Semiconductor device
AssigneeFuji Electric Co., Ltd.
InventorMasashi Hoya
Life of this patent
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Abstract
Provided is a semiconductor device comprising a high-side switching device, a low-side switching device, a high-side driver configured to turn on/off the high-side switching device, a low-side driver configured to turn on/off the low-side switching device, a high-side driving external terminal configured to supply a power supply voltage for driving the high-side driver, and a protection circuit section connected to the high-side driving external terminal. The high-side driver may include a reference potential terminal set to a reference potential of the high-side driver. The protection circuit section may be connected between the high-side driving external terminal and the reference potential terminal.
Claims22
A semiconductor device comprising:
- a high-side switching device;
- a low-side switching device;
- a high-side driver configured to turn on/off the high-side switching device;
- a low-side driver configured to turn on/off the low-side switching device;
- a high-side driving external terminal connected to a first terminal of a bootstrap capacitor for receiving a power supply voltage for driving the high-side driver;
- a protection circuit section connected between the high-side driving external terminal and a reference potential terminal of the high side driver;
- an output external terminal outputs an output signal of the high-side switching device and the low-side switching device;
- wherein the high-side driving external terminal is connected to a high-side power supply terminal of the high-side driver and a cathode of a bootstrap diode,
- wherein the high-side driver includes the reference potential terminal set to a reference potential of the high-side driver and the high-side power supply terminal set to the power supply voltage of the high-side driver,
- wherein the output external terminal is connected to the reference potential terminal of the high-side driver and is configured to be connected to a second terminal of the bootstrap capacitor, and
- wherein the protection circuit section is connected between the high-side driving external terminal and the reference potential terminal.
Dependencies are inferred from the claim text.