STR-M6529 [ALLEGRO]
OFF-LINE SWITCHING REGULATOR WITH POWER MOSFET OUTPUT; 与功率MOSFET输出离线开关稳压器
| 型号： | STR-M6529 |
| 厂家： | 
ALLEGRO MICROSYSTEMS |
| 描述： | OFF-LINE SWITCHING REGULATOR WITH POWER MOSFET OUTPUT |
| 文件： | 总6页 (文件大小：75K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STR-M6529
OFF-LINE SWITCHING REGULATOR
– WITH POWER MOSFET OUTPUT
The STR-M6529 is specifically designed to meet the requirement
for increased integration and reliability in off-line flyback converters
operating in the quasi-resonant ringing choke mode. The device
incorporates the primary control and drive circuit with a discrete ava-
lanche-rated high-voltage power MOSFET.
DRAIN
1
2
FAULT
LATCH
OSC.
SOURCE
R
S
3
4
5
6
7
COMMON
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.
+
FAULT
OVER-CURRENT
PROTECTION
UVLO
V
IN
FDBK
REF.
Cycle-by-cycle current limiting, soft start, under-voltage lock-out
with hysteresis, over-voltage protection, and thermal shutdown protect
the devices 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-
molded single-in-line power package.
FAULT-LATCH
TRIGGER
&
SOFT START
Dwg. PK-002
Proven in substantial volumes, this device and its fixed-frequency
counterparts represents a significant advance in off-line SMPS reliability
growth and integration.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VIN ........................... 35 V
Drain-Source Voltage, VDS .............. 800 V
Continuous Drain Current, ID ............ 5.4 A
1 ms Single-Pulse Drain Current,
FEATURES
IDM ................................................. 20 A
Single-Pulse Avalanche Energy,
■ Quasi-Resonant Ringing Choke Converter
■ Avalanche-Rated Power MOSFET Switch
■ Pulse-by-Pulse Current Limiting
EA .............................................. 400 mJ
Soft-Start/Fault-Latch Trig. Voltage,
VSS/FL ............................................. 12 V
Feedback Input Current, IFDBK ........ 20 mA
Over-Current Protection Voltage,
■ Latched Over-Voltage and Thermal Protection
■ Maximum ON Time and OFF Time Set During Manufacture
■ Internal Under-Voltage Lockout with Hysteresis
■ Over-Molded SIP with Integral Isolated Heat Spreader
VOCP ............................................. 3.5 V
Insulation Voltage,VWM(RMS) ........... 2000 V
Package Power Diss., PD ........ See Graph
FET Junction Temperature, TJ ...... +150°C
Internal Frame Temperature, TF ... +125°C
Operating Temperature Range,
TA ............................... -20°C to +125°C
Storage Temperature Range,
Always order by complete part number: STR-M6529 .
Tstg ............................. -40°C to +125°C
™
STR-M6529
OFF-LINE
SWITCHING REGULATOR
FUNCTIONAL BLOCK DIAGRAM
V
IN
5
DRAIN
1
2
R
S
UVLO
OVER-VOLT.
PROTECT
FAULT
LATCH
SOURCE
Q
REF.
TSD
OSC.
FAULT-LATCH
TRIGGER
& SOFT
7
TRIGGER
START
R
toff
R
OVER-CURRENT
PROTECTION
ton
4
3
+
0.75 V
1000 pF
COMMON
0.01 µF
6
FDBK
Dwg. FK-002-2
ALLOWABLE PACKAGE POWER DISSIPATION
MAXIMUM SAFE OPERATING AREA
60
100
MOUNTING SURFACE
TEMPERATURE
54 W
t
= 0.1 ms SINGLE PULSE
30
10
w
RECOMMENDED MAX.
FRAME TEMP. = +100°C
LIMITED
BY r
t
= 1 ms SINGLE PULSE
w
40
t
= 10 ms SE PULSE
DS(on)
w
3.0
1.0
LIMITED BY FRAME
TEMP. = +125°C MAX.
