Datasheet Str-g6653.pdf 4e295d
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Data Sheet
STR-G6651
OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR 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. FDBK
OSC.
LATCH
2
3
4
5
SOURCE
GROUND
SUPPLY
OVERCURRENT &
O
1 DRAIN
VIN
UVLO OVP TSD
Dwg. PK-011
ABSOLUTE MAXIMUM RATINGS at TA = +25°C Control Supply Voltage, VIN . . . . . . . 35 V Drain-Source Voltage, VDS . . . . . . . . 650 V Drain Current, ID continuous . . . . . . . . . . . . . . . . . . 2.7 A single-pulse, tw ≤ 1 ms . . . . . . . . 7.2 A Avalanche Energy, EAS single-pulse . . . . . . . . . . . . . . . 158 mJ Over-Current Protection Voltage Range, VO . . . . . . . . . . . . . . . -0.3 V to +6 V Insulation RMS Voltage, VWM(RMS) . . . . . . . . . . . . . . . . . . 2000 V Package Power Dissipation, PD control (VIN x IIN(ON)) . . . . . . . . . 0.8 W total . . . . . . . . . . . . . . . . . . . See Graph FET Channel Temperature, TJ . . . +150°C Internal Frame Temperature, TF . . +125°C Operating Temperature Range, TA . . . . . . . . . . . . . . . -20°C to +125°C Storage Temperature Range, TS . . . . . . . . . . . . . . . -40°C to +125°C
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 accommodate printed wiring board layout or mechanical constraints. Proven in substantial volumes, the STR-G6651 is a robust low-risk solution for off-line power supplies particularly where management of EMI at the source is a significant element of the system design.
FEATURES ■ Quasi-Resonant Operation ■ Output Power to 66 W ■ Low-Loss, Pulse-Ratio-Control Standby Mode ■ Temperature-Compensated Pulse-by-Pulse Over-Current Protection ■ Latched Over-Voltage and Thermal Protection ■ Under-Voltage Lockout with Hysteresis ■ Active Low- Filter for Enhanced Light-Load Stability ■ Switched Attenuation of Leading-Edge Current-Sensing Signal ■ Regulated Soft Gate Drive ■ Adjustable Switching Speed for EMI Control ■ Overmolded Five-Pin Package
Always order by complete part number: STR-G6651 .
™
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR FUNCTIONAL BLOCK DIAGRAM V IN 4 DRIVE REG. R
UVLO OVER-VOLT. PROTECT
FAULT LATCH S
1
DRAIN
2
SOURCE
5
& OVER-CURRENT PROTECTION
3
GROUND
Q
REF.
TSD
1.35 mA
OSC
– +
1.45 V
– +
0.73 V
Dwg. FK-002-5
MAXIMUM SAFE OPERATING AREA
ALLOWABLE PACKAGE POWER DISSIPATION
27 W
50
MOUNTING SURFACE TEMPERATURE
15
LIMITED BY FRAME TEMP. = +125°C MAX. 10
FREE AIR
tw
LIMITED BY rDS(on)
5
tw
1.5
=0 .1 ms SIN =1 GL ms EP SIN UL SE GL EP UL SE LIMITED BY VDS max
20
DRAIN CURRENT in AMPERES
ALLOWABLE PACKAGE POWER DISSIPATION in WATTS
30
0.5 NO HEAT SINK NATURAL COOLING TA = +25°C 0.15
CONTROLLER 1.5 W 0.8 W 0
0.05 20
60 100 TEMPERATURE in °C
140
3.0
10
30
100
300
1000
DRAIN-SOURCE VOLTAGE in VOLTS Dwg. GK-003-4
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 1999, 2000 Allegro MicroSystems, Inc.
