STRS6513

STR-S6513 OFF-LINE SWITCHING REGULATOR – WITH POWER MOSFET OUTPUT DRAIN 1 OSC. FAULT LATCH Data Sheet 28102.10 SOURCE 2 R COMMON OVER-CURRENT PROTECTION V IN S The STR-S6513 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 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 device 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. A similar off-line switching regulator, with an output rating of 600 V at 6 A, is also available. 3 + FAULT 4 5 UVLO FDBK FAULT-LATCH TRIGGER & SOFT START 6 REF. 7 8 9 Dwg. PK-002-2 ABSOLUTE MAXIMUM RATINGS Supply Voltage, VIN ........................... 35 V Drain-Source Voltage, VDS .............. 400 V Continuous Drain Current, ID ............. 10 A 1 ms Single-Pulse Drain Current, IDM ................................................. 40 A Single-Pulse Avalanche Energy, EA .............................................. 400 mJ Soft-Start/Fault-Latch Trigger Voltage, VSS/FL ............................................. 10 V Feedback Input Current, IFDBK ........ 20 mA Over-Current Protection Voltage, VOCP ............................................. 3.5 V Insulation Voltage,VWM(RMS) ........... 2000 V Package Power Diss., PD ........ See Graph I D C S N O F I T U N D E R P N E UY DL O N O T C E C 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 R O R F E R E FET Junction Temperature, TJ ...... +150 °C Internal Frame Temperature, TF ... +125 °C Operating Temperature Range, TA ............................... -20°C to +125°C Storage Temperature Range, Tstg ............................. -40°C to +125°C — Always order by complete part number: STR-S6513 . ™ STR-S6513 OFF-LINE SWITCHING REGULATOR FUNCTIONAL BLOCK DIAGRAM V IN 5 NO CONNECTION 8 9 UVLO OVER-VOLT. PROTECT R FAULT LATCH S Q 1 2 DRAIN SOURCE REF. 3.3 kΩ TSD OSC. FAULT-LATCH TRIGGER & SOFT START 7 TRIGGER 1 kΩ Rton Rtoff + 0.75 V 4 OVER-CURRENT PROTECTION 6.8 kΩ 1000 pF 0.01 µF 3 COMMON 6 FDBK Dwg. FK-002-3 ALLOWABLE PACKAGE POWER DISSIPATION 60 100 MAXIMUM SAFE OPERATING AREA ALLOWABLE PACKAGE POWER DISSIPATION in WATTS 54 W MOUNTING SURFACE TEMPERATURE 30 40 RECOMMENDED MAX. FRAME TEMP. = +100°C DRAIN CURRENT in AMPERES LIMITED BY r DS(on) 10 3.0 LIMITED BY FRAME TEMP. = +125°C MAX. 20 EH EA T 1.0 NO HEAT SINK NATURAL COOLING TA = +25°C SIN K FREE AIR 3.2 W 0 20 60 100 TEMPERATURE in °C 140 Dwg. GK-003-2 0.3 0.1 3.0 10 30 100 300 Dwg. GK-004-3 DRAIN-TO-SOURCE VOLTAGE in VOLTS 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 1994 Allegro MicroSystems, Inc. LIMITED BY V DS max w= 0.1 ms SIN GL t EP w= UL 1m SE sS ING t w= LE 10 PU ms LS E SIN GL EP UL IN SE FIN IT t ™ STR-S6513 OFF-LINE SWITCHING REGULATOR 600 ALLOWABLE AVALANCHE ENERGY in mJ 500 SINGLE PULSE DRAIN CURRENT = 5 A SUPPLY VOLTAGE = 50 V ALLOWABLE AVALANCHE ENERGY 400 300 200 100 0 0 20 40 80 120 60 100 STARTING CHANNEL TEMPERATURE in °C 140 160 Dwg. GK-009-1 ELECTRICAL CHARACTERISTICS at TA = +25°C, VIN = 18 V, voltage measurements are referenced to Common (pin 3) (unless otherwise noted). Characteristic On-State Voltage Under-Voltage Lockout Over-Voltage Threshold FET Leakage Current FET ON Resistance Output Fall Time Maximum ON Time Minimum OFF Time Over-Current Threshold Feedback Threshold Soft-Start Current Fault-Latch Threshold Volt. Fault-Latch Holding Current Fault-Latch Reset Voltage Insulation RMS Voltage Supply Current Thermal Shutdown Thermal Resistance Symbol V INT V INQ VOVP(th) IDSS rDS(on) tf ton toff VOCP(th) V FDBK(th) ISS V FL(th) IINH V INQ VWM(RMS) IIN(ON) IIN(OFF) TJ RθJM Test Conditions Turn-on, increasing VIN Turn-off, decreasing VIN VDS = 400 V VGS = 10 V, ID = 5.5 A VDD = 200 V, ID = 5 A, 10% to 90% VDS Limits Min. Typ. Max. 14.4 – 17.6 9.0 – 11 26 – 31 – – 300 – 0.45 0.58 – – 250 18 – 22 0.6 – 1.6 700 – 800 – 750 – -2.2 – -3.4 6.9 – 7.7 – 340 400 6.5 – 8.5 2000 – – 18 – 125 – – – 150 2.0 28 100 – – Units V V V µA Ω ns µs µs mV mV mA V µA V V mA µA °C °C/W VSS = 0 V VIN reduced to 8.5 V IIN