In-vehicle semiconductor circuit and semiconductor circuit
AssigneeFuji Electric Co., Ltd.
InventorsMutsuo Nishikawa, Hirofumi Kato
Life of this patent
Estimating the term…
Abstract
Provided is a semiconductor circuit connected to a load circuit and configured to control power supply to the load circuit, comprising: a power line to which a power voltage is applied; an overvoltage protection unit that has an output unit configured to interrupt power supply from the power line to the load circuit when the power voltage in the power line is overvoltage; and a state notification unit configured to notify the outside of a state signal indicating whether the output unit is interrupting the power supply.
Claims20
A semiconductor circuit connected to a load circuit and configured to control power supply to the load circuit, comprising:
- a power line to which a power voltage is applied;
- an overvoltage protection unit that has an output unit configured to interrupt power supply from the power line to the load circuit when the power voltage in the power line is overvoltage;
- a state notification unit configured to notify an external circuit different from the load circuit of a state signal indicating whether the output unit is interrupting the power supply;
- and
- a state notification line configured to output voltage from the load circuit and the state signal to the external circuit.
A semiconductor circuit connected to a load circuit and configured to control power supply to the load circuit, comprising:
- a power line to which a power voltage is applied;
- an overvoltage protection unit that has an output unit configured to interrupt power supply from the power line to the load circuit when the power voltage in the power line is overvoltage;
- a state notification unit configured to notify an external circuit different from the load circuit of a state signal indicating whether the output unit is interrupting the power supply;
- a disconnection detection unit configured to notify the external circuit of a disconnection signal indicating whether the semiconductor circuit is disconnected;
- and
- a state notification line configured to output voltage from the load circuit, the state signal, and the disconnection signal to the external circuit.
Dependencies are inferred from the claim text.