Totem-pole circuit driver
Abstract:
A driver circuit for driving a totem-pole circuit including cascade-connected high-side and low-side power devices. The driver circuit includes high-side and low-side drive circuits which respectively drive the high-side and low-side power devices, a pulse generation circuit which generates set and reset signals based on a high-side input logic signal, a level shift circuit which transmits the set and reset signals to the high-side drive circuit, a high-side potential detection circuit which detects a high-side reference potential, a high-side potential determination circuit which outputs an event signal upon detecting that the high-side reference potential exceeds a reference voltage, and an on-pulse stop circuit which validates or invalidates a low-side input logic signal based on the high-side input logic signal and the event signal. When the high-side input logic signal is at a low level and upon receiving the event signal, the on-pulse stop circuit invalidates the low-side input logic signal.
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