E L E C T R O N I C S I N C .
Push-Pull Low Power Transformer
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Designed for use with Maxim Max253/Max3535E
Add "-LF" after part number for Lead-Free
Used in SMPS Push-Pull Topology
UL 94V-0 Recognized Components
UL 1446 Class B Insulation System
Switching Frequency : 350 KHz
8 Pin SOIC PCMCIA Package
700 Vdc Minimum Isolation
Very Low Core Loss
EPC3115S-X & EPC3115S-X-LF
Product performance is limited to specified parameters. Data is subject to change without prior notice.
Electrical Parameters @ 25 C
Unless Otherwise Specified Dimensions are in Inches /mm .010 /.25
CSC3115S-X & -LF Rev. 5 8/25/05 FT
Schematic
1
2
3
4
5
6
7
8
Pri.
Sec.
Voltage
(V)
PCA
Part
Number
EPC3115S-1
EPC3115S-2
*EPC3115S-3
*EPC3115S-4
EPC3115S-5
EPC3115S-6
EPC3115S-7
EPC3115S-8
Primary
OCL
(H Typ.)
394
988
988
988
988
988
394
988
988
988
@ 100 KHz, 0.1 Vrms
75
75
75
75
80
80
75
75
80
75
Duty Cycle
(%)
3.3
5
5
5
5
5
3.3
5
5
5
V in
5
5
10
10
12
24
5
5
12
15
V out
Output Center Tap
Output Center Tap
Voltage Doubler
Output Center Tap
Output Center Tap
Voltage Doubler
Voltage Doubler
Voltage Doubler
Voltage Doubler
Voltage Doubler
Rectification
(Half or Full Wave)
Connections
Turns
Ratio
(Pri. to Sec.)
1:1:2:2
1:1:1.3:1.3
1:1:1.3:1.3
1:1:2.67:2.67
1:1:3:3
1:1:3:3
1:1:1:1
1:1:.67:.67
1:1:1.5:1.5
1:1:2:2
Pri. :Sec.
7.1
11
11
11
11
11
7.1
11
11
11
ET
(V-Sec.)
@ 350 KHz
Connections : Output Center Tap as Common/Return Operating Temperature : -40C to +85C
Package
Pin 1
I.D.
.150
(3.81)
.088 Max. (2.24)
.270
(6.86)
.050
(1.27)
.025
(.635)
.290
(7.37)
.018/.022
(.457/.559)
.090
(2.29)
.050
(1.27)
.030
(.762)
.420
(10.67)
.365
(9.27)
Marking :
PCA
EPC3115S-X(-LF)
Date Code
Pad
Layout
.070
(1.78)
0-8
.008/.012
(.203/.304)
.003/.010
(.076/.254)
*.098 Max. (2.49) for EPC3115S-3/-4
{
{
Application
Notes :
1. Assembly Process
(Solder Composition)
2. Peak Solder Rating
(per IPC/JEDEC-J-STD-020C)
4. Weight
5. Packaging Information
(Tube)
EPC3115S-X
SnPb
225C
TBD grams
TBD pcs / tube
3. Moisture Sensitive Levels (MSL)
(per IPC/JEDEC-J-STD-020C)
1
(Unlimited,
30C/60%RH)
EPC3115S-X-LF
Pb-Free
260C
TBD grams
TBD pcs / tube
1
(Unlimited,
30C/60%RH)
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