ALLEGRO STR

OFF-LINE SWITCHING REGULATORS
– WITH POWER MOSFET OUTPUT
DRAIN
1
SOURCE
2
GATE
3
POWER
GROUND
4
SOFT
START
5
OVER-CURRENT
PROTECTION
6
These devices are specifically designed to meet the requirements
for increased integration and reliability in off-line flyback (STR-S6411)
and forward (STR-S6411F) converters operating in a fixed-frequency
PWM mode. Each device incorporates the primary control and drive
circuits with an avalanche-rated high-voltage power MOSFET. Crucial
system parameters such as switching frequency and maximum duty
cycle are fixed during manufacture. The STR-S6411 and STR-S6411F
differ only in their maximum duty cycle. Control circuit decoupling and
layout are optimized within each device.
OSC.
LATCH
T
C
PWM
+
+
V IN
U
Y
D
L
O
7
SIGNAL
GROUND
8
FDBK
9
UVLO
Cycle-by-cycle and average-current limiting, soft start, undervoltage lockout with hysteresis, and thermal shutdown protect the
device during all normal and overload conditions. The performance and
reliability of these devices, and their variable-frequency counterparts,
has been proven in substantial volume production.
REF.
R
P
N
O
The requirements of high dielectric isolation and low transient
thermal impedance and steady-state thermal resistance are satisfied in
an over-molded, 9-pin single in-line power package.
D
E
Dwg. PK-003
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VIN ............................ 35 V
Drain-Source Voltage, VDS ............... 800 V
Drain Current, ID
continuous ..................................... ±5 A
single pulse, tw ≤1 ms .................. ±20 A
Avalanche Energy, EA
single pulse ............................... 400 mJ
Gate-Source Voltage, VGS ................ ±20 V
Gate-Drive Current Range,
IG ................................. -0.7 A to +1.5 A
Over-Current Protection Voltage Range,
VOCP ............................. -0.3 V to +4.0 V
Insulation RMS Voltage,
VWM(RMS) ..................................... 2000 V
Package Power Dissipation,
PD ........................................ 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,
Tstg ............................. -30°C to +125°C
U
N
N
O
I
D
C
S
—
F
R
O
N
E
FEATURES
I
T
E
C
R
E
■ PWM Flyback Conversion or Forward Conversion
■ Output Power to 250 W
F
E
■ Pulse-by-Pulse Current Limiting
■ Fixed-Frequency 100 kHz PWM
R
■ Avalanche-Rated Power MOSFET Switch
■ Soft Start
■ Internal Under-Voltage Lockout and Thermal Shutdown
■ Low External Component Count
■ Over-Molded SIP with Isolated Heat Spreader
Always order by complete part number:
STR-S6411 or STR-S6411F .
™
Data Sheet
28101.1
STR-S6411 AND
STR-S6411F
STR-S6411 AND STR-S6411F
OFF-LINE
SWITCHING REGULATORS
FUNCTIONAL BLOCK DIAGRAM
V IN
FDBK
GATE
7
9
3
UVLO
REF.
1
DRAIN
2
SOURCE
6
OVER-CURRENT
PROTECTION
Rton
PWM
R
LATCH
+
Q
S
Rtoff
OSC.
+
0.2 V
5
8
4
SOFT
START
SIGNAL
GROUND
POWER
GROUND
ALLOWABLE PACKAGE POWER DISSIPATION
MOUNTING SURFACE
TEMPERATURE
100
t
w =
0.1
ms
SIN
GL
EP
UL
SE
30
RECOMMENDED MAX.
FRAME TEMP. = +100°C
40
LIMITED BY FRAME
TEMP. = +125°C MAX.
20
DRAIN CURRENT in AMPERES
ALLOWABLE PACKAGE POWER DISSIPATION in WATTS
MAXIMUM SAFE OPERATING AREA
LIMITED
BY r DS(on)
10
tw
=1
t
ms
w =
SIN
10
GL
ms
EP
SIN
UL
GL
SE
EP
UL
SE
3.0
LIMITED BY V DS max
62 W
60
Dwg. FK-003
1.0
NO HEAT SINK
NATURAL COOLING
TA = +25°C
0.3
FREE AIR
3.2 W
0.1
0
20
60
100
TEMPERATURE in °C
3.0
140
10
30
100
300
1000
DRAIN-TO-SOURCE VOLTAGE in VOLTS
Dwg. GK-004-1
Dwg. GK-003
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1994 Allegro MicroSystems, Inc.
