CIRCUIT FOR MULTIPLEXING DIGITAL AND ANALOG INFORMATION VIA SINGLE PIN OF DRIVER FOR SWITCHED MOSFETS OF DC-DC CONVERTER

摘要

Multiple characteristics of a DC-DC converter, such as its mode of operation (e.g., either forced continuous conduction mode, or discontinuous conduction mode), and an operational parameter (such as the dead-time between switching times of the output switching devices (upper and lower MOSFETs) of the converter, whose associated driver integrated circuit has a pin usage that leaves only a single pin available for auxiliary purposes, are programmed by a single pin-based digital and analog information extracting circuit that couples both digital information and analog information within the same control signal to the driver IC by way of only the one available pin.