STRM6529

STR-M6529 OFF-LINE SWITCHING REGULATOR – WITH POWER MOSFET OUTPUT DRAIN 1 OSC. FAULT LATCH Data Sheet 28102.1 SOURCE 2 R COMMON OVER-CURRENT PROTECTION V IN S The STR-M6529 is specifically designed to meet the requirement for increased integration and reliability in off-line flyback converters operating in the quasi-resonant ringing choke mode. The device incorporates the primary control and drive circuit with a discrete avalanche-rated high-voltage power MOSFET. Crucial system parameters such as maximum ON time and OFF time are fixed during manufacture. Local control circuit decoupling and layout are optimized within the device. Cycle-by-cycle current limiting, soft start, under-voltage lock-out with hysteresis, over-voltage protection, and thermal shutdown protect the devices during all normal and overload conditions. Over-voltage protection, thermal shutdown, or an external fault signal are latched. The dual requirements of dielectric isolation and low transient thermal impedance and steady-state thermal resistance are satisfied in an overmolded single-in-line power package. Proven in substantial volumes, this device and its fixed-frequency counterparts represents a significant advance in off-line SMPS reliability growth and integration. 3 + FAULT 4 5 UVLO FDBK FAULT-LATCH TRIGGER & SOFT START 6 REF. 7 Dwg. PK-002 ABSOLUTE MAXIMUM RATINGS Supply Voltage, VIN ........................... 35 V Drain-Source Voltage, VDS .............. 800 V Continuous Drain Cur...