STRS6704 [ALLEGRO]
OFF-LINE SWITCHING REGULATORS WITH BIPOLAR SWITCHING TRANSISTOR; OFF- LINE开关稳压器具有双极开关晶体管
| 型号： | STRS6704 |
| 厂家： | 
ALLEGRO MICROSYSTEMS |
| 描述： | OFF-LINE SWITCHING REGULATORS WITH BIPOLAR SWITCHING TRANSISTOR |
| 文件： | 总8页 (文件大小：159K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STR-S6703 AND
STR-S6704
OFF-LINE SWITCHING REGULATORS
– WITH BIPOLAR SWITCHING TRANSISTOR
The STR-S6703 and STR-S6704 are specifically designed to meet
the requirement for increased integration and reliability in off-line quasi-
resonant flyback converters. These devices incorporate the primary
control and proportional drive circuit with a third-generation high-voltage
1
2
COLLECTOR
COMMON
BASE
bipolar switching transistor.
FAULT
3
4
5
6
7
S
Crucial system parameters such as maximum ON time and OFF
time are fixed during manufacture. Local control circuit decoupling and
layout are optimized within each device.
FAULT
LATCH
DRIVE
OSC.
SINK
R
DRIVE
OVER-CURRENT
PROTECTION
Cycle-by-cycle current limiting, under-voltage lock-out with hyster-
esis, over-voltage protection, and thermal shutdown protect these
devices during all normal and overload conditions. Over-voltage
protection and thermal shutdown are latched after a short delay. A
versatile triple-level inhibit circuit includes the OFF time synchronization
required to establish quasi-resonant operation. The inhibit function has
also been expanded to initiate operation in stand-by mode in which the
power supply delivers a small fraction of the steady-state output power.
The dual requirements of dielectric isolation and low transient thermal
impedance and steady-state thermal resistance are satisfied in an over-
molded single-in-line power package.
+
REF.
FDBK
+
INHIBIT
8
9
UVLO
V
IN
Dwg. PK-001
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VIN ........................... 15 V
Proven in substantial volumes, these devices and their fixed-
frequency counterparts represent a significant advance in off-line SMPS
reliability growth and integration. Similar devices, with an output
voltage rating of 850 V and output power ratings to 220 W, are available
as the STR-S6707 thru STR-S6709.
Output Voltage, VCEX ....................... 500 V
VEBO ................................................ 7 V
Continuous Output Current,
IC .......................................... See Table
1 ms Single-Pulse Output Current,
FEATURES
ICM ........................................ See Table
I Quasi-Resonant Operation for Low EMI and High Efficiency
I Output Power to 140 W
Sink Current, IS................................. 1.5 A
Drive Current, ID .......................... -700 mA
Feedback Current, IFDBK ................. 20 mA
Inhibit Voltage, VINH ........................... 15 V
I Low-Power Output Standby Mode
I Pulse-by-Pulse Over-Current Protection
I Latched Over-Voltage and Thermal Protection
I Third-Generation Switching Transistor with Proportional Drive
I Maximum ON Time and OFF Time Set During Manufacture
I Internal Under-Voltage Lockout with Hysteresis
I Over-Molded SIP with Integral Isolated Heat Spreader
Over-Current Protection Voltage Range,
VOCP ............................................ 3.5 V
Insulation Voltage,VWM(RMS) ........... 2000 V
Package Power Diss., PD ........ See Graph
Output Junction Temperature, TJ .. +150°C
Internal Frame Temperature, TF ... +125°C
Always order by complete part number:
Operating Temperature Range,
Max. Cont.
Current, IC
Peak
Current, ICM
TA ............................... -20°C to +125°C
Part Number
Storage Temperature Range,
STR-S6703
STR-S6704
6 A
5 A
12 A
10 A
Tstg ............................. -40°C to +125°C
™
STR-S6703 AND STR-S6704
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
FUNCTIONAL BLOCK DIAGRAM
V
INHIBIT
IN
8
9
R
UVLO
REF.
TSD
OVER-VOLT.
