NCP1015 ON Semiconductor, NCP1015 Datasheet - Page 18

• Manufacturer Part Number: NCP1015
• Description: Self-supplied Monolithic Switcher For Low Standby-power Offline Smps W/out Ovp
• Manufacturer: ON Semiconductor

Typical Application Examples
evaluation a universal NCP1012 demo-board can be used)
NCP1012 which can be easily used for evaluation of
NCP1015 device delivering 6.5 W from a universal volts
the following results:
CEE7.5/2
A 6.5 W NCP1015-based Flyback converter. (For
Figure 27 shows a converter originally built with a
The converter built according to Figure 28 layouts, gave
J1
47 R
R1
1
2
2
Figure 28. The NCP1012-based PCB Layout and its Associated Component Placement
D1
1N4007
D3
1N4007
Figure 27. A NCP1012-based Flyback Converter Delivering 6.5 W
D2
1N4007
D4
1N4007
E1
10 m/400 V
E2
10 m/63 V
http://onsemi.com
NCP1015
18
R2
150 k
1
2
3
7
input range. The board uses the Dynamic Self-Supply and
a simplified zener-type feedback. This configuration was
selected for cost reasons and a more precise circuitry can be
used, e.g. based on a TL431:
•
•
V
GND
GND
GND
Efficiency at V
Efficiency at V
CC
NCP1012
IC1
C1
2n2/Y
DRAIN
GND
FB
U160
4 4
8
D5
5
in
in
= 100 Vac and P
= 230 Vac and P
1
4
PC817
2n2/Y
TR1
C2
IC2
8
7
6
5
470 m/25 V
B150
100 R
D6
E3
out
out
R3
11 V
ZD1
= 6.5 W = 75.7%
= 6.5 W = 76.5%
R4
180 R
2
1
CZM5/2
J2