參數(shù)資料
型號(hào): ML4803IS-1
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: 8-Pin PFC and PWM Controller Combo
中文描述: 1 A POWER FACTOR CONTROLLER WITH POST REGULATOR, 67 kHz SWITCHING FREQ-MAX, PDSO8
封裝: SOIC-8
文件頁(yè)數(shù): 11/13頁(yè)
文件大小: 195K
代理商: ML4803IS-1
ML4803
11
February 1999
Figure 12. Typical Application Circuit. Universal Input 240W 12V DC Output
4A
LINE
NEUTRAL
F1 5A 250V
J1-1
J1-2
C19
4.7nF
250VAC
C20
4.7nF
250VAC
R24
470k
0.5W
TH1
10
5A
R3 0.15
3W
102T
L2
Q5
Q2
Q4
Q1
1000μH
R1
36
CR1 8A, 600V
CR7
CR3
CR18 51V
C26
0.01μF
500V
C18 4.7nF
CR2
30A, 60V
R36 220
L1 25μH
C29 0.01μF
CR2
30A
60V
C2
2200μF
C3
1μF
C1
220μF
450V
R2
L3
36
CR5
16V
0.5W
R22
10k
R8 36
R23
10k
R38 22
R30 200
C7
0.1μF
R27
20k
3W
R26
20k
3W
R10
0.75
3W
T2
T1
C23
0.01μF
CR4
CR11
CR10
CR12
CR9
R5 36
R11 150
Q3
R4 1k
ML4803
1
2
3
4
8
7
6
5
C15
0.015μF
C6
1μF
C5
8.2nF
C28
1μF
C9
1μF
C10
2.2nF
U2
4
5
1
2
2
3
1
R17 3.3k
R6 1.2k
C12 0.1μF
C25
0.01μF
500V
12V
J2-1
12VRET
J2-2
R18 1k
U3
CR8
L2
4T
CR15
1
10
3
4
R32 100
C27
0.01μF
R15
9.09k
7.0V
R21
10k
C14
4.7μF
C17
0.1μF
R16
2.37k
R13
5.62M
R7
10
CR16
IN4148
R12
5.62M
C4
0.47μF
250VAC
R14
150
2W
R37
330
R9
1.5k
C13 1nF
R31
10
C11
1000μF
C21
1μF
C22
1μF
R29 20k
R28
20k
R19
10k
PFC
GND
ISENSE
VEAO
PWM
VCC
ILIMIT
VDC
R20
510
R25
390k
C8
0.15μF
C16
0.01μF
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