Method and apparatus for integrated circuit protection

US9263431B2 · kind B2 · utility

Assignee

• FAIRCHILD SEMICONDUCTOR CORPORATION · US

Inventors

• Sam Zheng · Shanghai, CN
• Gary Sun · Shanghai, CN
• Steven Leibiger · Falmouth, US
• Tyler Daigle · Scarborough, US
• Julie Lynn Stultz · Scarborough, US

Key dates

• Filing date: Apr 12, 2013
• Grant date: Feb 16, 2016
• Expiry date: Oct 10, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D89/611

Abstract

In certain examples an integrated circuit protection circuit can include a circuit module, and an isolation device. The isolation device can be configured to couple a ground node of the circuit module to a power ground in an on state, and to isolate the ground node of the circuit module from the power ground in an off state, wherein the isolation module is configured to enter the off state when the IC receives a negative input voltage.