NCP1203GEVB ON Semiconductor, NCP1203GEVB Datasheet - Page 9

• Manufacturer Part Number: NCP1203GEVB
• Description: EVAL BOARD FOR NCP1203G
• Manufacturer: ON Semiconductor

Specifications of NCP1203GEVB

• Design Resources: NCP1203GEVB BOM NCP1203GEVB Gerber Files NCP1203 EVB Schematic
• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Voltage - Output: 19V
• Current - Output: 4A
• Voltage - Input: 85 ~ 230VAC
• Regulator Topology: Flyback
• Frequency - Switching: 60kHz
• Board Type: Fully Populated
• Utilized Ic / Part: NPC1200
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: NCP1203G
• Other names: NCP1203GEVBOS

-24.0
-48.0
340
48.0
24.0
0
0
1
+
Vin
350
Figure 11. Simulated Bode Plot of the
2.93
AC = 1
1.0 kF
VStim
Vin
CoL
10
Current Mode Flyback
Figure 10. The Simulation Schematic for Our 70 W Current-Mode Power Supply
IN
CTRL
0
11
14
+
1.0 kH
Vout
NCP1200
averaged
LoL
1.0 nF
1 k
C5
Gain
FB GND
12
15
2.93
SFH610A
OUT
10 k
X1
NCP1200_Av
FS = 61 k
L = 700
MC = 39605
RI = 0.33
TL431
Phase
X3
X5
16.1
15.4
100 k
105
out1
5
10
R15
1.0 k
13
160
80.0
0
-80.0
-160
http://onsemi.com
RATIO = 0.166
R5
4.7 k
2
AND8076/D
100 nF
XFMR
C1
X1x
Mag (dB)
-12.0
-24.0
-36.0
-48.0
9
2.50
4
48.0
36.0
24.0
12.0
17.5
0
out2
10
Rupp
39 k
Rlow
6.8 k
D1
MBR20100CT
Figure 12. Measured Open-Loop Gain
16.9
5.8 mF
Resr1
30 m
with a Network Analyzer
100
16.9
C1
out1
7
10 H
1 k
L1
Phase
Mag
16.9
10 k
10 m
Rs
100 F
300 m
R17
16.8
16.8
C2
100 k
out2
9
Phase (deg)
160.0
120.0
80.0
40.0
0
-40.0
-80.0
-120.0
-160.0
Rload
Iout
16.8
4.2