Page 1
DRAIN
SOURCE
COMMON
OVER-CURRENT
PROTECTION
V
Data Sheet
28102.10
STR-S6513
OFF-LINE SWITCHING REGULATOR
– WITH POWER MOSFET OUTPUT
The STR-S6513 is specifically designed to meet the requirement
for increased integration and reliability in off-line flyback converters
1
FAULT
OSC.
2
3
4
5
IN
+
LATCH
RS
FAULT
UVLO
operating in the quasi-resonant ringing choke mode. The device
incorporates the primary control and drive circuit with a discrete avalanche-rated power MOSFET.
Crucial system parameters such as maximum ON time and OFF
time are fixed during manufacture. Local control circuit decoupling and
layout are optimized within the device.
FDBK
FAULT-LATCH
TRIGGER &
SOFT START
6
7
8
9
REF.
Cycle-by-cycle current limiting, soft start, under-voltage lock-out
with hysteresis, over-voltage protection, and thermal shutdown protect
the device during all normal and overload conditions. Over-voltage
protection, thermal shutdown, or an external fault signal are latched.
The dual requirements of dielectric isolation and low transient thermal
impedance and steady-state thermal resistance are satisfied in an over-
Dwg. PK-002-2
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VIN........................... 35 V
Drain-Source Voltage, VDS.............. 400 V
molded single-in-line power package.
Proven in substantial volumes, this device and its fixed-frequency
counterparts represents a significant advance in off-line SMPS reliability
growth and integration. A similar off-line switching regulator, with an
output rating of 600 V at 6 A, is also available.
Continuous Drain Current, ID............. 10 A
1 ms Single-Pulse Drain Current,
IDM................................................. 40 A
Single-Pulse Avalanche Energy,
EA.............................................. 400 mJ
Soft-Start/Fault-Latch Trigger Voltage,
V
............................................. 10 V
SS/FL
Feedback Input Current, I
........ 20 mA
FDBK
Over-Current Protection Voltage,
V
............................................. 3.5 V
OCP
Insulation Voltage,V
DISCONTINUED PRODUCT
Package Power Diss., PD........ See Graph
WM(RMS)
........... 2000 V
FEATURES
■ Quasi-Resonant Ringing Choke Converter
■ Avalanche-Rated Power MOSFET Switch
■ Pulse-by-Pulse Current Limiting
■ Latched Over-Voltage and Thermal Protection
■ Maximum ON Time and OFF Time Set During Manufacture
■ Internal Under-Voltage Lockout with Hysteresis
FET Junction Temperature, TJ...... +150°C
Internal Frame Temperature, TF... +125°C
— FOR REFERENCE ONLY
■ Over-Molded SIP with Integral Isolated Heat Spreader
Operating Temperature Range,
TA............................... -20°C to +125°C
Storage Temperature Range,
T
............................. -40°C to +125°C
stg
Always order by complete part number: STR-S6513 .
™
Page 2
STR-S6513
OFF-LINE
SWITCHING REGULATOR
FUNCTIONAL BLOCK DIAGRAM
V
IN
5
UVLO
REF.
OVER-VOLT.
PROTECT
NO CONNECTION
8
R
FAULT
LATCH
SQ
9
DRAIN
1
SOURCE
2
TSD
TRIGGER
OSC.
R
R
ton
6
FDBK
toff
+
0.75 V
1000 pF
0.01 µF
OVER-CURRENT
4
PROTECTION
COMMON3
Dwg. FK-002-3
FAULT-LATCH
TRIGGER
& SOFT
START
3.3 kΩ
7
1 kΩ
6.8 kΩ
ALLOWABLE PACKAGE POWER DISSIPATION MAXIMUM SAFE OPERATING AREA
60
54 W
40
MOUNTING SURFACE
TEMPERATURE
RECOMMENDED MAX.
FRAME TEMP. = +100°C
100
t = 0.1 ms SINGLE PULSE
30
LIMITED
BY r
DS(on)
10
w
t = 1 ms SINGLE PULSE
w
t = 10 ms SINGLE PULSE
w
20
FREE AIR
3.2 W
ALLOWABLE PACKAGE POWER DISSIPATION in WATTS
0
20 60 100
TEMPERATURE in °C
LIMITED BY FRAME
TEMP. = +125°C MAX.
140
Dwg. GK-003-2
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1994 Allegro MicroSystems, Inc.
