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STR-A6131 Datasheet

  • STR-A6131

  • 120 V/12 or 16 W Flyback Switching Regulators

  • 7頁

  • ALLEGRO   ALLEGRO

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ng rs
i
ch to
it la
Sw egu
R
STR-A6131
AND
STR-A6132
120 V/12 or 16 W
Flyback Switching Regulators
The STR-A6131 and STR-A6132 are PRC topology (fixed off-time)
regulators specifically designed to satisfy the requirements for increased
integration and reliability in flyback converters. They incorporate a
primary control and drive circuit with avalanche-rated power
MOSFETs. The STR-A6132 features higher switching current and
avalanche-energy ratings and lower on-resistance.
Covering the power range from below 12 watts to 16 watts for a 120
VAC input, these devices can be used in a range of applications, from
DVD and VCR players to ac adapters for cellular phones and digital
cameras. An auto-standby function reduces power consumption at light
load, while multiple protections, including the avalanche energy guaran-
teed MOSFET, provide high reliability of system design.
Cycle-by-cycle current limiting, undervoltage lockout with hyster-
esis, overvoltage protection, and thermal shutdown protect the power
supply during the normal overload and fault conditions. Overvoltage
protection and thermal shutdown are latched after a short delay. The
latch may be reset by cycling the input supply. Low start-up current and
a low-power standby mode selected from the secondary circuit completes
a comprehensive suite of features. Both devices are provided in an 8-pin
mini-DIP plastic package.
FEATURES
AND
BENEFITS
鈻?/div>
Rugged 500 V Avalanche-Rated MOSFET
Simplified Surge Absorption
No V
DSS
Derating Required
鈻?/div>
Choice of
r
DS(on)
(2.62
鈩?/div>
or 3.95
鈩?/div>
maximum)
鈻?/div>
Two Operational Modes by Automatic Switching:
PRC Mode for Normal Operation
Burst Mode for Stand-By Operation or Light Loads
鈻?/div>
Built-In Leading Edge Blanking
鈻?/div>
Low Start-Up Current
Start-Up Circuit Disabled in Operation
鈻?/div>
Low Operating Current (1.5 mA typ)
鈻?/div>
Automatic Burst Stand-By (intermittent operation)
Input Power <0.1 W at No Load
鈥?continued
Always order by complete part number, e.g.,
STR-A6131
.
Data Sheet
28103.21*
ABSOLUTE MAXIMUM RATINGS
at T
A
= +25擄C
Control Supply Voltage, V
CC
. . . .
35 V
Drain-Source Voltage, V
DSS . . . . . .
500 V
Drain Switching Current, I
D
STR-A6131 . . . . . . . . . . . . . .
3.2 A*
STR-A6132 . . . . . . . . . . . . . .
4.0 A*
Peak Drain Switching Current, I
DM
STR-A6131 . . . . . . . . . . . . . . .
3.2 A
STR-A6132 . . . . . . . . . . . . . . .
4.0 A
Single-Pulse Avalanche Energy, E
AS
STR-A6131 . . . . . . . . . . . . . .
32 mJ
STR-A6132 . . . . . . . . . . . . . .
78 mJ
Start-Up-Pin Voltage Range,
V
startup
. . . . . . . . .
鈥?.3 V to +600 V
OCP Voltage Range,
V
OCP
. . . . . . . . . . . .
鈥?.5 V to +6 V
FB/OLP Voltage Range,
V
FB/OLP
. . . . . . . . . .
鈥?.5 V to +10 V
Package Power Dissipation, P
D
control (V
CC
脳 I
CC(ON)
) . . . . .
0.15 W
MOSFET (V
DSS
脳 I
D
) . . . . . .
1.35 W
total . . . . . . . . . . . . . . . . . . . .
1.5 W
MOSFET Channel Temp., T
J
.
+150擄C
Internal Frame Temp., T
F
. . . .
+125擄C
Operating Temperature Range,
T
A
. . . . . . . . . . .
-20擄C to +125擄C鈥?/div>
Storage Temperature Range,
T
S
. . . . . . . . . . . .
-40擄C to +125擄C
* Drain switching current is limited by tem-
perature (page 2) and safe operating area
(page 4).
鈥燜or the availability of parts meeting -40擄C
requirements, contact Allegro鈥檚 Sales Represen-
tative.
Sanken Power Devices
from Allegro MicroSystems

STR-A6131 產(chǎn)品屬性

  • 0現(xiàn)貨

  • 停產(chǎn)

  • STR-A6100

  • 散裝

  • 停產(chǎn)

  • 隔離

  • 是

  • 500V

  • 17.5 V

  • 10V ~ 35V

  • -

  • -

  • 15 W

  • 限流，過載，超溫，過壓

  • -

  • -20°C ~ 125°C（TA）

  • 8-DIP（0.300"，7.62mm），7 引線

  • 8-DIP

  • 通孔

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