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WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748

Size L
(mm)
W
(mm)
H
(mm)
EP5 8.26 6.6 5.59
EP7 9.14 9.78 10.54
EP10 15.24 13.34 11.43
EP13 17.75 13.5 12.5
ER9.5 12.95 10.41 5.97
EE16/8/5 24.5 20.2 16.5
EE20/10/6 25 21 16
EFD20 28.7 21.97 11.43
EFD25 32.31 27.03 13.69

Characteristics

  • easy design in solution
  • less external components needed
  • small board space
  • low cost
  • no optocoupler needed!
  • long term reliability voltage control
  • no aging
  • same external parts for different output voltages
  • easy design of custom power supply due to standard circuit and change of transformers and two components for feedback loop
  • Isolation voltage up to 2.5 kV

Applications

  • Isolated power design
  • Sensor interfaces
  • Isolated telecom converters
  • Power over Ethernet

Products

All
EP5
EP7
EP10
EP13
ER9.5
EE16/8/5
EE20/10/6
EFD20
EFD25
Order Code SPEC Downloads VOut1
(V)
IOut1
(A)
VOut2
(V)
IOut2
(A)
VOut3
(V)
IOut3
(A)
VOut4
(V)
IOut4
(A)
L1
(µH)
n ISAT 1
(A)
LSmin.
(µH)
VT
(V (AC))
Size IC Reference Vin Samples
750310559
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 3.3 1.5 24 4 : 1 2.1 0.5 1500 EP10 LT3573 & LT3575 12 - 30 V (DC)
750311458
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 3.3 4 15 3 : 1 5 0.175 2500 EP13 LT3575 & LT3748 36 V (DC)
750311625
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 3.3 4 9 4 : 1 8 0.35 1500 EP13 LT3575 & LT3748 10 - 40 V (DC)
750370059
STE ALT EAG CAD LTS IGS CAD CAD 5 1 50 3 : 1 1.6 0.5 1500 EP7 LT3573 18 - 30 V (DC)
750370041
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 1 50 3 : 1 1.6 0.45 1500 EP7 LT3574 & LT3573 18 - 30 V (DC)
750370040
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 1 30 3 : 1 1.7 1 1500 EP7 LT3574 & LT3573 18 - 30 V (DC)
750370047
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 1 30 3 : 1 1.7 1 1500 EP7 LT3574 & LT3573 18 - 30 V (DC)
750310471
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 2 25 3 : 1 2.6 0.43 1500 EP10 LT3573 & LT3575 9 - 30 V (DC)
750310564
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 1 5 1 63 3 : 1 1.45 0.6 1500 EP10 LT3574 & LT3573 & LT3575 12 - 30 V (DC)
750311675
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 2 25 3 : 1 2.5 0.13 1500 EP10 LT3573 & LT3575 & LT3748 9 - 30 V (DC)
750311303
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 3 50 5 : 1 2.25 0.8 1500 EP10 LT3575 9 - 30 V (DC)
750311304
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 3 50 4 : 1 2.4 0.85 1500 EP10 LT3574 & LT3575 9 - 30 V (DC)
750311567
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 3 7 2 : 1 11.2 0.8 1500 EP10 LT3575 & LT3748 10 - 40 V (DC)
750311342
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 3 15 2 : 1 5.8 0.65 1500 EP10 LT3575 36 V (DC)
750311564
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 3 9.07 3 : 1 8 0.12 1500 EP13 LT3575 & LT3748 10 - 40 V (DC)
750311422
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 4 50 5 : 1 3.3 0.6 1500 EP13 LT3575 & LT3748 36 V (DC)
750311423
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 4 50 4 : 1 3.85 0.6 1500 EP13 LT3575 & LT3748 36 V (DC)
750311457
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 4 50 4 : 1 3.7 0.6 2500 EP13 LT3575 & LT3748 36 V (DC)
750311688
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 4 50 5 : 1 3.1 0.6 1500 EP13 LT3575 & LT3748 36 V (DC)
750311689
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 4 50 4 : 1 3.7 0.6 2500 EP13 LT3575 & LT3748 36 V (DC)
750370042
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 0.2 5 0.1 5 0.1 15 1 : 1 : 1 : 1 1.5 0.25 1500 ER9.5 LT3573 5 V (DC)
750311597
STE ALT EAG CAD LTS IGS CAD CAD 5 6 6 3 : 1 9.5 0.3 1500 EFD20 LT3748 20 - 48 V (DC)
750311605
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 6 15 7 : 2 9.5 0.5 1500 EFD20 LT3748 30 - 75 V (DC)
750311589
STE ALT EAG CAD LTS IGS CAD CAD 5 9 6 3 : 1 18 0.2 1500 EFD25 LT3748 20 - 48 V (DC)
750311593
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 5 9 15 7 : 2 18 0.3 1500 EFD25 LT3748 30 - 75 V (DC)
750310562
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 0.8 25 2 : 1 2.8 0.5 1500 EP10 LT3573 & LT3575 18 - 30 V (DC)
750310563
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 0.8 25 1 : 1 2.8 0.5 1500 EP10 LT3573 & LT3575 18 - 30 V (DC)
750311305
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 1 50 3 : 1 2.8 1.2 1500 EP10 LT3575 9 - 30 V (DC)
750311306
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 1 100 3 : 1 1.65 1.75 1500 EP10 LT3575 9 - 30 V (DC)
