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STR-X6737M bảng dữ liệu(PDF) 1 Page - Sanken electric

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Giải thích chi tiết về linh kiện  Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency
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STR-X6737M bảng dữ liệu(HTML) 1 Page - Sanken electric

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TO-3PF-7
STR-X6700
Series
Power IC for Quasi-Resonant Type Switching Power Supply
with High Efficiency and Low Noise in Full Load Range
General Descriptions
The STR-X6700 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-W6700 series products are the different package (TO-220F) 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.)
・In Standby (Under Standby Load Conditions):
-UVLO Intermittent Oscillation by low 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
Product No.
MOSFET
VDSS MIN
(V)
RDS(ON)
MAX
( )
Burst-
Oscillation
Bottom-
Skip QR
Product No.
MOSFET
VDSS MIN
(V)
RDS(ON)
MAX
( )
Burst-
Oscillation
Bottom-
Skip QR
STR-X6729
450
0.189
N
Y
STR-X6750F
650
0.62
Y
N
STR-X6737
500
0.36
Y
Y
STR-X6759N
650
0.385
N
Y
STR-X6737M
500
0.36
N
Y
STR-X6759F
650
0.385
Y
N
STR-X6756
650
0.73
Y
Y
STR-X6759B
650
0.385
N
N
STR-X6757
650
0.62
Y
Y
STR-X6768N
800
1.0
N
Y
STR-X6757N
650
0.62
N
Y
STR-X6769
800
0.66
Y
Y
STR-X6750B
650
0.62
N
Y
STR-X6769B
800
0.66
N
N
Y: Including the function
N: Excluding the function


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