Product Summary

Positive input supply voltage. This pin is connected to an external capacitor for energy storage.
The start?up circuit sources current out of this pin to initially charge the capacitor. When the
voltage reaches the upper threshold limit of the undervoltage lockout circuit, the start?up circuit
will turn off, and the power supply will begin operation. Power is then supplied to the chip via
this pin, by virtue of the auxiliary winding.

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
NCP1002P
NCP1002P

ON Semiconductor

Other Power Management 700V 500mA Switching

Data Sheet

Negotiable 
NCP1002PG
NCP1002PG

ON Semiconductor

Other Power Management 700V 500mA Switching w/OVP and Zero Duty

Data Sheet

Negotiable