STR-M6511
OFF-LINE SWITCHING REGULATOR
鈥?WITH POWER MOSFET OUTPUT
DRAIN
1
OSC.
FAULT
LATCH
Data Sheet
28102
SOURCE
2
R
COMMON
OVER-CURRENT
PROTECTION
V IN
S
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.
3
+
FAULT
4
5
UVLO
FDBK
FAULT-LATCH
TRIGGER &
SOFT START
6
REF.
7
Dwg. PK-002
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
擄
C
Internal Frame Temperature, T
F
...
+125
擄
C
Operating Temperature Range,
T
A
...............................
-20
擄
C to +125
擄
C
Storage Temperature Range,
T
stg
.............................
-40
擄
C to +125
擄
C
D
S
I
O
C
T
N
D
E
N
U
E
N
ER
I
FEATURES
R
P
U
Y
D
L
O
N
O
T
C
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.
E
C
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
鈥?/div>
F
R
O
R
F
E
Always order by complete part number:
STR-M6511
.
鈩?/div>
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