Mosfet High Side Switching

With adjustable current limit high accuracy current sense and a wide range of rdsons our smart high side switches provide the optimal solution for your specific use case.

Mosfet high side switching. A high side p channel mosfet and a low side n channel mosfet tied with common drains figure 5 make a superb high current ªcmos equivalentº switch. This transistor connects between v and the load. With our switch portfolio you can find a protection solution for your inductive capacitive and resistive loads ensuring your design is scalable and robust. The opposite of the low side switch is the high side switch.

Circuit diagram of mosfet as high side switch 1 dual power supply this method is very simple but it needs two power source. N channel p channel 15. A drivers inputs are typically logic level. For an n channel mosfet the source connects to ground and the drain connects to the negative side of the load.

2 using bootstrap circuit in this method a single power source is needed using some capacitor in the circuit. In this method the voltage is applied. Driver ic s are often used for high current mosfets and when using fast switching rates due to the mosfet needing brief but high currents to change state. Often mosfets require a 1 2a drive to achieve switching efficiently at frequencies of hundreds of kilohertz.

Mosfet as a switch.