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STR-S6411 Datasheet(PDF) 1 Page - Allegro MicroSystems

Part No. STR-S6411
Description  OFF-LINE SWITCHING REGULATORS . WITH POWER MOSFET OUTPUT
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
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STR-S6411 Datasheet(HTML) 1 Page - Allegro MicroSystems

   
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DISCONTINUED
PRODUCT
FOR
REFERENCE
ONL
Y
STR-S6411 AND
STR-S6411F
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.
Cycle-by-cycle and average-current limiting, soft start, under-
voltage 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.
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.
FEATURES
s PWM Flyback Conversion or Forward Conversion
s Output Power to 250 W
s Pulse-by-Pulse Current Limiting
s Fixed-Frequency 100 kHz PWM
s Avalanche-Rated Power MOSFET Switch
s Soft Start
s Internal Under-Voltage Lockout and Thermal Shutdown
s Low External Component Count
s Over-Molded SIP with Isolated Heat Spreader
Always order by complete part number:
STR-S6411 or STR-S6411F .
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
IN ............................ 35 V
Drain-Source Voltage, V
DS ............... 800 V
Drain Current, I
D
continuous .....................................
±5 A
single pulse, t
w ≤1 ms .................. ±20 A
Avalanche Energy, E
A
single pulse ............................... 400 mJ
Gate-Source Voltage, V
GS ................ ±20 V
Gate-Drive Current Range,
I
G .................................
-0.7 A to +1.5 A
Over-Current Protection Voltage Range,
V
OCP ............................. -0.3 V to +4.0 V
Insulation RMS Voltage,
V
WM(RMS) ..................................... 2000 V
Package Power Dissipation,
P
D ........................................ See Graph
FET Channel Temperature, T
J ...... +150°C
Internal Frame Temperature, T
F ... +125°C
Operating Temperature Range,
T
A ...............................
-20
°C to +125°C
Storage Temperature Range,
T
stg .............................
-30
°C to +125°C
SOURCE
DRAIN
UVLO
SIGNAL
GROUND
V IN
OVER-CURRENT
PROTECTION
Dwg. PK-003
SOFT
START
GATE
FDBK
PWM
POWER
GROUND
LATCH
REF.
1
2
3
4
5
6
7
8
9
OSC.
OFF-LINE SWITCHING REGULATORS
– WITH POWER MOSFET OUTPUT


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