◆ General description
The STR- X6756 is power IC for quasi-resonant type switching power supply, 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.

◆ Features
● Multi operation mode
   The operation mode switching according to load
   conditions achieves the optimal high efficiency and low
   noise power supply systems across the full load range.
● Current mode control
● Built-in PWM oscillator
   The PWM operates with the minimum frequency of
   around 22kHz, until the quasi-resonant signal becomes
   valid, reduces the stress on components at startup and
   load-shorted.
● Built-in soft start function
● Step-drive function, reducing switching noise
● Input compensation at overcurrent
   The function reduces the distortion of overcurrent
   operation point to AC input voltage change by adding
   three components.
● Avalanche energy guaranteed by two chips structure
   (Simplification of surge absorbing circuit)
● Protection functions
   Overcurrent protection (OCP); Pulse-by-pulse
   Overload protection (OLP); latched shutdown
   Overvoltage protection (OVP); latched shutdown

◆ Application
Switching power supplies for
● LCD-TVs, PDP-TVs, CRT-TVs and Digital consumer
   equipment
● Home appliances
● OA equipments
● Industry machines
● Communication devices