Dwg. GK-004-5
™
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
ELECTRICAL CHARACTERISTICS at TA = +25°C, VIN = 18 V, VDD = 10 V, VS = 0, voltage measurements are referenced to ground terminal (unless otherwise specified). Limits Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
On-State Voltage
VINT
Turn-on, increasing VIN
14.4
16
17.6
V
Under-Voltage Lockout
VINQ
Turn-off, decreasing VIN
9.0
10
11
V
Over-Voltage Threshold
VOVP(th)
Turn-off, increasing VIN
20.5
22.5
24.5
V
Drain-Source Breakdown Voltage
V(BR)DSS
ID = 300 µA
650
–
–
V
IDSS
VDS = 650 V
–
–
300
µA
VS = 10 V, ID = 0.9 A, TJ = +25°C
–
–
3.95
Ω
Drain Leakage Current On-State Resistance
rDS(on)
Maximum OFF Time
toff
Drain waveform high
45
–
55
µs
tw(th)
Drain waveform high1
–
–
1.0
µs
toff
Drain waveform high1
–
–
1.5
µs
Drain waveform low to high1
0.68
0.73
0.78
V
Oscillation synchronized2
1.3
1.45
1.6
V
1.2
1.35
1.5
mA
Minimum Pulse Duration for Input of Quasi-Resonant Signals Minimum OFF Time Threshold Voltage
VFDBK
Over-Current Protection/ Sink Current
IO/FB
VO/FB = 1.0 V
Latch Holding Current
IIN(OVP)
VIN reduced from 24.5 V to 8.5 V
–
–
400
mA
Latch Release Voltage
VIN
IIN ≤ 20 µA, VIN reduced from 24.5 V
6.6
–
8.4
V
VDD = 200 V, ID = 0.9 A
–
–
250
ns
Switching Time
tf
Supply Current
IIN(ON)
Operating3
–
–
30
mA
IIN(OFF)
Increasing VIN prior to oscillation
–
–
100
µA
VWM(RMS)
All terminals simultaneous reference metal plate against backside
2000
–
–
V
140
–
–
°C
–
–
1.63
°C/W
Insulation RMS Voltage Thermal Shutdown
TJ
Thermal Resistance
RθJM
Output junction-to-mounting frame
Notes: Typical Data is for design information only. 1. is square wave, VIM = 2.2 V, th = 1 µs, tl = 35 µs 2. For quasi-resonant operation, the input signal must be longer than tw(th) and greater than VFDBK 3. is square wave, VIM = 2.2 V, th = 4 µs, tl = 1 µs
www.allegromicro.com
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR ALLOWABLE AVALANCHE ENERGY
ALLOWABLE AVALANCHE ENERGY in mJ
200
150 SINGLE PULSE DRAIN CURRENT = 1.8 A
100
50
0 0
20 40 80 120 60 100 STARTING CHANNEL TEMPERATURE in °C
140
160
Dwg. GK-009-2
STR-G6600 Series
Part Number
Drain-Source Drain-Source Output Breakdown Voltage ON Resistance at ID = 300 µA at ID = 0.9 A V(BR)DS, Minimum rDS(on), Maximum
Output Power
For 100/120 V AC Input STR-G6622
450 V
2.18 Ω
44 W – 60 W
STR-G6624
450 V
0.92 Ω
98 W – 130 W
For 110/120 V AC Input STR-G6632
500 V
2.62 Ω
36 W – 50 W
For 200/220 V AC Input STR-G6651
650 V
3.95 Ω
66 W
STR-G6652
650 V
2.80 Ω
86 W
STR-G6653
650 V
1.95 Ω
120 W
115 Northeast Cutoff, Box 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 are present. See text.
+ OUTPUT
4 DRIVE REG.
OVER-VOLT. PROTECT
FAULT LATCH
AC INPUT
S
FULL-BRIDGE RECTIFIER
1
R
UVLO
2
VOLTAGE SENSE
Q
REF.
+
TSD OSC
– OUTPUT
1.35 mA
+
– +
1.45 V
5
– +
0.73 V
3
★ Dwg. EK-003-4A
WARNING — These devices are designed to be operated at lethal voltages and energy levels. Circuit designs that embody these components must conform with applicable safety requirements. Precautions must be taken to prevent accidental with power-line potentials. Do not connect grounded test equipment. The use of an isolation transformer is recommended during circuit development and breadboarding.
