OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR STR-G6651 spe
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STR-G6651
OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
STR-G6651 specifically designed satisfy requirements increased integration reliability off-line quasi-resonant flyback converters. This device incorporates primary control drive circuit with discrete avalanche-rated power MOSFET.
FDBK
OSC.
LATCH
UVLO
Cycle-by-cycle current limiting, under-voltage lockout with hysteresis, over-voltage protection, thermal shutdown protects power supply during normal overload fault conditions. Over-voltage protection thermal shutdown latched after short delay. latch reset cycling input supply. Low-current startup low-power standby mode selected from secondary circuit completes comprehensive suite features. device provided five-pin over-molded TO-220 style package, affording dielectric isolation without compromising thermal characteristics.
OVERCURRENT FEEDBACK
28102.9*
GROUND
SOURCE
Proven substantial volumes, STR-G6651 robust low-risk solution off-line power supplies particularly where management source significant element system design.
Dwg. PK-011
SUPPLY
DRAIN
ABSOLUTE MAXIMUM RATINGS +25°C
Control Supply Voltage, Drain-Source Voltage, Drain Current, continuous single-pulse, Avalanche Energy, single-pulse Over-Current Protection Voltage Range, VOCP -0.3 Insulation Voltage, VWM(RMS) 2000 Package Power Dissipation, control (VIN IIN(ON)) total Graph Channel Temperature, +150°C Internal Frame Temperature, +125°C Operating Temperature Range, -20°C +125°C Storage Temperature Range, -40°C +125°C
FEATURES
Quasi-Resonant Operation Output Power Low-Loss, Pulse-Ratio-Control Standby Mode Temperature-Compensated Pulse-by-Pulse Over-Current Protection Latched Over-Voltage Thermal Protection Under-Voltage Lockout with Hysteresis Active Low-Pass Filter Enhanced Light-Load Stability Switched Attenuation Leading-Edge Current-Sensing Signal Regulated Soft Gate Drive Adjustable Switching Speed Control Overmolded Five-Pin Package
Always order complete part number: STR-G6651
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
FUNCTIONAL BLOCK DIAGRAM
DRIVE REG. UVLO OVER-VOLT. PROTECT REF. FAULT LATCH DRAIN SOURCE
1.45 FEEDBACK OVER-CURRENT PROTECTION
1.35
0.73
GROUND
Dwg. FK-002-5
ALLOWABLE PACKAGE POWER DISSIPATION
MAXIMUM SAFE OPERATING AREA
ALLOWABLE PACKAGE POWER DISSIPATION WATTS
MOUNTING SURFACE TEMPERATURE
DRAIN CURRENT AMPERES
LIMITED rDS(on)
LIMITED
LIMITED FRAME TEMP. +125°C MAX.
HEAT SINK NATURAL COOLING +25°C 0.15
FREE CONTROLLER TEMPERATURE
Dwg. GK-003-4
0.05 1000
Dwg. GK-004-5
DRAIN-SOURCE VOLTAGE VOLTS
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright 1999 Allegro MicroSystems, Inc.
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
ELECTRICAL CHARACTERISTICS +25°C, voltage measurements referenced ground terminal (unless otherwise specified).
Limits Characteristic On-State Voltage Under-Voltage Lockout Over-Voltage Threshold Drain-Source Breakdown Voltage Drain Leakage Current On-State Resistance Maximum Time Minimum Pulse Duration Input Quasi-Resonant Signals Minimum Time Feedback Threshold Voltage Symbol VINT VINQ VOVP(th) V(BR)DSS IDSS rDS(on) toff tw(th) toff VFDBK Test Conditions Turn-on, increasing Turn-off, decreasing Turn-off, increasing +25°C Drain waveform high Drain waveform high1 Drain waveform high1 Drain waveform high1 Oscillation synchronized2 Over-Current Protection/Feedback Sink Current Latch Holding Current Latch Release Voltage Switching Time Supply Current IOCP/FB IIN(OVP) IIN(ON) IIN(OFF) Insulation Voltage Thermal Shutdown Thermal Resistance VWM(RMS) Output junction-to-mounting frame VOCP/FB reduced from 24.5 reduced from 24.5 Operating3 Increasing prior oscillation terminals simultaneous reference metal plate against backside Min. 14.4 20.5 0.68 2000 Typ. 22.5 0.73 1.45 1.35 Max. 17.6 24.5 0.78 1.63 Units °C/W
Notes: Typical Data design information only. Feedback square wave, quasi-resonant operation, input signal must longer than tw(th) greater than VFDBK Feedback square wave,
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
ALLOWABLE AVALANCHE ENERGY
ALLOWABLE AVALANCHE ENERGY
SINGLE PULSE DRAIN CURRENT
STARTING CHANNEL TEMPERATURE
Dwg. GK-009-2
STR-G6600 Series Drain-Source Drain-Source Output Breakdown Voltage Resistance V(BR)DS, Minimum rDS(on), Maximum 100/120 Input STR-G6622 STR-G6624 STR-G6632 STR-G6651 STR-G6652 STR-G6653 2.18 0.92 110/120 Input 2.62 200/220 Input 3.95 2.80 1.95
Part Number
Output Power
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
TYPICAL QUASI-RESONANT FLYBACK CONVERSION USING STR-G6651
WARNING: lethal potentials present. text.
