Mosfet High Side Switching

One fault common to such circuits has been the excessive crossover current during switching that may occur if the gate drive allows both mosfets to be on simultaneously.

Mosfet high side switching.

Mosfet as a switch. For an n channel mosfet the source connects to ground and the drain connects to the negative side of the load. In this method the voltage is applied. Circuit diagram of mosfet as high side switch 1 dual power supply this method is very simple but it needs two power source.

2 using bootstrap circuit in this method a single power source is needed using some capacitor in the circuit. 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. The opposite of the low side switch is the high side switch. 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.

N channel p channel 15. A drivers inputs are typically logic level. This transistor connects between v and the load. Here the operating conditions of the transistor are zero input gate voltage v in zero drain current i d and output voltage.

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.