Patent ID: 7525353
Filing Date: 2009-04-28
Classification: G01R,G06F,H03K

Abstract:
1. A brown out detector, comprising: a first resistive element connected to a first voltage and a first node; a capacitor connected to the first node and a second voltage; a second transistor having a drain connected to a second node, a source connected to the first node, and a gate connected to the first voltage; a third transistor having a source connected to the second voltage, a drain connected to the second node, and a gate connected to the first voltage; a fourth transistor having a source connected to the second voltage, a drain connected to a first detector output, and a gate connected to the second node; and a fifth transistor having a drain connected to a second detector output, a source connected to the first node, and a gate connected to the first voltage, wherein the first detector output and the second detector output generate a reset signal when the first voltage is less than a detection threshold voltage.