Method of controlling the slew rate of a MOSFET and apparatus thereof

An apparatus for controlling a slew rate of a MOSFET connected to a battery for supplying an electrical current to an electrical load, the apparatus comprising:

• a sensor circuit configured to sense a state transition of the MOSFET;
• a monitoring circuit configured to monitor a drain-source voltage of the MOSFET;
• a pre-driver circuit that comprises a first current generator, a first switch, a second current generator, and a second switch, the first switch and the second switch being switchable, respectively, between an open position and a closed position;
• the first current generator arranged between a feeding node and a first intermediate node, and the first switch, in the closed position, configured to bypass the first current generator;
• the second current generator arranged between a second intermediate node and a ground node, and the second switch, in the closed position, configured to bypass the second current generator,
• the pre-driver circuit configured to, in a first time period, provide a variable current through a gate of the MOSFET with one of the first switch and the second switch in the closed position, the drain-source voltage monitored by the monitoring circuit failing to satisfy a predefined condition that is a function of a battery voltage of the battery during the first time period;
• and
• the pre-driver circuit configured to, in a second time period that is subsequent the first time period, provide a constant current through the gate with the one of the first switch and the second switch in the open position, the drain-source voltage monitored by the monitoring circuit satisfying the predefined condition during the second time period.