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STR-S6529 Datasheet(PDF) 1 Page - Allegro MicroSystems |
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STR-S6529 Datasheet(HTML) 1 Page - Allegro MicroSystems |
1 / 6 page DISCONTINUED PRODUCT — FOR REFERENCE ONL Y 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 ava- lanche-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 over- molded 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. FEATURES s Quasi-Resonant Ringing Choke Converter s Avalanche-Rated Power MOSFET Switch s Pulse-by-Pulse Current Limiting s Latched Over-Voltage and Thermal Protection s Maximum ON Time and OFF Time Set During Manufacture s Internal Under-Voltage Lockout with Hysteresis s Over-Molded SIP with Integral Isolated Heat Spreader Always order by complete part number: STR-M6529 . OFF-LINE SWITCHING REGULATOR – WITH POWER MOSFET OUTPUT STR-M6529 SOURCE DRAIN UVLO COMMON V IN OVER-CURRENT PROTECTION Dwg. PK-002 FAULT-LATCH TRIGGER & SOFT START FDBK FAULT LATCH REF. 1 2 3 4 5 6 7 OSC. RS FAULT ABSOLUTE MAXIMUM RATINGS Supply Voltage, V IN ........................... 35 V Drain-Source Voltage, V DS .............. 800 V Continuous Drain Current, I D ............ 5.4 A 1 ms Single-Pulse Drain Current, I DM ................................................. 20 A Single-Pulse Avalanche Energy, E A .............................................. 400 mJ Soft-Start/Fault-Latch Trig. Voltage, V SS/FL ............................................. 12 V Feedback Input Current, I FDBK ........ 20 mA Over-Current Protection Voltage, V OCP ............................................. 3.5 V Insulation Voltage,V WM(RMS) ........... 2000 V Package Power Diss., P D ........ See Graph FET Junction Temperature, T J ...... +150°C Internal Frame Temperature, T F ... +125°C Operating Temperature Range, T A ............................... -20°C to +125°C Storage Temperature Range, T stg ............................. -40°C to +125°C ™ |
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