Recommended mounting hardware torque: 4.34 - 5.79 lbf•ft (6 – 8 kg•cm or 0.588 – 0.784 Nm). Recommended silicone grease: Dow Corning SC102, Toshiba YG6260, Shin-Etsu G746., or equivalent
www.allegromicro.com
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
STR-G6651 (LF1129) 0.394
0.126 ø
± 0.008
0.110
± 0.008
± 0.008
0.157 ± 0.008 0.311 ± 0.008
0.665
Dimensions in Inches
± 0.012
(for reference only)
0.067
0.102
± 0.004
± 0.004
0.343 ± 0.020 1
0.161 ± 0.020 0.181 REF
5
0.033
0.018
+0.008 –0.004
+0.008 –0.004
0.200 ±0.024
0.165 ± 0.008
AT TIPS Dwg. MK-003-5 in
10
3.2 ø
± 0.2
2.8
± 0.2
4.0 ± 0.2
± 0.2
7.9 ± 0.2
16.9
Dimensions in Millimeters
± 0.3
(controlling dimensions)
1.7
2.6
± 0.1
± 0.1
8.7 ± 0.5 1
4.1 ± 0.5 4.6 REF
5
0.85
0.45
+0.2 –0.1
+0.2 –0.1
4.2 ± 0.2
5.08 ±0.6 AT TIPS Dwg. MK-003-5 mm
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
™
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
STR-G6651-LF (LF1128) 0.394
0.126 ø
± 0.008
0.110
± 0.008
± 0.008
0.157 ± 0.008 0.311 ± 0.008
0.665 ± 0.012
Dimensions in Inches (for reference only)
0.067
0.102
± 0.004
± 0.004
0.217 ± 0.020 0.531 +0.008 –0.004
0.224 REF
REF
0.033 1
0.291 REF
5
0.018 +0.008 –0.004
0.165 ± 0.008
0.157
0.079 ±0.020
±0.020 Dwg. MK-003-51 in
10.0
3.2 ø
± 0.2
2.8
± 0.2
4.0 ± 0.2
± 0.2
7.9 ± 0.2
16.9 ± 0.3
Dimensions in Millimeters (controlling dimensions)
1.7
2.6
± 0.1
± 0.1
5.5 ± 0.5 13.5 REF
0.85 +0.2 –0.1
1
5.7 REF 0.45 +0.2 –0.1
4.2 ± 0.2
7.4 REF
5
4.0
2.0 ±0.5
±0.5 Dwg. MK-003-51 mm
www.allegromicro.com
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
The products described here are manufactured in Japan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc. Sanken Electric Co., Ltd. and Allegro MicroSystems, Inc. reserve the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of their products. Therefore, the is cautioned to that the information in this publication is current before placing any order. These products are not authorized for use as critical components in life- appliances, devices, or systems without express written approval. The information included herein is believed to be accurate and reliable. However, Sanken Electric Co., Ltd. and Allegro MicroSystems, Inc. assume no responsibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use.
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
™
Data Sheet
STR-G6651
OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR 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. FDBK
OSC.
LATCH
2
3
4
5
SOURCE
GROUND
SUPPLY
OVERCURRENT &
O
1 DRAIN
VIN
UVLO OVP TSD
Dwg. PK-011
ABSOLUTE MAXIMUM RATINGS at TA = +25°C Control Supply Voltage, VIN . . . . . . . 35 V Drain-Source Voltage, VDS . . . . . . . . 650 V Drain Current, ID continuous . . . . . . . . . . . . . . . . . . 2.7 A single-pulse, tw ≤ 1 ms . . . . . . . . 7.2 A Avalanche Energy, EAS single-pulse . . . . . . . . . . . . . . . 158 mJ Over-Current Protection Voltage Range, VO . . . . . . . . . . . . . . . -0.3 V to +6 V Insulation RMS Voltage, VWM(RMS) . . . . . . . . . . . . . . . . . . 2000 V Package Power Dissipation, PD control (VIN x IIN(ON)) . . . . . . . . . 0.8 W total . . . . . . . . . . . . . . . . . . . See Graph FET Channel Temperature, TJ . . . +150°C Internal Frame Temperature, TF . . +125°C Operating Temperature Range, TA . . . . . . . . . . . . . . . -20°C to +125°C Storage Temperature Range, TS . . . . . . . . . . . . . . . -40°C to +125°C
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 accommodate printed wiring board layout or mechanical constraints. Proven in substantial volumes, the STR-G6651 is a robust low-risk solution for off-line power supplies particularly where management of EMI at the source is a significant element of the system design.
FEATURES ■ Quasi-Resonant Operation ■ Output Power to 66 W ■ Low-Loss, Pulse-Ratio-Control Standby Mode ■ Temperature-Compensated Pulse-by-Pulse Over-Current Protection ■ Latched Over-Voltage and Thermal Protection ■ Under-Voltage Lockout with Hysteresis ■ Active Low- Filter for Enhanced Light-Load Stability ■ Switched Attenuation of Leading-Edge Current-Sensing Signal ■ Regulated Soft Gate Drive ■ Adjustable Switching Speed for EMI Control ■ Overmolded Five-Pin Package
Always order by complete part number: STR-G6651 .
