AN-8027 データシートの表示（PDF） - Fairchild Semiconductor
部品番号
コンポーネント説明
一致するリスト
AN-8027 Datasheet PDF : 17 Pages
| |||
AN-8027
Design Summary
Application
ATX Power
Output Power
300W
Input Voltage
85~264VAC
Output Voltage / Output Current
12V/16.5A；5V/9A；-12V/0.8A ；3.3V/13.5A
Features
Meets 80+ specification
FAN4800A fully pin-to-pin compatible with ML4800 and FAN4800 (needs few parts modify)
Switch-charge technique of gain modulator can provide better PF and lower THD
Leading and trailing modulation technique for reduce output ripple
Protections: OVP (Over-Voltage Protection), UVP (Under-Voltage Protection), OLP (Open-Loop Protection), and
maximum current limit
F1
AC
Input
CIF1
L BOOST
DBOOST
FDA18N50
BYC10600
CBOOST
Q1
5
270uF
RCS1
0.1
D1 D2
VBOUT
R FB1
2M
10 k
100 nF
FCP11N60
Q2
FCP11N60
DR1
FR157
FYPF2006DN L 1
1
DR1
DF1
DR2
L2
1
DF2
1.8uH
L1
2
CO11
2200uF
Vo1 12V
CO12
1000uF
L22
CO21
2uH
Vo2 5V
CO22
2200uF 1000uF
RRAMP
22k
0.13nF CIC2
2M
RRMS1
53nF
CRMS1 200 K
RRMS2
RLF1
R IAC
6M
RT
6.9 k
RB 7.5k
200n
F
36 k
CRMS2 RRMS3
CLF1 CSS
CT
1nF
0.47nF
17k
4nF
RIC
CIC1
IEA
IAC
ISENSE
VRMS
SS
VEA
FBPFC
VREF
VD
D
OPFC
FBPW M
OPWM
RT/CT
RAMP
GND
ILIMIT
1nF FAN480X
CRAMP
CB
10 k
FR157
Q3 DR2
RLF2
RCS2
VD
362k
D
RVC
3.7nF
10
20nF
CVC1
12.9k
RFB2
CFB
CLF2 CDD CREF
CVC2
STPS60L45CW
SF34DG
L3
1
CO31
Vo3 -12V
220uF
L43
L4
1
L4
2
CO21
DF2
CO22
3.3V
Vo4
FR157
FR157 300
1.2 k
RD
CF RF
100
nF
4.64 k
Vo1
12V
32.4 k
ROS1
11 k 5V
ROS2 Vo2
ROS3
10
1k
3.4 k
1uF 10 k
5.45 k
Figure 25. Final Schematic of Design Example
© 2009 Fairchild Semiconductor Corporation
Rev. 1.0.0 • 8/26/09
14
www.fairchildsemi.com
Share Link: 