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STRG6651

Allegro Microsystems
Part Number STRG6651
Manufacturer Allegro Microsystems
Description Off-Line Quasi-Resonant Flyback Switching Regulator
Published Jun 3, 2005
Detailed Description Data Sheet 28102.9A STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR OSC. FDBK LATCH UVLO OVP TSD VIN...
Datasheet PDF File STRG6651 PDF File

STRG6651
STRG6651

Overview
Data Sheet 28102.
9A STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR OSC.
FDBK LATCH UVLO OVP TSD VIN OCP 5 OVERCURRENT & FEEDBACK SUPPLY 4 GROUND 3 SOURCE 2 DRAIN 1 Dwg.
PK-011 ABSOLUTE MAXIMUM RATINGS at TA = +25°C Control Supply Voltage, VIN .
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35 V Drain-Source Voltage, VDS .
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650 V Drain Current, ID continuous .
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7 A single-pulse, tw ≤ 1 ms .
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7.
2 A Avalanche Energy, EAS single-pulse .
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158 mJ Over-Current Protection Voltage Range, VOCP .
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-0.
3 V to +6 V Insulation RMS Voltage, VWM(RMS) .
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2000 V Package Power Dissipation, PD control (VIN x IIN(ON)) .
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8 W total .
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See Graph FET Channel Temperature, TJ .
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+150°C Internal Frame Temperature, TF .
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+125°C Operating Temperature Range, TA .
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-20°C to +125°C Storage Temperature Range, TS .
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-40°C to +125°C The STR-G6651 is specifically designed to satisfy the requirements for increased integration and reliability in off-line quasi-resonant flyback converters.
This device incorporates the primary control and drive circuit with a discrete avalanche-rated power MOSFET.
Cycle-by-cycle current limiting, under-voltage lockout with hysteresis, over-voltage protection, and thermal shutdown protects the power supply during the normal overload and fault conditions.
Over-voltage protection and thermal shutdown are latched after a short delay.
The latch may be reset by cycling the input supply.
Low-current startup and a low-power standby mode selected from the secondary circuit completes a comprehensive suite of features.
The device is provided in a five-pin over-molded TO-220 style package, affording dielectric isolation without compromising thermal characteristics.
Two lead forms are available (with and without the suffix ‘-LF’) to acco...


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