Flyback Transformer
EPC3472G & EPC3472G-LF
•ꢀꢀꢀDesignedꢀtoꢀworkꢀwithꢀLinearꢀTech.ꢀLTC4278ꢀꢀꢀ
•ꢀꢀꢀBobbinꢀ:ꢀUL94Vꢁ0ꢀRecognizedꢀMaterials
•ꢀꢀꢀStorageꢀTemperatureꢀ:ꢀꢁ40°Cꢀtoꢀ+125°Cꢀ
•ꢀꢀꢀOperatingꢀTemperatureꢀ:ꢀ0°Cꢀtoꢀ+70°C
•ꢀꢀꢀClassꢀ130ºCꢀInsulationꢀSystem
E L E C T R O N I C S I N C .
•ꢀꢀꢀDutyꢀCycleꢀ:ꢀ62%ꢀMax.
•ꢀꢀꢀSwitchingꢀFrequencyꢀ:ꢀ250kHz
•ꢀꢀꢀAddꢀ“ꢁLF”ꢀafterꢀpartꢀforꢀLeadꢀFree
Electrical Parameters @ 25° C
Inductance
(ꢂHꢀ±ꢀ5%)
DCR
(mΩꢀTyp.)
Turns
Ratio
Cw-w
(pFꢀTyp.)
Leakage Inductance
(ꢂHꢀMax.)
Dielectric Rating
(Vrms)
@ꢀ100ꢀKHz,
1.0ꢀVrms
@ꢀ100ꢀKHz,
1.0ꢀVrms
@ꢀ100ꢀKHz,
1.0ꢀVrms
13.5
Pri.
280
2.6
1:0.375
Pri.:Sec.
1:0.75
95
0.25
Pri.ꢀw/ꢀAux.ꢀandꢀSec.
shorted
1500
9.0
Pri.
Wdg.ꢀꢁꢀWdg.
Wdgs.ꢀꢁꢀꢀCore
Aux.
Pri.:Aux.
Sec.
Pri.ꢀtoꢀAux.ꢀandꢀSec.
Package
Schematic
1
2
3
4
5
6
12
11
1
12
Pri.
0.830
(21.08)
9Vꢀtoꢀ57V
Sec.
5Vꢀ(5A)
6
7
8
7
Aux.
10Vꢀ(30mA)
0.440ꢀMax.
(11.18)
0.004
(0.10)
1.128
0.079
(2.01)
(28.65)
0.875
0.080
(2.03)
0.028
(0.71)
0.150
0.866
(22.0)
(22.23)
(3.81)
6
7
PCBꢀLayout
(TopꢀView)
ComponentꢀOutline
1.20ꢀxꢀ0.840
0.118
(3.00)
0.118ꢀ(3.00)
12
(30.48ꢀxꢀ21.34)
1
EPC3472G
Notes :
EPC3472G-LF
1.ꢀꢀLeadꢀFinish
SnPb
HotꢀTinꢀDipꢀ(Sn)ꢀorꢀꢀSnCu
2.ꢀꢀPeakꢀSolderꢀRating
225°C
260°C
ꢀꢀꢀꢀꢀ(forꢀwaveꢀsolderꢀprocessꢀOnly)
3.ꢀꢀWeight
13.5ꢀgrams
13.5ꢀgrams
4.ꢀꢀPackagingꢀInformation
(ꢀTrayꢀ)
40ꢀpcsꢀ/ꢀTray
40ꢀpcsꢀ/ꢀTray
UnlessꢀOtherwiseꢀSpecifiedꢀDimensionsꢀareꢀinꢀInchesꢀ/mmꢀꢀꢀ±ꢀ.010ꢀ/.25
Productꢀperformanceꢀisꢀlimitedꢀtoꢀspecifiedꢀparameters.ꢀꢀDataꢀisꢀsubjectꢀtoꢀchangeꢀwithoutꢀpriorꢀnotice.
CSC3472Gꢀ&ꢀꢁLFꢀꢀꢀꢀRev.7ꢀꢀꢀꢀ09/26/12ꢀꢀꢀJDG
PCAꢀELECTRONICS,ꢀINC.
16799ꢀSCHOENBORNꢀST.ꢀꢀꢀ
NORTHꢀHILLS,ꢀCAꢀꢀ91343ꢀꢀꢀ
TEL:ꢀ(818)ꢀ892ꢁ0761
FAX:ꢀ(818)ꢀ894ꢁ5791
http://www.pca.com