Flyback Transformer - 4, 7 & 13 Watts
Part
Number
PoE4W3x3.3-R
PoE4W3x5.0-R
PoE4W2x12-R
PoE7W3x3.3-R
PoE7W3x5.0-R
PoE7W2x12-R
PoE13W3x3.3-R
PoE13W3x5.0-R
PoE13W2x12-R
Induct-
ance
Watts (
μ
H)
4
4
4
7
7
7
13
13
13
200
200
200
100
100
100
100
100
100
DCR
DCR
Leakage
Primary Secondary Inductance
(
Ω
)
(
Ω
)
e (
μ
H) typ.
0.5
0.5
0.5
0.275
0.275
0.275
0.25
0.25
0.25
0.07
0.27
0.74
0.03
0.095
0.25
0.032
0.075
0.28
2.75
2.5
1.4
1
1
1
1.5
1.2
1
Primary
Current
Pk (Adc)
0.65
0.65
0.65
1
1
1
1.6
1.6
1.7
Primary
Current
Pk (Adc)
1.7
Turn Ratios
Dimen-
Schm 1: Pins pri(1-3):fb(5-6):v1(12-7): v2(11-8): v3(10-9) Sche- sion
Schm 2: Pins pri(1-3):fb(5-6): v1(12-10):v2(11-9)
matic Size
1 : 0.52 : 0.16 : 0.16 : 0.16 +/-1%
1 : 0.52 : 0.26 : 0.26 : 0.26 +/-1%
1 : 0.52 : 0.60 : 0.60 +/-1%
1 : 0.529 : 0.176 : 0.176 : 0.176 +/-1%
1 : 0.529 : 0.265 : 0.265 : 0.265 +/-1%
1 : 0.529 : 0.588 : 0.588 +/-1%
1 : 0.529 : 0.176 : 0.176 : 0.176 +/-3%
1 : 0.529 : 0.265 : 0.265 : 0.265 +/-3%
1 : 0.529 : 0.647 : 0.647 +/-3%
Turn Ratios
Schm 2: Pins pri(1-3):fb(5-6):v1(12-10):v2(11-9)
Schm 3: Pins pri(1-3):fb(5-6):v1(12-11):v2(10-9):v3(8-7)
1 : 0.529 : 0.350 : 0.176 : 0.088 +/-3%
1
1
2
1
1
2
1
1
2
1
1
1
1
1
1
2
2
2
Output
(3)x3.3V@0.45A
(3)x5.0V@0.30A
(2)x12.0V@0.20A
(3)x3.3V@0.75A
(3)x5.0V@0.50A
(2)x12.0V@0.30A
(3)x3.3V@1.35A
(3)x5.0V@0.90A
(2)x12.0V@0.60A
Part
Number
PoE13W3VERS-R
Induct-
ance
Watts (
μ
H)
13
100
Output
V1:7.0V@1.1A,
V2:(1)x3.3V@1.1A,
V3:1.8V@1.1A
V1:5.0V@1.6A,
V2:3.3V@1.6A
DCR
DCR
Leakage
Primary Secondary Inductance
(
Ω
)
V1/V2/V3 e (
μ
H) typ.
0.25
0.025/0.0
42:0/085
0.023/0.0
38/na
1
Dimen-
Sche- sion
matic Size
3
2
PoE13W2VERS-R
13
100
0.25
1.2
1.7
1 : 0.529 : 0.265 : 0.176 +/-3%
2
2
For full product information and a listing of all available inductor values, see http://www.cooperbussmann.com/datasheets/elx, Data sheet number 4316.
Dimensions - mm
A
max.
Size 1 17.1
Size 2 18.0
White Dot Pin #1
B
ref.
16.0
18.0
C
max.
22.3
24.6
D
ref.
0.7
0.7
E
max.
8.4
10.0
F
ref.
3.0
3.3
G
ref.
0.1
0.1
H
ref.
0.4
0.4
Front View
I
ref.
14.49
14.25
J
1.79
1.75
K
3.43
3.43
L
ref.
16.88
19.14
M
max.
23.74
26.0
N
2.54
2.5
O
0.75
0.75
Top View
12
Recommended Pad Layout
M
1
D
(12 plcs)
E
PoE
A
H
(12 plcs)
6
7
G
(12 plcs)
1
F
(2 plcs)
I
6
K
(12plcs)
J
(12plcs)
L
12
Component Side
O
(10plcs)
N
(10plcs)
7
B
C
1) Tolerances A - H are ± 0.25mm unless specified otherwise. 2) Tolerances I - O are ± 0.10mm unless specified otherwise. 3) All soldering surfaces are co-planer to within ± 0.102mm.
Schematics
Schematic 1
Output
Primary
Schematic 2
Schematic 3
Output
Primary
Output
Primary
Output
Feedback
Feedback
Output
Output
Feedback
Output
Output
COOPER [ COOPER BUSSMANN, INC. ]
