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SQ6601PT

AUK
Part Number SQ6601PT
Manufacturer AUK
Description Off-Line Quasi-Resonance Flyback Switching Regulator
Published Dec 23, 2009
Detailed Description Semiconductor SQ6601PT Off-Line Quasi-Resonance Flyback Switching Regulator Description The SQ6601PT is a hybrid IC co...
Datasheet PDF File SQ6601PT PDF File

SQ6601PT
SQ6601PT

Overview
Semiconductor SQ6601PT Off-Line Quasi-Resonance Flyback Switching Regulator Description The SQ6601PT is a hybrid IC consists from power MOSFET and a controller IC, designed for Indirect feed-back Quasi-Resonant (including low frequency PRC)fly-back converter type SMPS (Switching Mode Power Supply) applications.
this IC realizes high efficiency, low noise, downsizing and standardizing of a power supply system reducing external components count and simplifying the circuit designs.
the device is provided in a five pin overmolded TO-220 style package, affording dielectric isolation without compromising thermal characteristics.
(Note).
PRC is abbreviation of “Pulse Ratio Control” (On-width control with fixed OFF-time).
Features • Quasi-Resonant Operation • Low-loss, Pulse-Ration-Control standby mode • Under-voltage lockout with Hysteresis • Adjustable switching speed for EMI control • Low start-up circuit current (100uA max) • Active low-pass filter for stabilizing the operation in case of light load • Avalanche Energy Guaranteed MOSFET with high VDSS • Built-in constant voltage drive circuit • Built-in step drive circuit • Built-in low frequency PRC mode (≒20kHz) • Pulse-by-pulse Overcurrent Protection (OCP) • Overvoltage Protection with latch mode (OVP) • Thermal Shutdown with latch mode (TSD) • Over-molded Five-Pin Package www.
DataSheet4U.
com Ordering Information Type NO.
SQ6601PT Marking SQ6601PT Package Code TO-220F-5FL Package Outline TO-220 Fullpack (5 Lead) KSD-I0U001-000 1 SQ6601PT Internal Block Diagram Pin Function Pin Number 1 2 3 4 5 Pin Name Drain Source GND Vcc FB/OCP Power Switch MOSFET Drain Part Power Switch MOSFET Source Part Ground of the Control Section Supply Voltage of Output Drive & Control Section Voltage Mode Control Feedback Signal & Over Current Detection Pin Function Typical Connection Diagram www.
DataSheet4U.
com SQ6601PT KSD-I0U001-000 2 SQ6601PT Absolute maximum ratings (Ta=25°C, Unless otherwise specified) Characteristic Dr...


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