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STRM6511 Datasheet(PDF) 1 Page - Allegro MicroSystems

Part No. STRM6511
Description  OFF-LINE SWITCHING REGULATOR WITH POWER MOSFET OUTPUT
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
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STRM6511 Datasheet(HTML) 1 Page - Allegro MicroSystems

   
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DISCONTINUED
PRODUCT
FOR
REFERENCE
ONL
Y
OFF-LINE SWITCHING REGULATOR
– WITH POWER MOSFET OUTPUT
The STR-M6511 is specifically designed to meet the requirement for
increased integration and reliability in off-line flyback converters operat-
ing 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.
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 protec-
tion, 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.
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 800 V at 10 A, is also available.
FEATURES
s Quasi-Resonant Ringing Choke Converter
s Avalanche-Rated Power MOSFET Switch
s Pulse-by-Pulse Current Limiting
s Latched Over-Voltage and Thermal Protection
s Maximum ON Time and OFF Time Set During Manufacture
s Internal Under-Voltage Lockout with Hysteresis
s Over-Molded SIP with Integral Isolated Heat Spreader
Always order by complete part number: STR-M6511 .
SOURCE
DRAIN
UVLO
COMMON
V IN
OVER-CURRENT
PROTECTION
Dwg. PK-002
FAULT-LATCH
TRIGGER &
SOFT START
FDBK
FAULT
LATCH
REF.
1
2
3
4
5
6
7
OSC.
RS
FAULT
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
IN ...........................
35 V
Drain-Source Voltage, V
DS ..............
450 V
Continuous Drain Current, I
D ............. 11 A
1 ms Single-Pulse Drain Current,
I
DM ................................................. 40 A
Single-Pulse Avalanche Energy,
E
A .............................................. 400 mJ
Soft-Start/Fault-Latch Trigger Voltage,
V
SS/FL .............................................
10 V
Feedback Input Current, I
FDBK ........ 20 mA
Over-Current Protection Voltage,
V
OCP .............................................
3.5 V
Insulation Voltage,V
WM(RMS) ...........
2000 V
Package Power Diss., P
D ........ See Graph
FET Junction 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 ............................. -40°C to +125°C
STR-M6511


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