™
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR FUNCTIONAL BLOCK DIAGRAM V IN 4 DRIVE REG. R
UVLO OVER-VOLT. PROTECT
FAULT LATCH S
1
DRAIN
2
SOURCE
5
& OVER-CURRENT PROTECTION
3
GROUND
Q
REF.
TSD
1.35 mA
OSC
– +
1.45 V
– +
0.73 V
Dwg. FK-002-5
MAXIMUM SAFE OPERATING AREA
ALLOWABLE PACKAGE POWER DISSIPATION
27 W
50
MOUNTING SURFACE TEMPERATURE
15
LIMITED BY FRAME TEMP. = +125°C MAX. 10
FREE AIR
tw
LIMITED BY rDS(on)
5
tw
1.5
=0 .1 ms SIN =1 GL ms EP SIN UL SE GL EP UL SE LIMITED BY VDS max
20
DRAIN CURRENT in AMPERES
ALLOWABLE PACKAGE POWER DISSIPATION in WATTS
30
0.5 NO HEAT SINK NATURAL COOLING TA = +25°C 0.15
CONTROLLER 1.5 W 0.8 W 0
0.05 20
60 100 TEMPERATURE in °C
140
3.0
10
30
100
300
1000
DRAIN-SOURCE VOLTAGE in VOLTS Dwg. GK-003-4
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 1999, 2000 Allegro MicroSystems, Inc.
Dwg. GK-004-5
™
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
ELECTRICAL CHARACTERISTICS at TA = +25°C, VIN = 18 V, VDD = 10 V, VS = 0, voltage measurements are referenced to ground terminal (unless otherwise specified). Limits Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
On-State Voltage
VINT
Turn-on, increasing VIN
14.4
16
17.6
V
Under-Voltage Lockout
VINQ
Turn-off, decreasing VIN
9.0
10
11
V
Over-Voltage Threshold
VOVP(th)
Turn-off, increasing VIN
20.5
22.5
24.5
V
Drain-Source Breakdown Voltage
V(BR)DSS
ID = 300 µA
650
–
–
V
IDSS
VDS = 650 V
–
–
300
µA
VS = 10 V, ID = 0.9 A, TJ = +25°C
–
–
3.95
Ω
Drain Leakage Current On-State Resistance
rDS(on)
Maximum OFF Time
toff
Drain waveform high
45
–
55
µs
tw(th)
Drain waveform high1
–
–
1.0
µs
toff
Drain waveform high1
–
–
1.5
µs
Drain waveform low to high1
0.68
0.73
0.78
V
Oscillation synchronized2
1.3
1.45
1.6
V
1.2
1.35
1.5
mA
Minimum Pulse Duration for Input of Quasi-Resonant Signals Minimum OFF Time Threshold Voltage
VFDBK
Over-Current Protection/ Sink Current
IO/FB
VO/FB = 1.0 V
Latch Holding Current
IIN(OVP)
VIN reduced from 24.5 V to 8.5 V
–
–
400
mA
Latch Release Voltage
VIN
IIN ≤ 20 µA, VIN reduced from 24.5 V
6.6
–
8.4
V
VDD = 200 V, ID = 0.9 A
–
–
250
ns
Switching Time
tf
Supply Current
IIN(ON)
Operating3
–
–
30
mA
IIN(OFF)
Increasing VIN prior to oscillation
–
–
100
µA
VWM(RMS)
All terminals simultaneous reference metal plate against backside
2000
–
–
V
140
–
–
°C
–
–
1.63
°C/W
Insulation RMS Voltage Thermal Shutdown
TJ
Thermal Resistance
RθJM
Output junction-to-mounting frame
Notes: Typical Data is for design information only. 1. is square wave, VIM = 2.2 V, th = 1 µs, tl = 35 µs 2. For quasi-resonant operation, the input signal must be longer than tw(th) and greater than VFDBK 3. is square wave, VIM = 2.2 V, th = 4 µs, tl = 1 µs
www.allegromicro.com
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR ALLOWABLE AVALANCHE ENERGY
ALLOWABLE AVALANCHE ENERGY in mJ
200
150 SINGLE PULSE DRAIN CURRENT = 1.8 A
100
50
0 0
20 40 80 120 60 100 STARTING CHANNEL TEMPERATURE in °C
140
160
Dwg. GK-009-2
STR-G6600 Series
Part Number
Drain-Source Drain-Source Output Breakdown Voltage ON Resistance at ID = 300 µA at ID = 0.9 A V(BR)DS, Minimum rDS(on), Maximum
