Driver circuit, corresponding device and method

A method for driving an electronic switch coupled between a first terminal and a second terminal, the method comprising:

• generating a bias current;
• turning on a first switch coupled to a first current mirror loop and turning off a second switch coupled to a second current mirror loop and a third switch coupled to a third current mirror loop, or turning on the second switch and turning off the first switch and the third switch;
• generating a first mirrored current based on the bias current;
• increasing a first voltage between the first terminal and the second terminal based on the first mirrored current;
• clamping the first voltage with a clamp circuit coupled between the first terminal and the second terminal;
• increasing a second mirrored current after clamping the first voltage;
• and
• reducing the first mirrored current based on the second mirrored current.

A driver comprising:

• a first output node;
• a second output node;
• a bias current circuit;
• a first switch coupled to the bias current circuit;
• a first current mirror having a first transistor coupled to the bias current circuit via the first switch and a second transistor;
• a second current mirror having a first transistor coupled to the second transistor of the first current mirror and a second transistor coupled to the second output node;
• a third current mirror having a first transistor coupled to the second output node and a second transistor;
• a fourth current mirror having a first transistor coupled to the second transistor of the third current mirror and a second transistor
• a fifth current mirror having a first transistor coupled to the second transistor of the fourth current mirror and a second transistor coupled to the second transistor of the first current mirror;
• a second switch coupled to the bias current circuit;
• a sixth current mirror having a first transistor coupled to the bias current circuit via the second switch and a second transistor coupled to the first output node;
• a third switch coupled to the bias current circuit;
• a seventh current mirror having a first transistor coupled to the bias current circuit via the third switch and a second transistor;
• and
• an eighth current mirror having a first transistor coupled to the second transistor of the seventh current mirror and a second transistor coupled between the first output node and the second output node.