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STR4A100 Datasheet, PDF (1/23 Pages) Sanken electric – Off-Line PWM Controllers with Integrated Power MOSFET
Off-Line PWM Controllers with Integrated Power MOSFET
STR4A100 Series
Data Sheet
Description
The STR4A100 series are power ICs for switching
power supplies, incorporating a sense 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
● Current Mode Type PWM Control
● Auto Standby Function
No Load Power Consumption < 10 mW
● Operation Mode
Normal Operation: PWM Mode
Standby : Burst Oscillation Mode
● Random Switching Function
● Slope Compensation Function
● Leading Edge Blanking Function
● Bias Assist Function
● Soft Start Function
● Protections
− Overcurrent Protection (OCP) : Pulse-by-Pulse,
built-in compensation circuit to minimize OCP point
variation on AC input voltage
− Overload Protection (OLP) : Aauto-restart
− Overvoltage Protection (OVP) : Auto-restart
− Thermal Shutdown (TSD) : Auto-restart with
hysteresis
Typical Application
BR1
VAC
C1
U1
STR4A100
S/GND
5
S/GND
6
S/GND
7
S/GND
8
D/ST
4
VCC
2
FB/OLP
1
C3
D51
T1
C5
R1
P
D1
C51
S
D2 R2
L2
R54
PC1 R51
R55
R52
C52 R53
U51
R56
C2
PC1
D
C6
VOUT
(+)
C53
(-)
Package
DIP8
SOIC8
Not to Scale
Lineup
● Electrical Characteristics
VD/ST(max.) = 730 V
Products
Package fOSC(AVG)
STR4A162S
SOIC8
STR4A162D
STR4A164D
DIP8
65kHz
STR4A164HD DIP8 100kHz
RDS(ON)
(max.)
24.6 Ω
12.9 Ω
12.9 Ω
IDLIM(H)
0.365 A
0.520 A
0.485 A
● Output Power, POUT*
Products
STR4A162S
Adapter
AC85
AC230V ~265V
5W
4W
Open frame
AC85
AC230V ~265V
7 W 5.5 W
STR4A162D
5.5 W 4.5 W 7.5 W 6 W
STR4A164D
8W
6W
10 W 8.5 W
STR4A164HD
9W
7W
13 W 10.5 W
* 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.
Application
● White goods
● Auxiliary power for Flat TVs
● Low power AC/DC adapter
● Battery Chargers
● Other SMPS
TC_STR4A100_1_R1
STR4A100 - DSJ Rev.3.3
SANKEN ELECTRIC CO.,LTD.
1
Aug.06, 2015
http://www.sanken-ele.co.jp
© SANKEN ELECTRIC CO.,LTD. 2011
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