Semiconductor device
AssigneeRenesas Electronics Corporation
InventorsNaohiro YOSHIMURA, Osamu SOMA
Life of this patent
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Abstract
The power control device reliably disconnects the current path of the failed output transistor. In particular, the power control device includes output transistors, an output terminal, bonding wires connecting the output transistors to the output terminal, output transistor driving circuits controlling the output of the output transistors, and a failure detection circuit detecting the failure of the output transistors. When the failure detection circuit detects the failure of the output transistors and outputs the failure detection signals, the output transistor drive circuits control the outputs of the output transistors so that a larger current flows through the bonding wires than when the failure is not detected.
Claims12
A semiconductor device, comprising:
- an output transistor;
- an output terminal;
- a bonding wire connecting the output transistor and the output terminal;
- an output transistor driving circuit for controlling an output of the output transistor;
- and
- a failure detection circuit for detecting a failure of the output transistor,
- wherein when the failure detection circuit detects a failure of the output transistor and outputs a failure detection signal, the output transistor driving circuit controls an output of the output transistor so that a current larger than that at the time of failure non-detection flows through the bonding wire.
Dependencies are inferred from the claim text.