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Frequent questions

  • [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…

  • [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…

  • [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 surge…

  • [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…

  • [FAQ]Why VSYS does not start up normally when there is a loading on the SYS and the battery is not present for BQ25601, BQ25601D, BQ25606, BQ25611D, BQ25616, BQ25616J, BQ25618, BQ25619, BQ25600, BQ25600D, BQ25600C?

    Part Number: BQ25601D Other Parts Discussed in Thread: BQ25600 , BQ25601 , BQ25618 , BQ25606 , BQ25600D , BQ25616 , BQ25619 , , BQ25600C , BQ25611D Hi, It was observed that VSYS could not start up normally with some loading on SYS when the battery…

  • [FAQ] Why can the USB-PD-CHG-EVM-01 not be configured for a 1s battery?

    Part Number: USB-PD-CHG-EVM-01 The TPS25750D requires 5V on PP5V in order to source 5V and for VCONN support. In the design of the board, we decided to supply the PP5V rail from a 5V buck converter. If a battery voltage less than or close to 5V were…

  • [FAQ] What is the function of the MPPSET voltage on the BQ24650?

    Part Number: BQ24650 The function of the BQ24650 MPPSET pin is to hold the input voltage (known as the Maximum Power Point Voltage) at a set point in the event that the input power drops. It is set as a voltage divider from the input to the MPPSET…

  • [FAQ] Can the EV2400 be used to communicate with the BQ25792 through BQSTUDIO on the board USB-PD-CHG-EVM-01?

    Part Number: USB-PD-CHG-EVM-01 Other Parts Discussed in Thread: BQSTUDIO , BQ25792 , EV2400 Yes, the EV2400 and BQStudio can be used to communicate with the charger BQ25792. Please connect the EV2400 to the J7 header with the GND wire closest to…

  • [FAQ] How do I configure the TPS25750 and flash the EEPROM with the output binary for the board USB-PD-CHG-EVM-01?

    Part Number: USB-PD-CHG-EVM-01 Other Parts Discussed in Thread: TPS25750 , Open the TPS25750 Application Customization Tool and … Select all of the desired PD controller and charger parameters. Select “Download Full Flash Binary.” Power the…

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