Switching control circuit and semiconductor device

A semiconductor device comprising:

• a first switching device and a second switching device, and
• a switching control circuit configured to control switching of the first switching device and the second switching device,
• the switching control circuit including
• a signal output circuit configured to
• output a set signal to turn on the first switching device, in response to a logic level of an input signal of the switching control circuit reaching a first logic level, and
• output a reset signal to turn off the first switching device, in response to the logic level of the input signal reaching a second logic level,
• a level shifter circuit configured to shift a level of each of the set signal and the reset signal,
• a first driver circuit configured to drive the first switching device, in response to an output from the level shifter circuit,
• a power supply circuit configured to generate a second power supply voltage for the signal output circuit, based on a first power supply voltage, and
• a detection circuit configured to detect that the first power supply voltage, after dropping from a first level, has risen to a second level, wherein
• the signal output circuit is configured to output the reset signal, in response to the first power supply voltage being restored to the second level after dropping from the first level, when the logic level of the input signal is the second logic level,
• the level of each of the set signal and the reset signal changes according to the level of the second power supply voltage, and
• the level shifter circuit is configured to identify the reset signal upon the reset signal being outputted when the first power supply voltage is at or above the second level.