General Description
PWM controller of high-performance current mode is
specially designed for AC/DC transformer with high
performance and price ratio, which supplies continuous output
power of 12W within the range of wide-voltage between 85V
and 265V, the output power of peak value can be up to 18W.
The combination of optimized reasonable circuit design and
bipolar facture technology with high performance and price
ratio economizes the whole cost ultimately. The power
controller can be applied to the typical flyback circuit topology
so as to form a simple AC/DC transformer. The startup circuit
inside IC is designed as a particular current inhalation way, so
it can start up with the magnification function of the power
switch tube itself, which lessens the power consumption for
starting the resistance remarkably; when the output power is
lower, IC will reduce the working frequency automatically,
therefore, the standby power consumption becomes extremely
