Texas Instruments Incorporated
Optimized Low Ron Flatness Gate Driver

Abstract:

An analog switch includes a first field effect transistor (FET) which has a first terminal coupled to an input voltage terminal, a second terminal coupled to a common source, and a control terminal coupled to a common gate. The switch includes a second FET which has a first terminal coupled to an output voltage terminal, a second terminal coupled to the common source, and a control terminal coupled to the common gate. The switch includes a switched current source which has an input coupled to a high voltage supply terminal and an output coupled to the common gate. The switch includes a clamp circuit which has a first terminal coupled to the common gate, a second terminal coupled to the common source, and a third terminal coupled to the low voltage supply terminal.