Flyback Power Transformer
ELECTRONICS INC.
EPC3169-X
• Used in SMPS Flyback Topology
• Designed for use with National Semiconductor Chip LM2587/88
• UL94V-0 Recognized Components
• UL1446 Class B Insulation System
• Very Low Core Loss
Electrical Parameters @ 25° C
PCA
Part
Number
Chipset
Xfmr
Code
V in
Pin 1-2
EPC3169-3
EPC3169-4
T3
LM2587/88
18-36
T4
LM2587/88
18-36
• Isolation :
750 Vrms
•
Voltage
(Vdc)
V out
1
V out
2
V out
3
Primary
OCL
(µH ± 10%)
@ 10 KHz,
0.1 Vrms
Current
(Amp. Max.)
Sec.
1
Sec.
2
Sec.
3
A
B
Turns
Ratio
Schematic
-12
1.0
1:.8:.8
N
85
1.0-
12
N
12
2.5
1:.35:.8:.8
0.5
85
0.5
5
-12
200 KHz Switching Frequency :
“N” means Not Required/No Connections
•
Schematic A
10
Vout 1
1
Vin
2
9
7
Vout 2
6
Vin
2
1
Schematic B
10
Vout 1
9
7
Vout 2
6
4
Vout 3
5
Package
1.040 Max.
(26.30)
Pin # 1
PCA
EPC3169-X
Date Code
.831 Max.
(21.10)
.823
Max.
(20.90)
.159
Min.
(4.05)
1
.150
(3.80)
5
.012
(.300)
.026
(.650)
.641
(15.60)
.110
Min.
(2.80)
10
.201
(5.10)
7 Plcs
6
.803
(20.40)
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.
CSC3169-X
Rev. 1
2/25/04 FT
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
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