™
STR-S6411 AND STR-S6411F
OFF-LINE
SWITCHING REGULATORS
ALLOWABLE AVALANCHE ENERGY in mJ
600
ALLOWABLE AVALANCHE ENERGY
500
SINGLE PULSE
DRAIN CURRENT = 5 A
SUPPLY VOLTAGE = 50 V
400
300
200
100
0
0
60
100
20
40
80
120
STARTING CHANNEL TEMPERATURE in °C
160
140
Dwg. GK-009-1
ELECTRICAL CHARACTERISTICS at TA = +25°C, VIN = 17 V, voltage measurements are referenced to
Signal Ground (pin 8) (unless otherwise noted).
Limits
Characteristic
Symbol
Test Conditions
Min. Typ. Max.
Units
On-State Voltage
V INT
Turn-on, increasing VIN
14.4
16
17.6
V
Under-Voltage Lockout
V INQ
Turn-off, decreasing VIN
8.4
9.4
10.4
V
FET Leakage Current
IDSS
VDS = 800 V
–
–
1.2
mA
rDS(on)
VGS = 10 V, ID = 3 A
–
1.8
2.2
Ω
Forward Transconductance
gfs
VGS = 10 V, ID = 3 A
3.0
–
–
S
FET Input Capacitance
Ciss
VDS=10 V, VGS =0 V, f=1 MHz
–
1800
–
pF
Propagation Delay Time
tphl
Turn-on, 10% VGS to 10% VDS
–
60
–
ns
tplh
Turn-off, 90% VGS to 90% VDS
–
140
–
ns
93
100
107
kHz
STR-S6411
5.1
5.7
6.5
µs
STR-S6411F
3.8
4.5
5.2
µs
VOCP(th)
160
200
240
mV
OCP Current
IOCP
-250
-400
-550
µA
Feedback Current
IFDBK
–
-1.8
–
mA
Soft Start Threshold Voltage
V SS(th)
–
–
0.4
V
FET ON Resistance
Oscillator Frequency
fosc
Maximum ON Time
ton
Over-Current Threshold
Soft Start Current
ISS
VSS = 0 V
–
-100
–
µA
Power Ground Current
IPG
tw = 200 ns
–
-1.0
-1.5
A
IIN(ON)
Operating
–
23
–
mA
IIN(OFF)
Start up, VIN = 12 V
–
–
500
µA
2000
–
–
V
–
2.0
–
°C/W
Supply Current
Insulation RMS Voltage
VWM(RMS)
All terminals simultaneous reference
metal plate against backside
Thermal Resistance
RθJM
FET channel to mounting surface
NOTES: Negative current is defined as coming out of (sourcing) the specified device terminal.
Typical Data is for design information only.
STR-S6411 AND STR-S6411F
OFF-LINE
SWITCHING REGULATORS
TYPICAL CHARACTERISTICS
35
160
TA = +100°C
30
140
OPERATING SUPPLY CURRENT in mA
120
100
80
60
TA = -20°C
20
15
VINT
10
VINQ
5
0
40
-20
0
20
40
80
60
100
0
140
120
5
10
AMBIENT TEMPERATURE in °C
15
20
25
30
35
Dwg. GK-006
300
250
200
150
100
50
0
-20
40
INPUT VOLTAGE in VOLTS
Dwg. GK-005
OVER-CURRENT THRESHOLD VOLTAGE in mV
OSCILLATOR FREQUENCY in kHz
TA = +25°C
25
0
20
40
60
80
100
120
140
AMBIENT TEMPERATURE in °C
Dwg. GK-007
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
™
STR-S6411 AND STR-S6411F
OFF-LINE
SWITCHING REGULATORS
TYPICAL PWM FLYBACK CONVERSION USING STR-S6411
WARNING: lethal potentials are present. See text.
+ OUTPUT
NC
9
7
3
STR-S6411
+
VOLTAGE
SENSE
FULL-BRIDGE
RECTIFIER
AC INPUT
220 V/240 V
1
+
+
– OUTPUT
2
6
+
5
4
8
Dwg. EK-003-2
TYPICAL PWM FORWARD CONVERSION USING STR-S6411F
WARNING: lethal potentials are present. See text.
+ OUTPUT
NC
9
7
3
STR-S6411F
+
VOLTAGE
SENSE
FULL-BRIDGE
RECTIFIER
AC INPUT
220 V/240 V
1
+
+
– OUTPUT
2
+
5
8
6
4
Dwg. EK-003-3
STR-S6411 AND STR-S6411F
OFF-LINE
SWITCHING REGULATORS
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.
Precautions 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.
