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STR-W6700

更新时间： 2024-12-01 08:58:59
品牌 Logo 应用领域
三垦 - SANKEN 开关
页数 文件大小 规格书
2页 86K
描述
Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency

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中文翻译

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STR-W6700 数据手册

 浏览型号STR-W6700的Datasheet PDF文件第2页 
STR-W6700 Series  
Power IC for Quasi-Resonant Type Switching Power Supply  
with High Efficiency and Low Noise in Full Load Range  
■
■
General Descriptions  
The STR-W6700 series products are power ICs for quasi-resonant type switching power  
supplies, incorporating a power MOSFET and a controller IC, The product achieves high  
efficiency and low noise power supply systems by the quasi-resonant operation and the  
bottom-skip quasi-resonant operation.  
The STR-X6700 series products are the different package (TO-3PF) versions.  
Features  
ꢀ
Multi-Mode Control  
The operation mode switching with three steps according to load conditions achieves the  
optimal high efficiency and low noise power supply systems across the full load range.  
(The confirmation of product number is necessary because some functions are different  
in each product.)  
TO-220F-6  
・In Standby (Under Standby Load Conditions):  
－UVLO Intermittent Oscillation by lowering output voltage --- Switched by Standby Signal, or  
－Auto Burst-Oscillation --- Switched Automatically  
・Under Low to Middle Load Conditions: Bottom-Skip Quasi-Resonant Operation (Bottom-Skip QR)  
・Under Middle to Rating (or Heavy) Load Conditions: Quasi-Resonant Operation (QR)  
Current-Mode Control  
ꢀ
ꢀ
Built-in PWM Oscillator  
The PWM operates with the minimum frequency of around 22 kHz, until the quasi-resonant signal becomes  
valid, reduces the stress on components at startup and load-shorted.  
Soft-Start Function  
Step-Drive Function, reducing switching noise  
Built-in Maximum ON Time Limitation Circuit  
ꢀ
ꢀ
ꢀ
The function limits the maximum ON time of power MOSFET, during the transitions at low input voltage,  
power ON/OFF.  
ꢀ
Input Compensation at Overcurrent  
The function reduces the distortion of overcurrent operation point to AC input voltage change by adding three  
components.  
ꢀ
ꢀ
Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET  
Various Protections  
Overcurrent Protection (OCP) -------------------------------- Pulse-by-Pulse  
Overload Protection (OLP)-------------------------------------- Latch Shutdown  
Overvoltage Protection (OVP) -------------------------------- Latch Shutdown  
■
■
Applications  
Switching Power Supplies for  
Digital Consumer Equipment; LCD-TVs, PDP-TVs, CRT-TVs, etc., Home Appliances, OA Equipments,  
Industry Machines, Communication Devices, Others  
Product Lineup  
MOSFET  
VDSS  
(V)  
RDS  
MAX  
Burst-  
Oscillation Skip QR  
Bottom-  
MOSFET  
VDSS  
(V)  
RDS  
(ON)  
MAX  
Burst-  
Oscillation  
Bottom-  
Skip QR  
(
ON  
)
Product No.  
Product No.  
M
IN  
M
IN  
(Ω)  
(Ω)  
STR-W6723N  
STR-W6734  
STR-W6735  
STR-W6735N  
STR-W6753  
STR-W6754  
450  
500  
500  
500  
650  
650  
1.4  
1.0  
N
Y
Y
N
Y
Y
Y
Y
Y
Y
Y
Y
STR-W6750F  
STR-W6756  
STR-W6756N  
STR-W6765  
STR-W6765N  
650  
650  
650  
800  
800  
0.73  
0.73  
0.73  
1.8  
Y
Y
N
Y
N
N
Y
Y
Y
Y
0.57  
0.57  
1.7  
1.8  
0.96  
Y: Including the function  
N: Excluding the function  
2010/08  
12

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