SLVS933D July 2009 – December 2020 TPS23753A
Blanking provides an interval between the gate drive going high and the current comparator on CS actively monitoring the input. This delay allows the normal turnon current transient (spike) to subside before the comparator is active, preventing undesired short duty cycles and premature current limiting.
Connect BLNK to RTN to obtain the internally set blanking period. Connect a resistor from BLNK to RTN for a programmable blanking period. The relationship between the desired blanking period and the programming resistor is defined by Equation 3.
Place the resistor adjacent to the BLNK pin when it is used.