Integrated circuit control of anti-series switches

An integrated circuit to control at least one off-chip anti-series switch having two transistors in series between two switch terminals, the transistors having their sources connected at an external intermediate node and their gates connected at a shared gate node, the integrated circuit comprising:

• a set of integrated circuit pins for coupling on-chip circuitry to off-chip components, the set including:
• a gate pin that couples to the shared gate node of said at least one off-chip anti-series switch;
• two terminal pins that couple to the two switch terminals of said at least one off-chip anti-series switch;
• an on-chip anti-series switch including two integrated transistors between the two terminal pins, the two integrated transistors operating to create an internal reference voltage on an internal intermediate node that connects their sources, the internal reference voltage mirroring a voltage of the external intermediate node without having a direct connection to the external intermediate node;
• and
• an on-chip controller with a predriver that drives the gate pin relative to the reference voltage.