• Can the ground B (GNDB ) of ADuM4221-1 be driven at -4V

    Hello, 

    I wish to use ADuM4221-1  to drive C3M0015065K SiC MOSFET. This requires to be driven at a negative voltage to ensure that it stays off when required. the ground B (GNDB )  of ADuM4221-1 be driven at -4V? The datasheet of ADuM4221-1  says it is compatible…

  • Can the ground B (GNDB ) of ADuM4221-1 be driven at -4V?

    Hello, 

    I wish to use ADuM4221-1  to drive C3M0015065K SiC MOSFET. This requires to be driven at a negative voltage to ensure that it stays off when required. Can the ground B (GNDB )  of ADuM4221-1 be driven at -4V? The datasheet of ADuM4221-1  says it is compatible…

  • RE: Diodes to turn on/off path for different drive strengths in isolated gate drivers

     Yes. The standard methods to vary the turn-on and turn-off drive current can be employed on the ADuM4221.

    Take a look at the theory of operation section in the ADuM4221 datasheet to get more details, the datasheet can be found here

  • RE: ADuM4120/1 frequency graph only go to 500 kHz

    The resolution of the duty cycle of the ADUM4221 allows for very fine pulse width minimums, but when the operating frequency is brought very high, the quiescent current of the device goes up dramatically.

    This quiescent current is too large for recommended…

  • ADUM 4221

     My question is related to the capacitance C9,C10,C11 as shown in figure.What is the use of these capacitances .Also the value of these capacitances  is recommended as 100 µF electrolytic capacitor for C9 and 2.2 µF ceramic capacitors for C10 and C11.But…