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STR-F6632 Datasheet

  • STR-F6632

  • OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATORS

  • 281.25KB

  • 16页

  • ALLEGRO

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Series STR-F6600
INTERIM DATA SHEET
(Subject to change without notice)
February 22, 2000
OFF-LINE QUASI-RESONANT
FLYBACK SWITCHING REGULATORS
The Series STR-F6600 is specifically designed to satisfy the require-
ments for increased integration and reliability in off-line quasi-resonant
flyback converters. The series incorporates a primary control and drive
circuit with discrete avalanche-rated power MOSFETs.
Data Sheet
28102.8
FDBK
OSC.
LATCH
OCP
UVLO
OVP
TSD
Covering the power range from below 25 watts up to 300 watts for
100/115/230 VAC inputs, and up to 150 watts for 85 to 265 VAC
universal input, these devices can be used in a range of applications,
from battery chargers and set top boxes, to televisions, monitors, and
industrial power supply units.
Cycle-by-cycle current limiting, under-voltage lockout with hyster-
esis, over-voltage protection, and thermal shutdown protects the power
supply during the normal overload and fault conditions. Over-voltage
protection and thermal shutdown are latched after a short delay. The
latch may be reset by cycling the input supply. Low-current startup and
a low-power standby mode selected from the secondary circuit completes
a comprehensive suite of features. The series is provided in a five-pin
overmolded TO-3P style package, affording dielectric isolation without
compromising thermal characteristics.
2
3
V
IN
1
OVER-CURRENT
& FEEDBACK
4
Dwg. PK-011-1
ABSOLUTE MAXIMUM RATINGS
at T
A
= +25
掳
C
Control Supply Voltage, V
IN
. . . . . . . .
35 V
Drain-Source Voltage, V
DS
Series STR-F6620 . . . . . . . . . . . .
450 V
Series STR-F6630 . . . . . . . . . . . .
500 V
Series STR-F6650 . . . . . . . . . . . .
650 V
Series STR-F6670 . . . . . . . . . . . .
900 V
Drain Switching Current, I
D
. . .
See Table
Peak Drain Current, I
DM
. . . . . .
See Table
Avalanche Energy, E
AS
. . . . . . .
See Table
OCP/FB Voltage Range,
V
OCP
. . . . . . . . . . . . . . .
-0.3 V to +6 V
Package Power Dissipation, P
D
control (V
IN
x I
IN(ON)
) . . . . . . . . .
0.8 W
total . . . . . . . . . . . . . . . . . . .
See Graph
FET Channel Temperature, T
J
. . .
+150
掳
C
Internal Frame Temperature, T
F
. .
+125
掳
C
Operating Temperature Range,
T
A
. . . . . . . . . . . . . . .
-20
掳
C to +125
掳
C
Storage Temperature Range,
T
S
. . . . . . . . . . . . . . . .
-40
掳
C to +125
掳
C
GROUND
SOURCE
SUPPLY
DRAIN
5
FEATURES
s
Flyback Operation with Quasi-Resonant Soft Switching
for Low Power Dissipation and EMI
s
Rugged Avalanche-Rated MOSFET
s
Choice of MOSFET Voltage and
r
DS(on)
s
Full Over-Current Protection (no blanking)
s
Under-Voltage Lockout with Hysteresis
s
Over-Voltage Protection
s
Direct Voltage Feedback
s
Low Start-up Current (<400
碌A)
s
Low-Frequency, Low-Power Standby Operation
s
Overmolded 5-Pin Package
Always order by complete part number, e.g.,
STR-F6652
.
TM
鈩?/div>

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