20
NO HEAT SINK
NATURAL COOLING
T
= +25°C
A
0.3
0.1
FREE AIR
2.8 W
0
3.0
10
30
100
300
1000
140
20
60
100
DRAIN-TO-SOURCE VOLTAGE in VOLTS
TEMPERATURE in °C
Dwg. GK-004-1
Dwg. GK-003-1
™
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1994 Allegro MicroSystems, Inc.
STR-M6529
OFF-LINE
SWITCHING REGULATOR
600
500
400
300
200
100
0
SINGLE PULSE
DRAIN CURRENT = 5 A
SUPPLY VOLTAGE = 50 V
ALLOWABLE AVALANCHE ENERGY
0
20
40
60
80
100
120
140
160
STARTING CHANNEL TEMPERATURE in °C
Dwg. GK-009-1
ELECTRICAL CHARACTERISTICS at T = +25°C, V = 18 V, voltage measurements are referenced to
A
IN
Common (pin 3) (unless otherwise noted).
Limits
Characteristic
Symbol
VINT
Test Conditions
Min. Typ. Max. Units
On-State Voltage
Turn-on, increasing VIN
Turn-off, decreasing VIN
14.4
9.0
26
–
–
17.6
11
V
V
Under-Voltage Lockout
Over-Voltage Threshold
FET Leakage Current
FET ON Resistance
Output Fall Time
VINQ
VOVP(th)
IDSS
rDS(on)
tf
–
31
V
VDS = 800 V
–
–
300
2.2
250
27.5
4.0
800
–
µA
Ω
VGS = 10 V, ID = 2.5 A
–
1.8
–
VDD = 250 V, ID = 2.5 A, 10% to 90% VDS
–
ns
µs
µs
mV
mV
mA
V
Maximum ON Time
ton
22.5
2.0
700
–
–
Minimum OFF Time
Over-Current Threshold
Feedback Threshold
Soft-Start Current
toff
–
VOCP(th)
VFDBK(th)
ISS
–
750
–
VSS = 0 V
-2.2
8.0
–
-3.4
9.2
Fault-Latch Threshold Volt.
Fault-Latch Holding Current
Fault-Latch Reset Voltage
Insulation RMS Voltage
VFL(th)
IINH
–
VIN reduced to 8.5 V
340 400
µA
V
VINQ
IIN <20 µA, VIN reduced from 31 V
6.5
2000
–
–
8.5
–
VWM(RMS)
All terminals simultaneous reference
metal plate against backside
V
Supply Current
IIN(ON)
IIN(OFF)
TJ
Operating
16
–
–
–
26
100
–
mA
µA
Start up, VIN =14 V
Thermal Shutdown
Thermal Resistance
125 150
2.0
°C
RθJM
FET 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.
STR-M6529
OFF-LINE
SWITCHING REGULATOR
TYPICAL APPLICATION
WARNING: lethal potentials are present. See text.
+ OUTPUT
5
STR-M6529
1
R
+
+
2
S
Q
VOLTAGE
SENSE
+
7
– OUTPUT
★
4
3
+
+
6
Dwg. EK-002-1
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
™
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
STR-M6529
OFF-LINE
SWITCHING REGULATOR
Dimensions in Inches
(for reference only)
0.780 ±0.008
T
REF
M
0.130
±0.008
ø
0.216
±0.008
0.157
±0.008
0.128
±0.004
0.276
±0.02
0.216
7
1
0.100
±0.004
0.026
+0.008
–0.004
0.033
+0.008
–0.004
0.177±0.028
Dwg. MK-003-7 in
NOTE: Exact body and lead configuration at vendor’s option within limits shown.
STR-M6529
OFF-LINE
SWITCHING REGULATOR
Dimensions in Millimeters
(controlling dimensions)
19.8 ±0.2
T
REF.
M
3.3
5.5
±0.2
±0.2 ø
4.0
±0.2
3.25
±0.1
7.0
±0.5
5.5
7
1
2.54
±0.1
0.85
+0.2
–0.1
0.65
+0.2
–0.1
4.5
±0.7
Dwg. MK-003-7 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.
™
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
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