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Giải thích chi tiết về linh kiện  Off-Line PWM Controllers with Integrated Power MOSFET
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nhà sản xuất  SANKEN [Sanken electric]
Trang chủ  http://www.sanken-ele.co.jp/en
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Off-Line PWM Controllers with Integrated Power MOSFET
STR3A400 Series
Data Sheet
STR3A400-DSE Rev.2.1
SANKEN ELECTRIC CO.,LTD.
1
Sept. 18, 2015
http://www.sanken-ele.co.jp/en/
© SANKEN ELECTRIC CO.,LTD. 2014
Description
The STR3A400 series are power ICs for switching
power supplies, incorporating a MOSFET and a current
mode PWM controller IC.
The low standby power is accomplished by the
automatic switching between the PWM operation in
normal operation and the burst-oscillation under light
load
conditions.
The
product
achieves
high
cost-performance power supply systems with few
external components.
Features
● Low Thermal Resistance Package
● Improving circuit efficiency (Since the step drive
control can keep VRM of secondary rectification
diodes low, the circuit efficiency can be improved by
low VF)
● Current Mode Type PWM Control
● Soft Start Function
● Automatic Standby Function
No Load Power Consumption < 15mW
● Operation Mode
Normal Operation -----------------------------PWM Mode
Light Load Operation ------------------------ Green-Mode
Standby ---------------------------- Burst Oscillation Mode
● Random Switching Function
● Slope Compensation Function
● Leading Edge Blanking Function
● Bias Assist Function
● Protections
Two
Types
of
Overcurrent
Protection
(OCP):
Pulse-by-Pulse,
built-in
compensation
circuit
to
minimize OCP point variation on AC input voltage
Overload Protection (OLP): Auto-restart
Overvoltage Protection (OVP): Latched shutdown or
auto-restart
Thermal Shutdown (TSD): Latched shutdown or
auto-restart with hysteresis
Typical Application
VAC
C1
C5
R1
D1
D2
R2
C2
T1
D51
C51
R51
R52
U51
R54
R56
C52
D
P
S
PC1
PC1
C3
ROCP
BR1
R53
R55
L51
C53
C4
VOUT
GND
1
2
3
4
D/ST D/ST
VCC
NC
S/OCP
FB/OLP
GND
D/ST D/ST
8
7
6
5
STR3A400
U1
CY
TC_STR3A400_1_R2
Package
DIP8
Not to Scale
Lineup
● Electrical Characteristics
fOSC(AVG)(typ.) = 65 kHz
VDSS(min.) = 650 V
Products
OVP, TSD Operation
STR3A45×
Latched shutdown
STR3A45×D
Auto-restart
● MOSFET ON Resistance and Output Power, P
OUT*
Products
RDS(ON)
(max.)
POUT
(Adapter)
POUT
(Open frame)
AC230V
AC85
~265V
AC230V
AC85
~265V
STR3A451
4.0 Ω
29.5 W
19.5 W
37 W
23 W
STR3A451D
STR3A453
1.9 Ω
37 W
27.5 W
53 W
35 W
STR3A453D
STR3A455
1.1 Ω
45 W
35 W
65 W
44 W
STR3A455D
* The output power is actual continues power that is measured
at 50 °C ambient. The peak output power can be 120 to
140 % of the value stated here. Core size, ON Duty, and
thermal design affect the output power. It may be less than
the value stated here.
Applications
● AC/DC adapter
● White goods
● Other SMPS
余白上 35mm
ヘッター1 線
長さ 174 mm
下方向 33mm
右方向-2mm
ヘッター1 線
長さ 174 mm
下方向 33mm
右方向-2mm


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