Driver discharge circuit

A driver, comprising:

• a first switch having a switch control input;
• a second switch coupled between a voltage supply terminal and the first switch at a switch output;
• a first transistor having a first control input and first and second current terminals;
• a resistor coupled between the voltage supply terminal and the first control input;
• a configurable voltage clamp circuit having a voltage clamp control input and a voltage clamp circuit output, the voltage clamp circuit output coupled to the first control input;
• a second transistor having a second control input and third and fourth current terminals, the second control input coupled to the second current terminal, and the third current terminal coupled to the voltage supply terminal;
• and
• a logic circuit including a one-shot circuit, the logic circuit coupled to the voltage supply terminal, the switch control input, and the voltage clamp control input, the logic circuit to configure the configurable voltage clamp circuit for a first clamp voltage at the voltage clamp circuit output responsive to the first switch being turned ON and for a second clamp voltage at the voltage clamp circuit output responsive to a voltage on the switch output reaching a threshold associated with a voltage on the voltage supply terminal.

A driver, comprising:

• a first switch;
• a second switch coupled between a voltage supply terminal and the first switch at a switch output;
• a comparator having a first comparator input, a second comparator input, and a comparator output, the first comparator input coupled to the voltage supply terminal, and the second comparator input coupled to the switch output;
• a first transistor having a first control input and first and second current terminals;
• a resistor coupled between the voltage supply terminal and the first control input;
• a plurality of Zener diodes coupled in series between the first control input and a ground terminal;
• a second transistor having a second control input and third and fourth current terminals, the second control input coupled to the second current terminal, and the third current terminal coupled to the voltage supply terminal;
• a third transistor coupled across some, but not all, of the plurality of Zener diodes, the third transistor having a third control input;
• and
• a logic gate having a logic gate input and a logic gate output, the logic gate input coupled to the comparator output, and the logic gate output coupled to the third control input.