18885982. SEMICONDUCTOR DEVICE, ELECTRONIC APPARATUS AND VEHICLE (Rohm Co., Ltd.)
SEMICONDUCTOR DEVICE, ELECTRONIC APPARATUS AND VEHICLE
Organization Name
Inventor(s)
Shuntaro Takahashi of KYOTO JP
SEMICONDUCTOR DEVICE, ELECTRONIC APPARATUS AND VEHICLE
This abstract first appeared for US patent application 18885982 titled 'SEMICONDUCTOR DEVICE, ELECTRONIC APPARATUS AND VEHICLE
Original Abstract Submitted
The present disclosure provides a semiconductor device. The semiconductor device includes: a semiconductor substrate; a well, formed in the semiconductor substrate; an output terminal, electrically connected to the semiconductor substrate; a ground terminal, configured to receive a ground voltage; a detection signal generating circuit, configured to generate a negative current detection signal when an output voltage present at the output terminal is detected to be less than the ground voltage; and a control circuit, configured to apply the ground voltage or the output voltage to the well in response to the negative current detection signal. The detection signal generating circuit includes: a comparator, configured to generate the negative current detection signal by comparing an output detection voltage with the ground voltage or the threshold voltage; a bias circuit, configured to switch between applying the output voltage or a bias voltage as the output detection voltage; and a clamp circuit.