperature, and flow. While pressure , temperature , and flow transmitters each pose distinct design challenges and considerations, some signal…

  • [FAQ] Why does my e-load cause my high side switch to shut down?

    One common practice when people are using an e-load to mimic a resistive load is to use the e-load in constant current mode. However, by doing so the user will often experience unwanted device shutdowns. Why is this happening? Resistive loads in nature…

  • [FAQ] What is TI High Side Switches' extended voltage range?

    Sometimes the datasheet for TI High Side Switch will have a section called “extended voltage range” like below: The “extended supply voltage” is only for transient conditions such as cold crank (less than minimum nominal supply voltage) and…

  • [FAQ] What’s TI high side switch’s inrush current limit feature?

    Other Parts Discussed in Thread: TPS272C45 In some TI high side switches (ex. TPS272C45), there is a unique feature called “Inrush Current Handling”. It’s an additional feature built on top of the traditional fixed current limiting. The functionality is…

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