NCP1015 Self-Supplied Monolithic Switcher for Low Standby- Power Offline SMPS The NCP1015 integrates a fixed frequency current mode controller and a 700 V voltage MOSFET. Housed in a PDIP7 or NCP1015 Indicative Maximum Output Power from NCP1015 R I 230 Vac 100 250 Vac DS(on) p 11 450 mA DSS 14 W 6.0 W 11 450 mA Auxiliary Winding 19 W 8.0 W 1. Informative values only, with: T = 50C, circuit mounted on minimum copper area as recommended. amb V out + + 100250 Vac 18 27 3 45 + GND Figure 1. Typical Application Example PIN FUNCTION DESCRIPTION Pin No. SOT223 PDIP7 Pin Name Function Description 1 1 V Powers the Internal Circuitry This pin is connected to an external capacitor of typically CC 10 F. The natural ripple superimposed on the V CC participates to the frequency jittering. For improved standby performance, an auxiliary V can be connected CC to Pin 1. The V also includes an active shunt which CC serves as an opto failsafe protection. 2 NC 3 GND The IC Ground 2 4 FB Feedback Signal Input By connecting an optocoupler to this pin, the peak current setpoint is adjusted accordingly to the output power demand. 3 5 DRAIN Drain Connection The internal drain MOSFET connection. 7 GND The IC Ground 4 8 GND The IC Ground