750311424
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 1 100 3 : 1 2.4 0.9 1500 EP13 LT3748 36 V (DC)
750311456
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 1 100 3 : 1 2.4 0.9 2500 EP13 LT3748 36 V (DC)
750311439
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 2.1 37 2 : 1 2.8 0.75 1500 EP13 LT3575 & LT3748 37 - 57 V (DC)
750311797
STE ALT EAG CAD LTS IGS CAD CAD 12 2.5 14 2 : 5 : 1 11.5 0.21 4000 EFD20 LT3748 18 - 100 V (DC)
750311598
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 2.5 8.3 2 : 1 9 0.3 1500 EFD20 LT3748 20 - 48 V (DC)
750311607
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 2.5 14 5 : 2 9.5 0.5 1500 EFD20 LT3748 30 - 75 V (DC)
750310617
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 3 4.5 1 : 1.16 14 0.15 1500 EFD20 LT3748 9 - 36 V (DC)
750311590
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 3.8 8 2 : 1 18 0.2 1500 EFD25 LT3748 20 - 48 V (DC)
750311594
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 12 3.8 15 5 : 2 18 0.4 1500 EFD25 LT3748 30 - 75 V (DC)
750311385
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 13 2.3 15 1.25 : 1 6.75 0.1 1500 EFD20 LT3748 18 - 60 V (DC)
750370058
STE ALT EAG CAD LTS IGS CAD CAD 15 0.4 25 1 : 1 2 0.185 1500 EP7 LT3573 18 - 30 V (DC)
750310799
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 15 0.4 25 1 : 1 2 0.125 1500 EP7 LT3573 18 - 30 V (DC)
750311856
STE ALT EAG CAD LTS IGS CAD CAD 15 0.15 15 0.15 15 0.15 15 0.15 3.8 1 : 4 : 4 : 4 : 4 12 0.25 1500 EP13 LT3575 & LT3748 16 - 24 V (DC)
750311624
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 15 1 9 1.5 : 1 8 0.18 1500 EP13 LT3575 & LT3748 10 - 40 V (DC)
750311911
STE ALT EAG CAD LTS IGS CAD CAD 15 0.2 15 0.2 15 0.2 15 0.2 6.8 1 : 3 : 3 : 3 : 3 13 0.1 1500 EE10/10/6 LT3748 16 - 24 V (DC)
750311599
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 15 2 8 3 : 2 12 0.5 1500 EFD20 LT3748 20 - 48 V (DC)
750311600
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 15 2 12 2 : 1 11 0.5 1500 EFD20 LT3748 30 - 75 V (DC)
750311591
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 15 3 8 3 : 2 20 0.2 1500 EFD25 LT3748 20 - 48 V (DC)
750311595
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 15 3 12 2 : 1 16 0.2 1500 EFD25 LT3748 30 - 75 V (DC)
750311771
STE ALT EAG CAD LTS IGS CAD CAD 15 3 500 6 : 1 2.5 5 2500 EFD25 LT3748 100 - 400 V (DC)
750311307
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 24 0.5 100 2 : 1 1.9 2 1500 EP10 LT3574 & LT3575 9 - 30 V (DC)
750311308
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 24 0.5 100 1 : 1 2.1 2.1 1500 EP10 LT3574 & LT3575 9 - 30 V (DC)
750311604
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 24 1.3 8 1 : 1 9.5 0.3 1500 EFD20 LT3748 20 - 48 V (DC)
750311608
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 24 1.3 12 3 : 2 9 0.5 1500 EFD20 LT3748 30 - 75 V (DC)
750311592
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 24 1.9 8 1 : 1 18 0.2 1500 EFD25 LT3748 20 - 48 V (DC)
750311596
STE ALT EAG CAD LTS LTS PSP IGS CAD CAD 24 1.9 12 3 : 2 18 0.2 1500 EFD25 LT3748 30 - 75 V (DC)
750311783
STE ALT EAG CAD LTS IGS CAD CAD 24 2.5 20 1.5 : 1 16 0.17 1500 EFD25 LT3748 19 - 70 V (DC)
750811048
STE ALT EAG CAD LTS IGS CAD CAD 30 0.3 1500 4.5 : 1 0.65 22 4500 EE16/8/5 LT3748 100 - 400 V (DC)
750310988
STE ALT EAG CAD LTS IGS CAD CAD 48 0.85 14 1 : 4.42 15 0.2 1500 EFD25 LT3748 12 V (DC)
750311691
STE ALT EAG CAD LTS IGS CAD CAD 150 0.001 60 1 : 5 0.25 1 1500 EP5 LT3748 8 - 15 V (DC)
750311692
STE ALT EAG CAD LTS IGS CAD CAD 150 0.001 150 0.001 80 1 : 5 1 2 1500 EP7 LT3748 8 - 15 V (DC)
750311486
STE ALT EAG CAD LTS IGS CAD CAD 200 0.002 200 100 1 : 10 : 10 2 4.5 1500 EP13 LT3748 12 V (DC)
750311681
STE ALT EAG CAD LTS IGS CAD CAD 200 0.002 200 100 1 : 10 : 10 2 3 1500 EP13 LT3748 12 V (DC)
750311889
STE ALT EAG CAD LTS IGS CAD CAD 250 0.1 37 1 : 5 2.95 0.16 500 EFD25 LT3748 28 V (DC)
Order Code SPEC
750310559
750311458
750311625
750370059
750370041
750370040
750370047
750310471
750310564
750311675
750311303
750311304
750311567
750311342
750311564
750311422
750311423
750311457
750311688
750311689
750370042
750311597
750311605
750311589
750311593
750310562
750310563
750311305
750311306
750311424
750311456
750311439
750311797
750311598
750311607
750310617
750311590
750311594
750311385
750370058
750310799
750311856
750311624
750311911
750311599
750311600
750311591
750311595
750311771
750311307
750311308
750311604
750311608
750311592
750311596
750311783
750811048
750310988
750311691
750311692
750311486
750311681
750311889
Samples