Off-line PWM Controllers with Integrated Power MOSFET
STR6A124MV
Data Sheet
Description
Package
The STR6A124MV is power IC for switching power
supplies, incorporating a MOSFET and a current mode
PWM controller IC.
DIP8
The operating mode of the IC automatically changes
to green-mode or burst oscillation mode according to
load in order to improve the all load efficiency. The
product achieves high cost-performance power supply
systems with few external components.
Not to Scale
Specifications
● fOSC(AVG) (typ.) = 65 kHz
● VDSS (min.) = 700 V
● RDS(ON) (max.) = 1.4 Ω
Features
● Improving Circuit Efficiency
(1)
(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
● Adjustable Standby Operating Point
No Load Power Consumption < 15 mW
● Operation Mode
● Output Power, POUT
Adapter
Open Frame
Part Number
AC85
AC85
~265V
23 W
AC230V
46 W
AC230V
29 W
~265V
STR6A124MV
33 W
Applications
● White Goods
● Office Automation Equipment
● Audio Visual Equipment
● Industrial Equipment
● Other Switched-mode Power Supply
Fixed Frequency: 65 kHz
Green-mode: 25 kHz to 65 kHz
Burst Oscillation Mode
● Random Switching Function
● Slope Compensation Function
● Leading Edge Blanking Function
● Bias Assist Function
(1) 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, duty cycle, and
thermal design affect the output power. It may be less than
the value stated here.
● 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 with Timer (OLP): Auto-restart
Overvoltage Protection (OVP): Latched shutdown
Thermal Shutdown (TSD): Latched shutdown
Typical Application
BR1
D51
VAC
T1
P
C1
U1
ROCP
C51
1
8
7
S/OCP
BA
D/ST
D/ST
S
C4
2
3
4
RBA
GND
C3
D2
5
VCC
FB/OLP
STR6A124MV
D
C2
PC1
CY
TC_STR6A100xV_1_R2
STR6A124MV-DSE Rev.1.0
Oct. 18, 2023
SANKEN ELECTRIC CO., LTD.
https://www.sanken-ele.co.jp/en/
1
© SANKEN ELECTRIC CO., LTD. 2023