PROTECT
FAULT
LATCH
PROPORTIONAL
DRIVE
DRIVE
SINK
S
Q
5
4
1 kΩ
0.7 Ω
OSC.
3
BASE
R
ton
1
COLLECTOR
COMMON
+
+
0.75 V
2
FDBK
7
1.4 V
-1 V
3300 pF
R
toff
+
+
OVER-CURRENT
PROTECTION
6
5.1 V
Dwg. FK-001
ALLOWABLE PACKAGE POWER DISSIPATION
MAXIMUM SAFE OPERATING AREA
30
10
60
MOUNTING SURFACE
TEMPERATURE
STR-S6703 (54 W)
STR-S6704 (50 W)
STR-S6703 (12 A)
STR-S6704 (10 A)
RECOMMENDED MAX.
FRAME TEMP. = +100°C
40
5.0
3.0
L = 6 mH
I
B1 = 2.5 A
LIMITED BY FRAME
TEMP. = +125°C MAX.
I
B2 = 0.8 A
on = 100 µs
dc < 1%
t
20
1.0
0.5
FREE AIR
3.2 W
20
0
0.3
0
100
200
300
400
500
600
700
140
60
100
TEMPERATURE in °C
COLLECTOR-EMITTER VOLTAGE in VOLTS
Dwg. GK-003-3
Dwg. GK-002-3
™
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1994 Allegro MicroSystems, Inc.
STR-S6703 AND STR-S6704
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
ELECTRICAL CHARACTERISTICS at TA = +25°C, VIN = 8.5 V, voltage measurements are refer-
enced to Common (pin 2) (unless otherwise noted).
Limits
Characteristic
Symbol
VINT
Test Conditions
Min. Typ. Max. Units
On-State Voltage
Turn-on, increasing VIN
Turn-off, decreasing VIN
7.6
4.6
9.2
–
8.0
4.9
–
8.4
5.2
10.7
100
400
TBD
1.5
TBD
46
V
V
Under-Voltage Lockout
Over-Voltage Threshold
Output Leakage Current
Output Saturation Voltage
VINQ
VOVP(th)
ICEX
V
VCE = 500 V, VBE = -1.5 V
–
µA
mV
mV
V
VCE(sat)
STR-S6703, IC = 2 A, IB = 400 mA
STR-S6704, IC = 2 A, IB = 400 mA
STR-S6703, IC = 2 A, IB = 400 mA
STR-S6704, IC = 2 A, IB = 400 mA
STR-S6703, VCE = 4 V, IC = 1 A
STR-S6704, VCE = 4 V, IC = 1 A
–
–
–
–
VBE(sat)
–
–
–
–
V
DC Current Gain
hFE
23
20
33
45
–
–
–
50
–
Maximum ON Time
ton
–
41
µs
µs
V
Minimum OFF Time
toff
–
55
Over-Current Threshold
Feedback Threshold Volt.
Inhibit Threshold Voltage
VOCP(th)
VFDBK(th)
VINH(th)
-0.9 -1.0 -1.1
650
0.65 0.75 0.85
–
–
mV
V
Oscillation stops
Oscillation synchronized
Oscillation stops (fault latch set)
VIN reduced from 10.7 V to 4 V
IIN ≤ 100 µA, VIN reduced from 10.7 V
Operating
–
3.2
–
1.4
5.1
–
2.0
5.6
500
–
V
V
Latch Holding Current
Latch Reset Voltage
Supply Current
IINH
VQ
µA
V
2.5
15
3.1
–
IIN(ON)
IIN(OFF)
VWM(RMS)
28
200
–
mA
µA
V
–
–
Insulation RMS Voltage
All terminals simultaneous reference
metal plate against backside
2000
–
Thermal Shutdown
Thermal Resistance
TJ
125 150
2.0
–
–
°C
RθJM
Output junction to mounting surface
–
°C/W
NOTES: Negative current is defined as coming out of (sourcing) the specified device terminal.
