High Side Switch with Input Overvoltage and Overcurrent Protection

The project here is a  48V  protected, high side switch designed to switch a  5A  output load from input voltages from  8V to 48V. The circuit helps the user to easily ON/OFF the high current and voltage load with over-voltage lockout and over-current protection. The wide input range and low shutdown current (1μA typical) make it suitable for automotive, industrial, medical instruments, and telecom applications. This board offers a low  50ns  (typical) propagation delay, fast switching times (<10ns), and 100% duty cycle operation. The project is based on  LTC7000  which is a fast high voltage protected high side N-channel MOSFET driver. An internal charge pump fully enhances an external N-channel MOSFET switch, allowing it to remain on indefinitely. Its powerful gate driver can drive large gate capacitance MOSFETs with very short transition times, ideal for both high-frequency switching and static switch applications.