| 摘要 |
An-under-voltage detection (UVD) circuit includes a comparator 1 for determining the amount by which a voltage supply V<SUB>supply </SUB>falls short of a reference voltage V<SUB>ref</SUB>, and an integrator 3 for time-integrating this shortfall. In a glitch immunce operating mode of the UVD circuit, a reset is generated using this integrated value. A reset is only generated in the case that a glitch in the supply voltage V<SUB>supply </SUB>has a duration longer than a critical duration. The critical duration depends upon the magnitude of the glitch and the component values of the integrator 3.
|