3.0
1.0
DRAIN CURRENT in AMPERES
0.3
0.1
3.0
NO HEAT SINK
NATURAL COOLING
T = +25°C
A
10 30 100 300
INFINITE HEAT SINK
DRAIN-TO-SOURCE VOLTAGE in VOLTS
DS
LIMITED BY V max
Dwg. GK-004-3
™
Page 3
STR-S6513
OFF-LINE
SWITCHING REGULATOR
ALLOWABLE AVALANCHE ENERGY
600
500
SINGLE PULSE
400
300
200
100
ALLOWABLE AVALANCHE ENERGY in mJ
0
20 40 80 120 160
0 60 100
STARTING CHANNEL TEMPERATURE in °C
DRAIN CURRENT = 5 A
SUPPLY VOLTAGE = 50 V
140
Dwg. GK-009-1
ELECTRICAL CHARACTERISTICS
at TA = +25°C, VIN = 18 V, voltage measurements are referenced to
Common (pin 3) (unless otherwise noted).
Limits
Characteristic Symbol Test Conditions Min. Typ. Max. Units
On-State Voltage V
Under-Voltage Lockout V
Over-Voltage Threshold V
OVP(th)
FET Leakage Current I
FET ON Resistance r
DS(on)
Output Fall Time t
Maximum ON Time t
Minimum OFF Time t
Over-Current Threshold V
Feedback Threshold V
OCP(th)
FDBK(th)
Soft-Start Current I
Fault-Latch Threshold Volt. V
Fault-Latch Holding Current I
Fault-Latch Reset Voltage V
Insulation RMS Voltage V
WM(RMS)
INT
INQ
DSS
f
on
off
SS
FL(th)
INH
INQ
Turn-on, increasing V
Turn-off, decreasing V
IN
IN
14.4 – 17.6 V
9.0 – 11 V
26 – 31 V
VDS = 400 V – – 300 µA
VGS = 10 V, ID = 5.5 A – 0.45 0.58 Ω
VDD = 200 V, ID = 5 A, 10% to 90% V
DS
– – 250 ns
18 – 22 µs
0.6 – 1.6 µs
700 – 800 mV
– 750 – mV
VSS = 0 V -2.2 – -3.4 mA
6.9 – 7.7 V
VIN reduced to 8.5 V – 340 400 µA
IIN <20 µA, VIN reduced from 31 V 6.5 – 8.5 V
All terminals simultaneous reference 2000 – – V
metal plate against backside
Supply Current I
IN(ON)
I
IN(OFF)
Thermal Shutdown T
Thermal Resistance R
J
θJM
Operating 18 – 28 mA
Start up, VIN =14 V – – 100 µA
125 150 – °C
FET junction to mounting surface – 2.0 – °C/W
NOTES: Negative current is defined as coming out of (sourcing) the specified device terminal.
Typical Data is for design information only.
Page 4
STR-S6513
OFF-LINE
SWITCHING REGULATOR
WARNING: lethal potentials are present. See text.
5
AC INPUT
100 V/120 V
RECTIFIER
FULL-BRIDGE
5
+
STR-S6513
TYPICAL APPLICATION
89
R
SQ
+ OUTPUT
1
2
+
+
VOLTAGE
SENSE
7
★
+
6
4
+
3
APPLICATIONS INFORMATION
WARNING —
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.
These devices are designed to be operated at lethal voltages and energy levels.
– OUTPUT
Dwg. EK-002-2
The power MOSFET outputs of these devices are similar to the International Rectifier type IRF740. 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
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
™
Page 5
STR-S6513
OFF-LINE
SWITCHING REGULATOR
0.953
0.610
±0.008
0.118
Dimensions in Inches
(for reference only)
±0.012
T REF.
M
0.130
ø
±0.008
0.216
±0.008
±0.012
0.906
0.033
+0.008
–0.004
1
0.016
PACKAGE
CENTER
7
0.100
±0.004
LEAD
CENTER
±0.008
0.709
0.276
±0.016
0.026
+0.008
–0.004
0.130
±0.004
0.216
0.177
±0.028
Dwg. MK-003-91 in
NOTE: Exact body and lead configuration at vendor’s option within limits shown.
Page 6
STR-S6513
OFF-LINE
SWITCHING REGULATOR
24.2
15.5
±0.2
3.0
±0.3
23.0
Dimensions in Millimeters
(controlling dimensions)
±0.3
T REF
M
3.3
ø
±0.2
±0.2
18.0
5.5
±0.2
3.3
±0.1
1
0.85
+0.2
–0.1
0.4
PACKAGE
CENTER
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.
7
LEAD
CENTER
NOTE: Exact body and lead configuration at vendor’s option within limits shown.
2.54
±0.1
0.65
+0.2
–0.1
7.0
±0.4
5.5
4.5
±0.7
Dwg. MK-003-91 mm
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
™
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