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PACVGA105
VGA Port Companion Circuit
Product Description The PACVGA105 incorporates 7 channels of ESD protection for
signal lines commonly found in a VGA port for PCs. ESD protection is implemented with current steering diodes designed to safely handle the high peak surge currents associated with the IEC−1000−4−2 Level−4 ESD Protection Standard (8 kV contact discharge). When the channels are subjected to an electrostatic discharge, the ESD current pulse is diverted via the protection diodes into the positive supply rails or ground where they may be safely dissipated.
The upper ESD diodes for the R, G and B channels are connected to a separate supply rail (VRGB) to facilitate interfacing to graphics controller ICs with low voltage supplies.