Blanking provides an interval between GATE going high and the current-control comparators on CS actively monitoring the input. This delay allows the normal turnon current transient (spike) to subside before the comparators are active, preventing undesired short duty cycles and premature current limiting.
Connect BLNK to ARTN to obtain the internally set blanking period. Connect a resistor from BLNK to ARTN for a more accurate, programmable blanking period. The relationship between the desired blanking period and the programming resistor is defined by Equation 2.
Place the resistor adjacent to the BLNK pin when it is used.