Typical Data is for design information only.
www.allegromicro.com
STR-S6703 AND STR-S6704
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
TYPICAL CHARACTERISTICS
100
50
30
STR-S6703
V
= 4 V
CE
10
5.0
3.0
1.0
0.01
0.1
1.0
10
100
0.03
0.3
3.0
30
COLLECTOR CURRENT in AMPERES
Dwg. GK-001-3
™
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
STR-S6703 AND STR-S6704
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
TYPICAL QUASI-RESONANT FLYBACK CONVERTER
WARNING: lethal potentials are present. See text.
+
+ OUTPUT
+
8
9
R
+
+
S
Q
5
4
VOLTAGE
SENSE
+
3
1
2
– OUTPUT
+
+
7
+
+
6
#
Dwg. EK-004A
APPLICATIONS INFORMATION
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. Precau-
tions must be taken to prevent accidental contact 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 metal-oxide-filled, alkyl-degenerated oil base, silicone grease:
Dow Corning 340, or equivalent
www.allegromicro.com
STR-S6703 AND STR-S6704
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
Dimensions in Inches
(for reference only)
0.953 0.008
0.610
T
REF.
M
0.130
0.008
0.008
0.216
0.008
ø
0.118
0.130
0.004
0.276
0.016
0.216
9
1
0.016
0.100
0.004
0.026
0.033
+0.008
–0.004
+0.008
–0.004
0.177
0.028
PACKAGE
CENTER
LEAD
CENTER
Dwg. MK-003-9 in
NOTE: Exact body and lead configuration at vendor’s option within limits shown.
™
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
STR-S6703 AND STR-S6704
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
Dimensions in Millimeters
(controlling dimensions)
24.2 0.2
15.5 0.2
3.0
T
REF
M
3.3
5.5
0.2
0.2 ø
3.3
0.1
7.0
0.4
5.5
9
1
0.4
2.54
0.1
0.85
+0.2
–0.1
0.65
+0.2
–0.1
4.5
0.7
PACKAGE
CENTER
LEAD
CENTER
Dwg. MK-003-9 mm
NOTE: Exact body and lead configuration at vendor’s option within limits shown.
www.allegromicro.com
STR-S6703 AND STR-S6704
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
SWITCHING REGULATOR PMCMs
Part
Number*
Application
VI
Max PO
Power Switch
3002M
5 V switching regulator and a
9
7.0-33 V
–
–
500 mA
bipolar
V
switching
3004M
5 V switching regulator and
Dual 9 V switching regulator
7.0-33 V
–
–
–
500 mA
2 x 400 mA
bipolar
bipolar
S5703
S5707
Quasi-resonant flyback converter
Quasi-resonant flyback converter
110/120 V
140 W
500 V
850 V
6 A
6 A
bipolar
bipolar
85-265 V
220/240V
90 W
140 W
S5708
Quasi-resonant flyback converter
85-265 V
220/240 V
120 W
180 W
850 V
7.5 A
bipolar
S6703
S6704
S6707
Quasi-resonant flyback converter
Quasi-resonant flyback converter
Quasi-resonant flyback converter
110/120V
110/120 V
140 W
100 W
500 V
500 V
850 V
6 A
5 A
6 A
bipolar
bipolar
bipolar
85-265 V
220/240 V
90 W
140 W
S6708
S6709
Quasi-resonant flyback converter
Quasi-resonant flyback converter
85-265 V
220/240 V
120 W
180 W
850 V
850 V
7.5 A
10 A
bipolar
bipolar
85-265 V
220/240 V
160 W
220 W
8033S
8050S
8090S
8120S
8150S
3.3 V switching regulator
5.0 V switching regulator
9.0 V switching regulator
12 V switching regulator
15 V switching regulator
5.5-28 V
7.0-40 V
12-40V
–
–
–
–
–
–
–
–
–
–
3 A
3 A
3 A
3 A
3 A
bipolar
bipolar
bipolar
bipolar
bipolar
15-40 V
18-40 V
* Complete part number includes additional characters to indicate operating temperature range and/or package style.
† Also includes linear regulator output for 15.7 V at 1.0 A.
‡ Without heat sink.
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 user is cautioned to verify that the information in this publication is
current before placing any order.
These products are not authorized for use as critical components in life-support 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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