EPC3129-X - PCA Electronics, Inc.

Flyback Power Transformer
ELECTRONICS INC.
EPC3129-X
• Used in SMPS Flyback Topology
• Designed for use with Power Integration Chip
• Reinforced Insulation (Triple Insulated Wire)
• UL 94V-0 Recognized Components
• UL 1446 Class F Insulation System
• Very Low Core Loss
Electrical Parameters @ 25° C
PCA
Part
Number
Chipset
Voltage
(Vdc)
Primary
OCL
(µH ± 10%)
@ 10 KHz,
V out
V out
V out
Sec.
V out
0.1 Vrms
4
1
2
1
3
N
2.5
120-375
12
876
15
--3.3
0.9
120-375
5
1000
15
30
• Switching Frequency : 132 KHz • Isolation : 4500 Vrms •
V in
EPC3129-1
EPC3129-2
TOP244Y
TOP243P
Schematic
Current
(Amp.)
Sec.
2
N
1.5
Sec.
3
.05
.05
Sec.
4
--.03
A
B
Dielectric Rating
(Vrms)
1 sec. 4500 or 60 sec. 3750
1 sec. 1500
Between Pri. Wdg & Bias
1 sec. 4500 or 60 sec. 3750
Between Sec. Wdg’s to Core
Pri. to all Sec. Wdg’s & Core
• Note : “N” means Not Required/No Connections •
Schematic A
1
Schematic B
10
V in Pri.
Sec. 1
3
9
4
7
5
6
1
10
3
9
4
7
5
6
Sec. 4
Pri.
Sec. 1
Sec. 3
(Fb/Bias)
Sec. 3
(Fb/Bias)
Sec. 2
Sec. 2
* Shield is optional
Package
1.130
(28.80)
.138
(3.50)
PCA
EPC3129-X
D.C.
1.130
(28.80)
.846
Max.
(21.50)
.787
(20.00)
.787
Typ.
(20.00)
.028 Sq.
(.700)
Suggested
Layout
.051
(1.30)
.197
(5.00)
.197
(5.00)
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSC3129-X
Rev. 1
4/9/03 FT
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com