NCP1280 controller equivalent, active clamp voltage mode pwm controller.
such as line UV/OV protection, soft−start, single resistor programmable (high) frequency oscillator, line voltage feedforward, dual mode overcurrent protection and maximu.
The NCP1280 provides a highly integrated solution for off−line power supplies requiring high−efficiency and low parts c.
Pin Name 1 Vin
2 NC 3 UV/OV 4 FF
5 CS 6 CSKIP 7 RT 8 DCMAX
9 SS 10 VEA
11 VREF 12 tD 13 OUT2 14 GND 15 OUT1 16 VAUX
NCP1280
Application Information This pin is connected to the input voltage of the system. The voltage can be a rectified, filtered li.
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