Output Power
For 100/120 V AC Input STR-G6622
450 V
2.18 Ω
44 W – 60 W
STR-G6624
450 V
0.92 Ω
98 W – 130 W
For 110/120 V AC Input STR-G6632
500 V
2.62 Ω
36 W – 50 W
For 200/220 V AC Input STR-G6651
650 V
3.95 Ω
66 W
STR-G6652
650 V
2.80 Ω
86 W
STR-G6653
650 V
1.95 Ω
120 W
115 Northeast Cutoff, Box 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 are present. See text.
+ OUTPUT
4 DRIVE REG.
OVER-VOLT. PROTECT
FAULT LATCH
AC INPUT
S
FULL-BRIDGE RECTIFIER
1
R
UVLO
2
VOLTAGE SENSE
Q
REF.
+
TSD OSC
– OUTPUT
1.35 mA
+
– +
1.45 V
5
– +
0.73 V
3
★ Dwg. EK-003-4A
WARNING — These devices are designed to be operated at lethal voltages and energy levels. Circuit designs that embody these components must conform with applicable safety requirements. Precautions must be taken to prevent accidental with power-line potentials. Do not connect grounded test equipment. The use of an isolation transformer is recommended during circuit development and breadboarding.
Recommended mounting hardware torque: 4.34 - 5.79 lbf•ft (6 – 8 kg•cm or 0.588 – 0.784 Nm). Recommended silicone grease: Dow Corning SC102, Toshiba YG6260, Shin-Etsu G746., or equivalent
www.allegromicro.com
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
STR-G6651 (LF1129) 0.394
0.126 ø
± 0.008
0.110
± 0.008
± 0.008
0.157 ± 0.008 0.311 ± 0.008
0.665
Dimensions in Inches
± 0.012
(for reference only)
0.067
0.102
± 0.004
± 0.004
0.343 ± 0.020 1
0.161 ± 0.020 0.181 REF
5
0.033
0.018
+0.008 –0.004
+0.008 –0.004
0.200 ±0.024
0.165 ± 0.008
AT TIPS Dwg. MK-003-5 in
10
3.2 ø
± 0.2
2.8
± 0.2
4.0 ± 0.2
± 0.2
7.9 ± 0.2
16.9
Dimensions in Millimeters
± 0.3
(controlling dimensions)
1.7
2.6
± 0.1
± 0.1
8.7 ± 0.5 1
4.1 ± 0.5 4.6 REF
5
0.85
0.45
+0.2 –0.1
+0.2 –0.1
4.2 ± 0.2
5.08 ±0.6 AT TIPS Dwg. MK-003-5 mm
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
™
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
STR-G6651-LF (LF1128) 0.394
0.126 ø
± 0.008
0.110
± 0.008
± 0.008
0.157 ± 0.008 0.311 ± 0.008
0.665 ± 0.012
Dimensions in Inches (for reference only)
0.067
0.102
± 0.004
± 0.004
0.217 ± 0.020 0.531 +0.008 –0.004
0.224 REF
REF
0.033 1
0.291 REF
5
0.018 +0.008 –0.004
0.165 ± 0.008
0.157
0.079 ±0.020
±0.020 Dwg. MK-003-51 in
10.0
3.2 ø
± 0.2
2.8
± 0.2
4.0 ± 0.2
± 0.2
7.9 ± 0.2
16.9 ± 0.3
Dimensions in Millimeters (controlling dimensions)
1.7
2.6
± 0.1
± 0.1
5.5 ± 0.5 13.5 REF
0.85 +0.2 –0.1
1
5.7 REF 0.45 +0.2 –0.1
4.2 ± 0.2
7.4 REF
5
4.0
2.0 ±0.5
±0.5 Dwg. MK-003-51 mm
www.allegromicro.com
STR-G6651 OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
The products described here are manufactured in Japan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc. Sanken Electric Co., Ltd. and Allegro MicroSystems, Inc. reserve the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of their products. Therefore, the is cautioned to that the information in this publication is current before placing any order. These products are not authorized for use as critical components in life- appliances, devices, or systems without express written approval. The information included herein is believed to be accurate and reliable. However, Sanken Electric Co., Ltd. and Allegro MicroSystems, Inc. assume no responsibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use.
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
™
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