Drain of the internal MOSFET; connects to the primary transformer winding. S/GND Source of the MOSFET and common ground. 3 GND Ground reference for control circuitry. 4 Vcc
| Protection | Trigger Condition | Action | Recovery | |------------|------------------|--------|----------| | Overload (OLP) | FB voltage > 5V for > 30ms | Gate drive stops | Auto-restart (VCC cycles) | | Overvoltage (OVP) | VCC > 29V | Latch off | AC power recycle | | Thermal Shutdown (TSD) | ( T_j > 140^\circ C ) | Latch off | AC power recycle | | Overcurrent (OCP) | Sense voltage > internal threshold | Pulse-by-pulse limiting | Automatic | str w6553a datasheet
Includes built-in Thermal Shutdown (TSD), Overvoltage Protection (OVP), and Overload Protection (OLP) with auto-restart . Drain of the internal MOSFET; connects to the