EPC3145 Datasheet, PDF (1/1 Pages) PCA ELECTRONICS INC. – Flyback Transformer

ELECTRONICS INC.
Flyback Transformer
EPC3145
• Used in SPMS Flyback Topolgy
• Gapped Transformer
• Low Core Loss Material
• UL 94V-0 Recognized Components
• UL 1446 Class B Insulation System
• Works up to 200 KHz Switching Frequency
Primary Specification
Inductance
(µH ± 10%)
DCR
(Ω Typ.)
Leakage Inductance
(µH Typ.)
Turns Ratio
Isolation
(Vrms)
10 KHz,
0.1 Vrms
302
Pins 1-2
1.17 .030 .008 .122
Pins Pins ^Pins Pins
1-2 8-7 ^6-5 3-4
100 KHz
0.1 Vrms
18
Pins 1-2 with
3,4,5,6,7,8 Shorted
1 Minute
1 Minute
7.916
Pins 1-2 to
Pins 8-7
19.0
Pins 1-2 to
Pins 6-5
13.57
Pins 1-2 to
Pins 3-4
1500
Pri. to Sec 1
Sec. 2, Sec 3
500
Pri., Sec 1, Sec 3
Sec. 2 to Core
Notes :
1. Pri Ipk = 1.4 Amp
2. Pri Irms = 0.58 Amp
Schematic
Copper Shield
1
8
Pri.
Sec. =1 Irms = 3.29 Amp
2
7
(12 V)
3
Sec =3 Irms = 0.3 Amp
(7 V)
4
6
Sec. =2 Irms = 6.11 Amp
5
(5 V)
White Dot
Pin # 1
Package
.787 Max.
(20.00)
PCA
EPC3145
D.C
.689 Max.
(17.50)
Side
.150
(3.80)
1
.669 Max.
(17.00)
8
.201
(5.10)
.026
(.650)
4
.150 Min.
(3.80)
.514
(13.05)
Bottom
5
.118 Max.
(3.00)
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
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.
CSC3145 Rev. - 5/14/03
TEL: [phone]
FAX: [phone]
http://www.pca.com