NCP1012GEVB ON Semiconductor, NCP1012GEVB Datasheet - Page 19

• Manufacturer Part Number: NCP1012GEVB
• Description: EVAL BOARD FOR NCP1012G
• Manufacturer: ON Semiconductor

Specifications of NCP1012GEVB

• Design Resources: NCP1012 Eval Brd BOM NCP1012GEVB Gerber Files NCP1012 Eval Brd Schematic
• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Voltage - Output: 12V
• Voltage - Input: 230VAC
• Regulator Topology: Flyback
• Frequency - Switching: 100kHz
• Board Type: Fully Populated
• Utilized Ic / Part: NCP1012
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: NCP1012G
• Other names: NCP1012GEVBOS

Typical Application Examples
A 6.5 W NCP1012- -Based Flyback Converter
delivering 6.5 W from a universal input. The board uses the
Dynamic Self- -Supply and a simplified Zener- -type
the following results:


CEE7.5/2
Figure 28 shows a converter built with a NCP1012
The converter built according to Figure 29 layouts, gave
Efficiency at Vin = 100 Vac and Pout = 6.5 W = 75.7%
Efficiency at Vin = 230 Vac and Pout = 6.5 W = 76.5%
J1
47 R
R1
1
2
2
Figure 29. The NCP1012- -Based PCB Layout . . . and its Associated Component Placement
D1
1N4007
D3
1N4007
Figure 28. An NCP1012- -Based Flyback Converter Delivering 6.5 W
D2
1N4007
D4
1N4007
E1
10 m/400 V
E2
10 m/16 V
http://onsemi.com
19
R2
150 k
1
2
3
7
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
CC
NCP1012
IC1
C1
2.2 nF
GND
HV
FB
U160
4 4
8
5
D5
1
4
PC817
2n2/Y
TR1
C2
IC2
8
7
6
5
470 m/25 V
B150
100 R
D6
E3
R3
11 V
ZD1
R4
180 R
2
1
CZM5/2
J2