| 摘要 |
PROBLEM TO BE SOLVED: To provide an overheat detection circuit which suppresses unintended erroneous output due to disturbance noise such as instant power supply voltage variation and which can quickly output an overheat-state detection signal in an overheat state.SOLUTION: An overheat detection circuit includes: a temperature sensitive part 211; a comparator 212; and a disturbance noise removal part 110 for outputting an overheat-state detection signal to an output part after a predetermined delay time. The delay time is shortened in proportion to temperature.SELECTED DRAWING: Figure 1 |
