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EPC3248G-14LF PDF预览

EPC3248G-14LF

更新时间: 2024-11-30 04:51:23
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描述
SMPS TRANSFORMER, LEAD FREE

EPC3248G-14LF 数据手册

 浏览型号EPC3248G-14LF的Datasheet PDF文件第2页 
Power over Ethernet (PoE/PD)  
Flyback Transformer  
E L E C T R O N I C S I N C .  
EPC3248G-X & EPC3248G-X-LF  
• Used in SMPS DC/DC Converter as a Flyback  
Transformer in PoE/Powered Devices (PD)  
• Switching Frequency : 300 KHz to 400 KHz  
• Add “-LF” after part number for Lead Free  
* 40 % Duty Cycle Typ. @ 48 V Input  
• UL 94V-0 Recognized Components  
• UL 1446 Class B Insulation System  
• Low Core Loss Material  
Electrical Specifications @ 25°C  
Part  
Chipset  
PoE  
PD  
Class  
Voltage  
Primary OCL  
(µH ± 10%)  
@ 300 KHz,  
0.1 Vrms  
Current  
Package Schematic  
Type  
Number  
Class  
Power  
(Watts)  
Usage  
(Vdc)  
(Amp.)  
Fb  
Fb  
V In  
36-57  
36-57  
V Out  
3.3  
Min.  
Max.  
Bias  
Sec 1 Bias  
EPC3248G-1  
EPC3248G-2  
EPC3248G-3  
EPC3248G-4  
EPC3248G-5  
EPC3248G-6  
EPC3248G-7  
EPC3248G-8  
EPC3248G-9  
EPC3248G-10  
EPC3248G-11  
EPC3248G-12  
EPC3248G-13  
EPC3248G-14  
EPC3248G-15  
DPA425  
DPA425  
DPA425  
DPA423  
DPA423  
DPA423  
DPA424  
DPA424  
DPA424  
DPA424/5  
DPA424/5  
DPA424/5  
DPA426  
DPA426  
DPA426  
0
0.44 12.95  
0.44 12.95  
0.44 12.95  
ER14.5  
ER14.5  
ER14.5  
ER9.5  
ER9.5  
ER9.5  
ER11  
1
1
1
2
2
2
1
1
1
1
1
1
3
3
3
Default  
Default  
Default  
13.2  
120  
120  
120  
200  
200  
200  
120  
120  
120  
120  
120  
120  
25  
3.92 .050  
2.59 .050  
1.08 .050  
1.16 .050  
0.77 .050  
0.32 .050  
1.97 .050  
1.30 .050  
0.54 .050  
3.92 .050  
2.59 .050  
1.08 .050  
12.12 .050  
0
5.0 13.33  
0
36-57 12.0 12.0  
1
0.44  
0.44  
0.44  
3.84  
3.84  
3.84  
3.84  
3.84  
3.84  
6.49  
6.49  
6.49  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Optional  
Reserved  
Reserved  
Reserved  
36-57  
36-57  
3.3  
13.2  
1
5.0 13.33  
1
36-57 12.0 12.0  
2
36-57  
36-57  
3.3  
5.0  
13.2  
13.0  
2
ER11  
ER11  
2
36-57 12.0 12.0  
3
6.49 12.95  
6.49 12.95  
6.49 12.95  
Reserved  
Reserved  
Reserved  
ER14.5  
ER14.5  
ER14.5  
EFD20  
EFD20  
EFD20  
36-57  
36-57  
3.3  
5.0  
13.2  
13.2  
3
3
36-57 12.0 12.0  
4(PoEP)  
4(PoEP)  
4(PoEP)  
36-57  
36-57  
3.3  
5.0  
13.2  
13.2  
25  
25  
8.0  
.050  
36-57 12.0 12.0  
3.33 .050  
Isolation : Pri., Bias to Sec. ; 1500 Vrms  
• Isolation : Pri. to Bias ; 500 Vrms •  
Note : Class 4 is currently reserved for Power over Ethernet Plus (PoEP) and should not be used at this time.  
Notes :  
EPC3248-X  
EPC3248-X-LF  
1. Assembly Process (Solder Composition)  
SnPb  
Pb-Free  
2. Peak Solder Rating  
225°C  
1
260°C  
1
(per IPC/JEDEC-J-STD-020C)  
3. Moisture Sensitive Levels (MSL)  
(per IPC/JEDEC-J-STD-020C)  
(Unlimited, £30°C/60%RH) (Unlimited, £30°C/60%RH)  
4. Weight  
TBD grams  
TBD grams  
5. Packaging Information  
(Tube)  
TBD pcs / tube  
TBD pcs / tube  
Schematic 1  
Schematic 2  
Schematic 3  
(Reserved for Class 4 PoEP)  
1
1
12  
11  
1
10  
8
V In  
V In (Pins 1-3)  
[36-57 Vdc]  
V In (Pins 1-3)  
[36-57 Vdc]  
2
3
4
5
2
3
5
6
[36-57 Vdc]  
10  
Sec. 1  
9
9
Sec. 1  
7
7
Sec. 1  
6
2
3
Fb/Bias  
[13.2 V/0.05 A]  
Fb/Bias  
[13.2 V/0.05 A]  
Fb/Bias  
[13.2 V/0.05 A]  
8
7
4
6
5
Note :  
Note :  
Note :  
1. Input Pins : Pins 1 & 3  
1. Input Pins : Pins 1 & 2  
1. Input Pins : Pins 1 & 3  
2. Connect Pins 9,10 and 6,7 in  
user board for higher power  
2. Connect Pins 8,7 and 5,6 in  
user board for higher power  
2. Connect Pins 12,11,10 and 9,8,7  
in user board for higher power  
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25  
Product performance is limited to specified parameters. Data is subject to change without prior notice.  
CSC3248G-X & -LFa Rev. 3 9/26/05 FT  
PCA ELECTRONICS, INC.  
16799 SCHOENBORN ST.  
NORTH HILLS, CA 91343  
TEL: (818) 892-0761  
FAX: (818) 894-5791  
http://www.pca.com  

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