STR-Y6700 Datasheet, PDF (1/2 Pages) Sanken electric – Power IC for Quasi-Resonant Mode Switching Power Supplies with Low Standby Power

STR-Y6700 Series
Power IC for Quasi-Resonant Mode Switching Power Supplies
with Low Standby Power, High Efficiency and Low Noise in Full Load Range
■ General Descriptions
The STR-Y6700 series products are power ICs for quasi-resonant (QR) switching mode power
supplies, incorporating a power MOSFET and a controller IC.
The product achieves high efficiency and low noise systems, by automatic switching of
Auto-Standby operation under light load conditions, QR operation and Bottom-Skip QR
operation in normal operation.
The product easily achieves high cost-performance power supply systems with few external
components.
■ Features
TO-220F (FMY207)
Multi-Mode Control
The automatic operation mode switching with three steps according to load conditions achieves the optimal
power supply systems with high efficiency and low noise across full load range.
・In Standby------------------------------------------------------ Auto Standby Operation ( Burst-Oscillation)
・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 Startup Circuit, enabling Low Power Consumption
Auto-Standby Function with burst-oscillation, enabling low standby power
Input Power at no load : P_IN < 30mW (100VAC), P_IN < 50mW (240VAC)
Soft-ON Function, preventing the audible noise from transformer at standby (Burst-Oscillation)
Built-in Soft-Start Function
Built-in Bias Assist Function
Overcurrent Protection (OCP) with AC Input Compensation Function
Built-in Leading Edge Blanking Function
Built-in High-Voltage Power MOSFET with Avalanche Energy Guaranteed
Protection Functions
・Overcurrent Protection (OCP) ---------------Pulse-by-Pulse
・Overload Protection (OLP)-------------------Latch Shutdown
・Overvoltage Protection (OVP) --------------Latch Shutdown
・Thermal Shutdown Protection (TSD) ------Latch Shutdown
■ Applications
Switching Power Supplies for
Digital Consumer Equipments: LCD-TVs, BD / DVD Players / Recorders, etc.,
Home Appliance (White Goods), OA Equipments, Industry Machines, Communication Equipments, Others
■ Product Lineup
Product No.
STR-Y6735
STR-Y6753
STR-Y6754
MOSFET
V_DSS (MIN) (V)
500
650
R_DS(ON) (MAX)
(Ω)
0.8
1.9
1.4
Product No.
STR-Y6763
STR-Y6765
STR-Y6766
MOSFET
V_DSS (MIN) (V)
800
R_DS(ON) (MAX)
(Ω)
3.5
2.2
1.7
2010/08