A low-cost, smart-power BiCMOS driver chip for medium power applications

A smart-power integrated circuit has been developed intended for low-cost, medium power switching, and drive applications. The die incorporates CMOS digital control logic and bipolar drivers, with BiCMOS interface between the two technologies. Modeling and optimization of process and circuit parameters resulted in a 7.66 mm/sup 2/ chip with four independently controlled outputs each capable of switching up to 1 ampere at 30 volts, at a frequency of up to 2 MHz.<
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