ICE2QS02G 2QS02G SOP8 original

ICE2QS02G 2QS02G SOP8 original

Quasi-resonant operation

• Load dependent digital frequency reduction• Built-in digital soft-start

• Cycle-by-cycle peak current limitation with built-in
leading edge blanking time
• VCC undervoltage protection

ICE2QS02G is a second generation quasi-resonant
PWM controller optimized for off-line power supply
applications such as LCD TV, audio and printers, where
an auxiliary power supply for the IC is provided. The
digital frequency reduction with decreasing load enables
a quasi-resonant operation till very low load. As a result,
the system efficiency is significantly improved compared
to a free running quasi resonant converter implemented
with maximum switching frequency limitation only.
In addition, numerous protection functions have been
implemented in the IC to protect the system and
customize the IC for the chosen application. All of these
make the ICE2QS02G an outstanding product for real
quasi-resonant flyback converter in the market.