NCP1255 Datasheet - ON Semiconductor

NCP1255 Current-Mode PWM Controller

NCP1255 Current-Mode PWM Controller for Off-line Power Supplies featuring Peak Power Excursion The NCP1255 is a highly integrated PWM controller capable of delivering a rugged and high performance offline power supply in a SOIC 8 package. With a supply range up to 35 V, the controller hosts a jittered 65 kHz switching circuitry operated in peak current mode control. When the power on the secondary side starts to decrease, the controller automatically folds back its switching fre.

NCP1255 Features

* several key protective features: a brown

* out, a non

* dissipative Over Power Protection for a constant maximum output current regardless of the input voltage, two latched over voltage protection inputs

* either through a dedicated pin or via the Vcc input

* and finally,

NCP1255 Datasheet (363.01 KB)