| 摘要 |
A brown out detector (BOD), configured to provide a BOD reset in the event of a brown out event, is provided. The BOD includes means for tracking a reference voltage that is updated through duty cycling schemes so as to reduce power consumption, as well as means for detecting a falling flank of a supply voltage so as to optimize response times. More specifically, the BOD includes at least one track module, at least one sample module, at least one detector module and at least one comparator. The comparator is configured to compare a duty cycled tracked reference voltage with a duty cycled sampled reference voltage and to output a BOD reset if the tracked reference voltage is less than the sampled reference voltage. The comparator is further capable of exhibiting improved response times when a boost current is received. The boost current is provided by the detector module when the supply voltage falls beyond a predetermined threshold. |
