On page 23 of the datasheet it states:
If the input
voltage is more than the gate breakdown of the external
transistor, a TVS diode is required to prevent the disable
current or pin leakage from pulling INFET all the way to
No problem. But on page 35, the schematic shows the symbol for a bidirectional TVS (D4). It also states D4's part number is CMDZZ5245B which is a simple Zener, not a bidirectional TVS...
I assume a Zener or unidirectional TVS will be fine? Or should a bidirectional TVS be used as the schematic symbol suggests?