| 摘要 |
PROBLEM TO BE SOLVED: To provide an overheat detection circuit having a small circuit scale, being of low cost, with less power consumption.SOLUTION: There are provided a reference voltage circuit connected between a base and an emitter of a parasitic bipolar transistor, and a current detection circuit connected to an emitter of the parasitic bipolar transistor. The current detection circuit detects that current flows the parasitic bipolar transistor and outputs an overheat detection signal, relating to the overheat detection circuit configured in a CMOS semiconductor device.SELECTED DRAWING: Figure 1 |
