LinkSwitch-TN Family:LinkSwitch-TN combines a high voltage power MOSFET switch with an ON/OFF controller in one device. It is completely selfpowered from the DRAIN pin, has a jittered switching frequency for low EMI and is fully fault protected. Auto-restart limits device and circuit dissipation during overload and output short circuit (LNK304-306) while over temperature protection disables the internal MOSFET during thermal faults. The high thermal shutdown threshold is ideal for applications where the ambient temperature is high while the large hysteresis protects the PCB and surrounding components from high average temperatures.