NCP1012GEVB ON Semiconductor, NCP1012GEVB Datasheet - Page 20

• 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

A 7.0 W NCP1013- -based Flyback Converter
Featuring Low Standby Power
NCP1013- -65 kHz operating in a 7.0 W converter up to
70C of ambient temperature. We can increase the output
board implementing the diagram in Figure 30 and the
following results were achieved, with either the auxiliary
winding in place or through the Dynamic Self- -Supply:
Vin = 230 Vac, auxiliary winding, Pout = 0, Pin = 60 mW
Vin = 100 Vac, auxiliary winding, Pout = 0, Pin = 42 mW
Vin = 230 Vac, Dynamic Self- -Supply, Pout = 0,
Pin = 300 mW
Vin = 100 Vac, Dynamic Self- -Supply, Pout = 0,
Pin = 130 mW
Pout = 7.0 W, η = 81% @ 230 Vac, with auxiliary winding
Pout = 7.0 W, η = 81.3 @ 100 Vac, with auxiliary winding
Vbulk
47 mF/
450 V
Figure 30 depicts another typical application showing a
Measurements have been taken from a demonstration
C2
+
+ 100 mF/10 V
R2
3.3 k
C3
Figure 30. A Typical Converter Delivering 7.0 W from a Universal Mains
+ C10
33 mF/25 V
1N4148
D4
C9
1 nF
1
2
3
4
R4 22
NCP1013P06
V
NC
GND
FB
CC
Aux
T1
GND
GND
D
MUR160
8
7
5
http://onsemi.com
C8
10 nF
400 V
D3
20
R7
100 k/
1 W
power since an auxiliary winding is used, the DSS is
disabled, and thus offering more room for the MOSFET. In
this application, the feedback is made via a TLV431 whose
low bias current (100 mA min) helps to lower the no- -load
standby power.
the following transformers are available from Coilcraft:
A9619- -C, Lp = 3.0 mH, Np:Ns = 1:0.1, 7.0 W
application on universal mains, including auxiliary winding,
NCP1013- -65kHz.
A0032- -A, Lp = 6.0 mH, Np:Ns = 1:0.055, 10 W
application on European mains, DSS operation only,
NCP1013- -65 kHz.
Coilcraft
1102 Silver Lake Road
CARY IL 60013
Email: [e-mail]
Tel.: 847- -639- -6400
Fax.: 847- -639- -1469
IC1
SFH6156--2
For a quick evaluation of Figure 30 application example,
Y1 Type
2.2 nF
C5
T1
D2
MBRS360T3
IC2
TLV431
R3
1 k
470 mF/16 V
C6 C8
100 nF
+
C4
+
22 mH
L2
R5
39 k
R6
4.3 k
+
100 mF/16 V
C7
12 V @
0.6 A
GND