| CPC H03K 17/08122 (2013.01) [H03K 17/08128 (2013.01); H03K 2017/0806 (2013.01)] | 10 Claims |
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1. A semiconductor device for operating a load, comprising:
an output element connected to the load and configured to perform switching to operate the load;
a drive circuit configured to output a drive signal to the output element, to thereby cause the output element to perform the switching;
an external terminal configured to be connected to a constant current source that is external to the semiconductor device, and to receive a constant current output from the constant current source;
a temperature sensor connected to the external terminal and configured to
operate with the constant current,
detect a temperature of the output element, and
output a temperature detection value;
a temperature state detection circuit configured to output a temperature state of the output element, based on a result of comparing the temperature detection value with a reference threshold; and
an abnormal level notification circuit configured to send out a notification upon determining that the temperature state is at an abnormal level.
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