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Frequent questions

  • [FAQ] BQ25882: How does the BATFET work in the BQ25882, BQ25883, and BQ25886?

    Part Number: BQ25882 Other Parts Discussed in Thread: BQ25883 , BQ25886 There is a BATFET between the system (SYS) and the battery (BAT) in the integrated boost chargers BQ25882, BQ25883, and BQ25886. The BATFET separates the system voltage and the battery…

  • [FAQ] TPS544C26: Common Questions

    Part Number: TPS544C26 Q1: How to calculate and set the value of VIDO_MAX(BDh[0] + BEh[7:0]) Q2: What is the difference between I2C and SVID? Which one should I use? Q3: How do I unlock the device? Q4: How do I add device unlock to the configuration…

  • [FAQ] UCC27624-Q1: How to Calculate the Max Operating Frequency of a Low-side Gate Driver

    Part Number: UCC27624-Q1 This Excel tool will calculate the maximum operating frequency of a low-side gate driver for varying transistor and circuit parameters. This tool is based on a similar tool for half-bridge drivers by Eric Glunn. Low-side Driver…

  • [FAQ] BQ76952: Do the DCHG and DDSG signals on the BQ769x2 follow the CHG and DSG FET driver pin states?

    Part Number: BQ76952 Other Parts Discussed in Thread: BQSTUDIO What are some things to consider when configuring these multifunction pins?

  • [FAQ] BQ76952: What is the I2C device address of the BQ769x2 family?

    Part Number: BQ76952 What is the I2C device address of the BQ769x2 family?

  • [FAQ] BQ25882: How does JEITA apply to the BQ25882, BQ25883, BQ25886, and BQ25887 as it relates to charge voltage and charge current?

    Part Number: BQ25882 Other Parts Discussed in Thread: BQ25883 , BQ25887 , BQ25886 The JEITA guideline was released on April 20, 2007 to improve the safety of charging Li-ion batteries. Each of the chargers in this family have a TS pin, which is used with…

  • [FAQ] BQ76952: How to configure a multipurpose pin to work as a thermistor in the BQ769x2 family devices?

    Part Number: BQ76952 Other Parts Discussed in Thread: BQ769142 , BQ76942 , BQSTUDIO How to configure a multipurpose pin to work as a thermistor in the BQ769x2 (BQ76952, BQ76942, BQ769142) family devices?

  • [FAQ] BQ76952: How to configure the temperature model of BQ769x2 using the thermistor coefficient calculator tool?

    Part Number: BQ76952 Other Parts Discussed in Thread: BQSTUDIO How to configure the temperature model of BQ769x2 using the thermistor coefficient calculator tool?

  • [FAQ] How do I optimize an Impedance Track gauge for low temperatures?

    Other Parts Discussed in Thread: GPCRB , BQSTUDIO , EV2400 At temperatures at or below 0 º C the Impedance Track algorithm will require an extra step to improve the gauging accuracy. If low temperatures are expected in the end application this step will…

  • [FAQ] Power supply design with minimal space AM2431

    Other Parts Discussed in Thread: AM2431 , TPS65219 Hello, We are planning to design an Ethernet card using the AM2431 MCU. From the initial power analysis, the below voltage rails are required for the MCU and peripherals . Since we have a size constraint…

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