发明名称 |
Method for regulating temperature and circuit therefor |
摘要 |
A method and circuit for managing thermal performance of an integrated circuit. Temperature sensing circuits and a plurality of power FETs that are coupled together in parallel are manufactured from a semiconductor substrate. Each temperature sensing circuit monitors the temperature of the portion of the semiconductor substrate near or including a corresponding power FET. When the temperature of the semiconductor substrate near one or more of the power FETs reaches a predetermined value, the corresponding temperature sensing circuit reduces a voltage appearing on the gate of the power FET. The reduced voltage increases the on-resistance of the power FET and channels a portion of its current to others of the plurality of power FETs. The power FET continues operating but with a reduced current flow. When the temperature of the semiconductor substrate falls below the predetermined value, the gate voltage of the power FET is increased to its nominal value.
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申请公布号 |
US7521985(B2) |
申请公布日期 |
2009.04.21 |
申请号 |
US20050171018 |
申请日期 |
2005.07.01 |
申请人 |
SEMICONDUCTOR COMPONENTS INDUSTRIES, L.L.C. |
发明人 |
BALL ALAN R.;ROBB STEPHEN P. |
分类号 |
H03K17/14 |
主分类号 |
H03K17/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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