Diodes AP3988/89/90 User Manual
Page 2
AP3988/89/90
Document number: DS36722 Rev. 3 - 2
2 of 13
www.diodes.com
March 2014
© Diodes Incorporated
AP3988/89/90
A Product Line of
Diodes Incorporated
N
E
W
P
R
O
D
U
C
T
Typical Applications Circuit
+
J1
AC 90-264V
D1 to D4
C2
Rf1
+
C1
D6
L1
T1
FB
C
VCC
CS
+
C3
U1
CPC
C8
R5
C11
Np
Ns
Nfb
D5
C5
R6
Vo+
Vo-
C10
GND
D12
+
C12
R11
R12
C13
+
R10
R3
R8
R9
R7
L2
For AP3990 (12V/1A)
Item
Function
QTY
Item
Function
QTY
C1,C2
10µF/400V, electrolytic
2
U1
AP3990, PDIP-7
1
C3
4.7µF/50V, electrolytic
1
Rf1
2A/250V, fuse
1
C5
1nF/250V, ceramic
1
R3
3.3M
/0.25W
1
C8
0.1µF, 0805
1
R5
3.9
, 0805
1
C10
1nF/250V
AC
, Y1 capacitor
1
R6
150k
, 0.25W
1
C11
1nF, 0805
1
R7
0.62
, 1206
1
C12, C13
470µF/16V
2
R8
31k
, 0805
1
D1 to D6
1N4007, rectifier diode
6
R9
13k
, 0805
1
D12
MBR3100, Schottky diode
1
R10
360
, 0805
1
L1
15mH, Common inductor, EE10
1
R11
27
, 0805
1
L2
10µH/1A, inductor, 0805
1
R12
1.2k
, 0805
1
–
–
–
T1
EE20 core, PC40, transformer
1