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Value of Bootstrap capacitor for IR2111 & L6384 Half Bridge Driver

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  • Value of Bootstrap capacitor for IR2111 & L6384 Half Bridge Driver

    What will be value of Bootstrap capacitor for IR2111 & L6384 High-Voltage Half Bridge Driver. Or please give me formula for calculating the value of Bootstrap capacitor.

  • #2
    It depends on the top MOSFET ,the boost capacitance needs to store about100 times the gate charge required by the top MOSFET. In many applications 0.1uF to 0.47uF is adequate.

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