It is a classic high-voltage power semiconductor switching device, with the core feature that the gate, source, and drain are all located on the chip surface, and the current channel is parallel to the silicon wafer surface. It has mature technology and high reliability, but its on-resistance is relatively high. It is mainly used in medium and high voltage scenarios that are sensitive to stability and cost.

Features:
High voltage resistance, generally 200V~1000V or even higher
Mature technology, high reliability, and strong anti-interference capability
Compared to trench MOS, it has a higher on-resistance, but better high-temperature stability and avalanche capability
Voltage-driven, fast switching speed, no secondary breakdown

Typical Applications:
1. Switching power supply
    Adapters, chargers, LED drivers, PC power supplies
    Industrial AC-DC, high-voltage flyback/forward power supply
2. Lighting and home appliances
    Electronic ballasts, energy-saving lamps, LED drive power supplies
    Internal drive circuits of refrigerators, air conditioners, and washing machines
3. Industrial control
    Relay drive, solenoid valve control
    Small frequency converter, UPS auxiliary power supply
4. Automotive Electronics
    Headlight control, windshield wipers, and onboard small power supply
    Part of the high-voltage drive circuit that is not the main power
5. Other high-pressure scenarios
    High-voltage discharge, electrostatic control, and auxiliary circuit of electric welding machine
    Photovoltaic micro-inverter, battery protection high-voltage side