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STR-W6735 Datasheet(PDF) 3 Page - Allegro MicroSystems

Part No. STR-W6735
Description  Quasi-Resonant Topology Primary Switching Regulators
Download  14 Pages
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
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STR-W6735 Datasheet(HTML) 3 Page - Allegro MicroSystems

 
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Quasi-Resonant Topology
Primary Switching Regulators
STR-W6735
3
Temperature, TF (°C)
0
20
40
60
80
100
0
25
50
75
100
125
150
Drain-to-Source Voltage, VDS (V)
10.00
20.00
0.10
1.00
0.01
100.00
10
100
1000
1
0.1
ms
Current
limit
due
to R
DS(on)
Refer to figure 1 for MOSFET SOA
temperature derating coefficient
Figure 1 – MOSFET Safe Operating Area
Derating Curve
Figure 2 – MOSFET Safe Operating Area
Drain Current versus Voltage
at TA = 25°C, Single Pulse
D
S/GND
OCP/BD
VCC
FB
Start
Stop
Burst
R
S
Q
Reg&
Iconst
OVP
DRIVE
Reg
Protection
latch
S
R Q
FB
OCP
BSD
BD
Bottom Selector
Counter
SS/OLP
OLP
Delay
S
R
Q
OSC
MaxON
Soft Start
Burst
Control
Burst
Control
4
+
-
+
-
+
-
+
-
1
3
6
7
5
Number
Name
Description
Functions
1
D
Drain
MOSFET drain
2
NC
Clipped
No connection
3
S/GND
Source/ground terminal
MOSFET source and ground
4
VCC
Power supply terminal
Input of power supply for control circuit
5
SS/OLP
Soft Start/Overload Protection terminal
Input to set delay for Overload Protection and Soft Start operation
6
FB
Feedback terminal
Input for Constant Voltage Control and Burst (intermittant)Mode
oscillation cotnrol signals
7
OCP/BD
Overcurrent Protection/Bottom Detection
Input for overcurrent detection and bottom detection signals
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com


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