Method and apparatus for a brown out detector

摘要

The disclosure provides a detector that includes a pre-charge circuit. The pre-charge circuit receives a supply voltage. A pre-charged comparator is coupled to the pre-charge circuit and receives the supply voltage. The pre-charged comparator generates a transition signal at a transition node. A slope of the transition signal is greater than a slope of the supply voltage. A first diode connected transistor receives the supply voltage. A first capacitor is coupled to the first diode connected transistor. An inverter is coupled to the first diode connected transistor and generates an enable signal when the supply voltage is below a threshold voltage.

主权项

1. A detector comprising:
a pre-charge circuit configured to receive a supply voltage; a pre-charged comparator coupled to the pre-charge circuit and configured to receive the supply voltage and configured to generate a transition signal at a transition node, wherein a slope of the transition signal is greater than a slope of the supply voltage; a diode connected transistor configured to receive the supply voltage; a capacitor coupled to the diode connected transistor; and an inverter coupled to the diode connected transistor, the inverter having an input coupled to the transition node, and being configured to generate an enable signal when the supply voltage is below a threshold voltage.