OUTPUT
DRIVE REG. UVLO OVER-VOLT. PROTECT FAULT LATCH
VOLTAGE SENSE
INPUT
FULL-BRIDGE RECTIFIER
REF.
1.35
OUTPUT
1.45
0.73
Dwg. EK-003-4
WARNING These devices designed operated lethal voltages energy levels. Circuit
designs that embody these components must conform with applicable safety requirements. Precautions must taken prevent accidental contact with power-line potentials. connect grounded test equipment. isolation transformer recommended during circuit development breadboarding.
Recommended mounting hardware torque: 4.34 5.79 0.588 0.784 Nm). Recommended silicone grease: Corning SC102, Toshiba YG6260, Shin-Etsu G746., equivalent
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
Dimensions Inches
(for reference only)
0.394
0.008
0.126
0.008
0.110
0.008
0.157 0.008 0.311
0.008
0.665
0.012
0.067
0.004
0.102
0.004
0.343
0.020
0.161 0.020 0.181
0.033
+0.008 -0.004
0.018
+0.008 -0.004
0.200
±0.024
TIPS Dwg. MK-003-5
0.165 0.008
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
Dimensions Millimeters
(controlling dimensions)
16.9
0.85
+0.2 -0.1
0.45
+0.2 -0.1
5.08
±0.6
TIPS Dwg. MK-003-5
products described here manufactured Japan Sanken Electric Co., Ltd. sale Allegro MicroSystems, Inc. Sanken Electric Co., Ltd. Allegro MicroSystems, Inc. reserve right make, from time time, such departures from detail specifications required permit improvements design their products. information included herein believed accurate reliable. However, Sanken Electric Co., Ltd. Allegro MicroSystems, Inc. assume responsibility use; infringements patents other rights third parties which result from use.
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
POWER CONVERSION/POWER MANAGEMENT SELECTION GUIDES
SWITCHING REGULATOR PMCMs Part Number* 3002M 3004M S5703 S5707 S5708 F6624 F6626 F6628 G6651 F6652 F6653 F6654 F6656 F6672 F6674 F6676 S6703 S6704 S6707 S6708 S6709 8033S 8050S 8090S 8120S 8150S Application switching regulator switching regulator switching regulator Dual switching regulator Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter Quasi-resonant flyback converter switching regulator switching regulator switching regulator switching regulator switching regulator 7.0-33 7.0-33 110/120 85-265 220/240V 85-265 220/240 100/120 100/120 100/120 85-265 85-265 85-265 85-265 85-265 85-265 85-265 85-265 110/120V 110/120 85-265 220/240 85-265 220/240 85-265 220/240 5.5-28 7.0-40 12-40V 15-40 18-40 Power Switch 0.92 0.58 0.35 3.95 1.95 1.15 0.71 4.49 2.81 bipolar bipolar bipolar bipolar bipolar bipolar bipolar MOSFET MOSFET MOSFET MOSFET MOSFET MOSFET MOSFET MOSFET MOSFET MOSFET MOSFET bipolar bipolar bipolar bipolar bipolar bipolar bipolar bipolar bipolar bipolar
Complete part number includes additional characters indicate operating temperature range and/or package style. Also includes linear regulator output 15.7 Without heat sink.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
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