NCP1200 ON Semiconductor, NCP1200 Datasheet - Page 12

• Manufacturer Part Number: NCP1200
• Description: Current Mode Controller Fixed Frequency Operation
• Manufacturer: ON Semiconductor

T1: Lp = 2.9 mH, Np:Ns = 1:0.08, leakage = 80 mH, E16 core, NCP1200P40
application, but can also develop devices based on your particular specification:
Eldor Corporation Headquarter
Via Plinio 10,
22030 Orsenigo
(Como) Italia
Tel.: [phone]
Fax : [phone]
Email: [e-mail]
www.eldor.it
ref. 1: 2262.0058C: 3.5 W version
(Lp = 2.9 mH, Lleak = 80 mH, E16)
ref. 2: 2262.0059A: 5 W version
(Lp = 1.6 mH, Lleak = 45 mH, E16)
Atelier Special de Bobinage
125 cours Jean Jaures
38130 ECHIROLLES FRANCE
Tel.: [phone]
Fax: [phone]
Email: [e-mail]
ref. 1: NCP1200-10 W-UM: 10 W for USB
(Lp = 1.8 mH, 60 kHz, 1:0.1, RM8 pot core)
Universal
To help designers during the design stage, several manufacturers propose ready-to-use transformers for the above
Input
R9
10
Figure 24. A typical AC-DC wall adapter showing the reduced part count due to the NCP1200
4.7 mF
400 V
C3
+
330 mH
330 mH
4.7 mF
R7
400 V
L5
L6
C2
+
1
2
3
4
Adj
FB
CS
GND
NCP1200
V
Drv
HV
NC
CC
10 mF
http://onsemi.com
C9
8
7
6
5
NCP1200
+
M1
MTD1N60E
12
Clamping
Network
R
Clamp
D
clamp
Coilcraft
1102 Silver Lake Road
Cary, Illinois 60013 USA
Tel: [phone]
Fax: [phone]
Email: [e-mail]
http://www.coilcraft.com
ref. 1: Y8844-A: 3.5 W version
(Lp = 2.9 mH, Lleak = 65 mH, E16)
ref. 2: Y8848-A: 10 W version
(Lp = 1.8 mH, Lleak = 45 mH, 1:01, E core)
clamp
T1
R6
2.8
Snubber
1N5819
R
SFH615A-2
D3
C
Snubber
Snubber
IC1
+
C5
470 mF/
10 V
2.2 mH
L4
R2
220
+
D6
5 V1
C10
4.7 mF/
10 V
6.5 V @ 600 mA
Networks
Optional