Off-Line PWM Controllers with Integrated Power MOSFET
STR4A100 Series
Data Sheet
Description
Package
The STR4A100 series are power ICs for switching
power supplies, incorporating a sense MOSFET and a
current mode PWM controller IC.
DIP8
SOIC8
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.
Not to Scale
Lineup
● Electrical Characteristics
VD/ST(max.) = 730 V
Products
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
RDS(ON)
(max.)
Package fOSC(AVG)
IDLIM(H)
0.365 A
STR4A162S
STR4A162D
STR4A164D
STR4A164HD
SOIC8
DIP8
24.6 Ω
65kHz
12.9 Ω
12.9 Ω
0.520 A
0.485 A
DIP8
100kHz
● Output Power, POUT
*
● Soft Start Function
● Protections
Adapter
Open frame
Products
AC85
~265V
AC85
~265V
− 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
AC230V
AC230V
STR4A162S
STR4A162D
STR4A164D
STR4A164HD
5 W
5.5 W
8 W
4 W
4.5 W
6 W
7 W
7.5 W
10 W
13 W
5.5 W
6 W
8.5 W
10.5 W
9 W
7 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.
Typical Application
L2
D51
BR1
VOUT
(+)
T1
VAC
R54
R51
Application
R1
C5
PC1
R52
C1
P
R55
U1
C51
● White goods
D1
STR4A100
S
C53
● Auxiliary power for Flat TVs
● Low power AC/DC adapter
● Battery Chargers
S/GND
S/GND
S/GND
D/ST
C52 R53
4
5
6
7
U51
R56
D2 R2
VCC
(-)
2
1
● Other SMPS
FB/OLP
S/GND
D
C2
8
PC1
C3
C6
TC_STR4A100_1_R1
STR4A100 - DSJ Rev.3.3
Aug.06, 2015
SANKEN ELECTRIC CO.,LTD.
http://www.sanken-ele.co.jp
1
© SANKEN ELECTRIC CO.,LTD. 2011