A DETECTION CIRCUIT FOR FAILED DC VOLTAGE BY THE OUTPUT VOLTAGE LEVEL ON THE PAD

摘要

PURPOSE: A circuit for detecting a defect of a direct voltage according to an output voltage level of a pad is provided to test the reliability of a direct voltage generator by finding the direct voltage generator with a defect. CONSTITUTION: A circuit for detecting a defect of a direct voltage according to an output voltage level of a pad comprises a reference voltage generation block(10), a voltage level detection block(20), a decoder block(30), and a variable output voltage generation block(40). The reference voltage generation block(10) generates a reference voltage. The voltage level detection block(20) detects a comparative level for detecting a defect of a direct voltage by using the reference voltage. The decoder block(30) determines a valid level of the detected voltage. The variable output voltage generation block(40) generates a variable output voltage.