MC44608_06 Datasheet, PDF (13/15 Pages) ON Semiconductor – Few External Components Reliable and Flexible SMPS Controller

MC44608
The Figure 19 represents a complete power supply using the secondary reconfiguration.
The specification is as follows: Input source:
85 Vac to 265 Vac
3 Outputs
112 V/0.45 A
16 V/1.5 A
8.0 V/1.0 A
Output power
80 W
Standby mode
@ Pout = 300 mW, 1.3 W
FI
WIDE _C1
MAINS _{100 nF}
R F6
47288900
RFI
FILTER
C20
2N2FY
R16
C11
220 pF
500 V
D5
1N4007
Isense
4.7 k W
4 kV
C3
1 nF
D1, D2, D3, D4
1N5404
D18
14
MR856
C12 +
47 m F
250 V
C13
100 nF
C4
1 nF
R5
100 k W
+ ^C5
220 mF
400 V
D6
MR856
R1
22 kW
5W
C6
47 nF
630 V
61
12
R7
C17
47 k W ^{120 pF}
D12
1N4934
D9
11 ^MR852
DZ1
MCR22−6
1
8
2
7
VCC
3
6
R2
10 W
4
5
C8
100 nF
R4
3.9 k W
D7
1N4148
+
C7
22 m F
16 V
MTP6N60E
7
C9
470 pF
630 V
D14
MR856
R17
2.2 kW
5W
R3
0.27 W
2 ¹⁰
+ C14
1000 m F
35 V
C16
120 pF _R19
18 kW
D10
8 ^MR852
C15 ⁺
1000 m F
16 V
9
D13
1N4148
Post
Reg.
112 V/0.45 A
1
2 ^J3
3
16 V/1.5 A
1
2 ^J4
3
8 V/1 A
mP
R11
4.7 kW
OPT1
DZ3
10 V
R21
47 W
DZ2
TL431CLP
C19
33 nF
R9
100 kW
R12
1 kW
R10
10 kW
C18
100 nF
R8
2.4 kW
ON
OFF
ON = Normal Mode
OFF = Pulsed Mode
Figure 18. Typical Application
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