STR5A100D Datasheet, PDF (1/21 Pages) Sanken electric – Off-Line PWM Controllers with Integrated Power MOSFET

Primary Side Regulation
Off-Line PWM Controllers with Integrated Power MOSFET
STR5A100D Series
General Descriptions
The STR5A100D series is power IC with primary side
regulation for switching power supplies, incorporating a
sense MOSFET and a current mode PWM controller IC.
Employing the Primary Side Regulation, the product
achieves power supply systems with few external
components. Including a startup circuit and a standby
function in the controller, the product achieves the low
standby power by the automatic switching between the
PWM operation in normal operation and the
burst-oscillation under light load conditions. The rich set
of protection features helps to realize low component
counts, and high performance-to-cost power supply.
Features
 Primary Side Regulation
 Constant Voltage (CV), Constant Current (CC) Control
 Auto Standby Function
No Load Power Consumption < 30mW
 Operation Mode
・Normal Operation -------------------------- PWM Mode
・Light Load Operation ----------------------Green-Mode
・Standby------------------------- Burst Oscillation Mode
 Build-in Startup Circuit
(reducing power consumption at standby operation,
shortening the startup time)
 Current Mode Type PWM Control
 Random Switching Function
 Leading Edge Blanking Function
 Soft Start Function (reducing the stress of power
MOSFET and secondary side rectifier diode at startup)
 Protections
Overcurrent Protection (OCP)------------Pulse-by-Pulse
Overvoltage Protection (OVP) ------------- Auto-Restart
Thermal Shutdown Protection (TSD) ----- Auto-Restart
Package
DIP8
FB ₁
VCC 2
D/ST 4
Not to scale
8 ^COMP
7 ^S/GND
6 S/GND
5 S/GND
Lineup
 Electrical Characteristics
V_D/ST(max.) = 730 V
f_OSC(AVG)(typ.) = 65 kHz
Products
R_DS(ON) (max.)
STR5A162D
24.6 Ω
STR5A164D
13 Ω
I_DLIM(H)
0.285 A
0.41 A
 Output Power, P_OUT*
Products
Adapter
AC85
AC230V _~265V
STR5A162D 4 W 3.5 W
Open frame
AC85
AC230V _~265V
5 W 4.5 W
STR5A164D 6.0 W 5.5 W 8.5 W 7 W
* The EI-16 core of transformer is assumed. 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 Circuit
VAC
C6
BR1
L1
C1
C2
U1
S/GND
5
D/ST
4
S/GND
6
S/GND
7
VCC
2
C5
COMP
R7
8
FB ₁
STR5A100D
C3
R1
R2
D1
T1
D50
VOUT
(+)
R51 C51
P
S1
C52 R52
D2 R6
(-)
R3 _D
R4
C4
R5
Applications
 White Goods
 Other SMPS
STR5A100D-DS Rev.1.3
SANKEN ELECTRIC CO.,LTD.
1
Aug. 08, 2014
http://www.sanken-ele.co.jp/en/