The power MOSFET outputs of these devices are similar to the International Rectifier type IRFPE40. These devices
feature an excellent combination of fast switching, ruggedized device design, low on-resistance, and cost effectiveness.
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
Dimensions in Inches
(for reference only)
0.953 ±0.008
T M REF.
0.130 ø
0.610
±0.008
0.216
±0.008
±0.008
0.709 ±0.008
1.49 ±0.012
0.118
0.130
±0.004
0.276
±0.016
0.216
1
0.016
0.033
9
0.100
0.026
±0.004
+0.008
–0.004
0.177
+0.008
–0.004
±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-S6411 AND STR-S6411F
OFF-LINE
SWITCHING REGULATORS
Dimensions in Millimeters
(controlling dimensions)
24.2 ±0.2
T
REF
M
3.3 ø
15.5 ±0.2
±0.2
5.5
±0.2
18.0 ±0.2
23.0 ±0.3
3.0
3.3
±0.1
7.0
±0.4
5.5
1
0.85
0.4
9
2.54
±0.1
+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.
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 design of their products.
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.
STR-S6411 AND STR-S6411F
OFF-LINE
SWITCHING REGULATORS
POWER CONVERSION/POWER MANAGEMENT
SELECTION GUIDES
SWITCHING REGULATOR PMCMs
Part
Number*
3002M
Application
5 V Switching Regulator and a
9 V Switching Regulator†
VI
7.0-33 V
Max PO
–
3004M
5 V Switching Regulator and
Dual 9 V Switching Regulator
7.0-33 V
–
–
–
500 mA
2 x 400 mA
Bipolar
Bipolar
S5703
Quasi-Resonant Flyback Converter
110/120 V
140 W
500 V
6A
Bipolar
S5707
Quasi-Resonant Flyback Converter
85-265 V
220/240V
90 W
140 W
850 V
6A
Bipolar
S5708
Quasi-Resonant Flyback Converter
85-265 V
220/240 V
120 W
180 W
850 V
7.5 A
Bipolar
F6624
Quasi-Resonant Flyback Converter
100/120 V
130 W
450 V
0.92 Ω
MOSFET
F6626
Quasi-Resonant Flyback Converter
100/120 V
190 W
450 V
0.58 Ω
MOSFET
F6628
Quasi-Resonant Flyback Converter
100/120 V
290 W
450 V
0.35 Ω
MOSFET
F6652
Quasi-Resonant Flyback Converter
85-265 V
86 W
650 V
2.8 Ω
MOSFET
F6653
Quasi-Resonant Flyback Converter
85-265 V
120 W
650 V
1.95 Ω
MOSFET
F6654
Quasi-Resonant Flyback Converter
85-265 V
190 W
650 V
1.15 Ω
MOSFET
F6656
Quasi-Resonant Flyback Converter
85-265 V
300 W
650 V
0.71 Ω
MOSFET
F6672
Quasi-Resonant Flyback Converter
200/220 V
50 W
900 V
7.7 Ω
MOSFET
F6674
Quasi-Resonant Flyback Converter
85-265 V
76 W
900 V
4.49 Ω
MOSFET
F6676
Quasi-Resonant Flyback Converter
85-265 V
115 W
900 V
2.81 Ω
MOSFET
S6703
Quasi-Resonant Flyback Converter
110/120V
140 W
500 V
6A
Bipolar
S6704
Quasi-Resonant Flyback Converter
110/120 V
100 W
500 V
5A
Bipolar
S6707
Quasi-Resonant Flyback converter
85-265 V
220/240 V
90 W
140 W
850 V
6A
Bipolar
S6708
Quasi-Resonant Flyback Converter
85-265 V
220/240 V
120 W
180 W
850 V
7.5 A
Bipolar
S6709
Quasi-Resonant Flyback Converter
85-265 V
220/240 V
160 W
220 W
850 V
10 A
Bipolar
8033S
3.3 V Switching Regulator
5.5-28 V
–
–
3A
Bipolar
8050S
5.0 V Switching Regulator
7.0-40 V
–
–
3A
Bipolar
8090S
9.0 V Switching Regulator
12-40V
–
–
3A
Bipolar
8120S
12 V Switching Regulator
15-40 V
–
–
3A
Bipolar
8150S
15 V Switching Regulator
18-40 V
–
–
3A
Bipolar
–
–
Power Switch
500 mA
Bipolar
400 mA
Bipolar
* 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.
POWER CONVERSION/POWER MANAGEMENT
SELECTION GUIDES (CONTINUED)
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
™