E L E C T R O N I C S I N C .
Photoflash Flyback Transformer
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
EPC3205G-X & EPC3205G-X-LF
Product performance is limited to specified parameters. Data is subject to change without prior notice.
Electrical Parameters @ 25 C
Unless Otherwise Specified Dimensions are in Inches /mm .010 /.25
CSC3205G-X & -LFa Rev. 4 10/12/05 FT
Voltage
(Vdc)
Primary OCL
@ 0Adc
(H 15%)
20.0
12.3
12.3
10.0
10.0
15.0
25.0
24.0
15.0
@ 100 KHz,
0.1 Vrms
LT3468-1
LT3468
LT3468-2
LT3468
LT3468-2
LT3468-1
LT3420
LT3420
LT3420-1
Chipset
2.5-5.0
2.5-5.0
2.5-5.0
2.5-4.0
2.5-5.0
2.5-5.0
1.8-5.0
1.8-6.0
1.8-5.0
V in
320
320
320
320
320
320
320
320
320
V out
DCR
(
Max.)
PCA
Part
Number
EPC3205G-1(-LF)
EPC3205G-2(-LF)
EPC3205G-3(-LF)
EPC3205G-4(-LF)
EPC3205G-5(-LF)
EPC3205G-6(-LF)
EPC3205G-7(-LF)
EPC3205G-8(-LF)
.300
.230
.230
.250
.300
.300
.160
.160
.230
Pri.
25
21
21
25
33
33
18
18
18
Sec.
Used as Flyback Transformer in High Voltage Photoflash Capacitor Charger
Designed for use with Linear Technology Chip
Add "-LF" after part number for Lead Free
Operating Temperature : -40C to +85C
UL 94V-0 Recognized Components
UL 1446 Class B Insulation System
Isolation : 500 Vrms
Leakage
Inductance
(H Typ.)
.200
.130
.130
.200
.300
.300
.130
.080
.100
@ 100 KHz,
0.1 Vrms
0.7
1.4
1.0
1.4
1.0
0.7
1.4
1.4
1.0
Primary Peak
Current
(A Max.)
1:10.2
1:10.2
1:10.2
1:10.2
1:10.2
1:10.2
1:12
1:12
1:10.2
Pri:Sec
Turns
Ratio
A/1
B/1
B/1
F/2
F/2
F/2
C/1
E/3
D/1
Package/
Schematic
Package Drawings Next Page
Schematic 1
2
3
4
1
Pri.
Sec.
T1
Schematic 2
2
4
6
1
Pri.
Sec.
T1
Schematic 3
3,4
1
8
5,6
Pri.
Sec.
T1
Flash
Flying
Lead
320V
D1
C1
4.7F
C4
220F
330V
C2
4.7F
VCC
2.5V-10V
Charge
Done
C3
0.1F
CT
GND
VBAT
1.8V-10V
RREF
VBAT RFB SW
T1
1:12
10
8
9
4
2
3
6
7
1
5
Photoflash
Capacitor
+
8
1
3.4
5.6
LT3420
SEC
LT3420 320V Photoflash Capacitor Charging Circuit
Bold Lines Indicate
High Current Paths
T2
Notes :
1. Assembly Process
(Solder Composition)
2. Peak Solder Rating
(per IPC/JEDEC-J-STD-020C)
4. Weight
5. Packaging Information
(Tube)
EPC3205G-X
SnPb
225C
TBD grams
TBD pcs / tube
3. Moisture Sensitive Levels (MSL)
(per IPC/JEDEC-J-STD-020C)
1
(Unlimited,
30C/60%RH)
EPC3205G-X-LF
Pb-Free
260C
TBD grams
TBD pcs / tube
1
(Unlimited,
30C/60%RH)
E L E C T R O N I C S I N C .
Photoflash Flyback Transformer
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
EPC3205G-X & EPC3205G-X-LF
Product performance is limited to specified parameters. Data is subject to change without prior notice.
Unless Otherwise Specified Dimensions are in Inches /mm .010 /.25
CSC3205G-X & -LFb Rev. 4 10/12/05 FT
Package A
Pin 1 I.D.
.098 Max.
(2.50)
Marking :
PCA
EPC3205G-1(-LF)
D.C.
.422
(10.72)
.277
(7.04)
Recommended
Layout
.350
(8.90)
.350
(8.90)
Package B
Pin 1 I.D.
.138 Max.
(3.50)
Marking :
PCA
EPC3205G-2(-LF)
D.C.
.3.83
(9.72)
.238
(6.04)
Recommended
Layout
.311
(7.90)
.311
(7.90)
1
2
3
4
1
2
3
4
Package C
Pin 1 I.D.
.205 Max.
(5.20)
Marking :
PCA
EPC3205G-6(-LF)
D.C.
.422
(10.72)
.277
(7.04)
Recommended
Layout
.350
(8.90)
.350
(8.90)
Package D
Pin 1 I.D.
.193 Max.
(4.90)
Marking :
PCA
EPC3205G-8(-LF)
D.C.
.383
(9.72)
.238
(6.04)
Recommended
Layout
.311
(7.90)
.311
(7.90)
1
2
3
4
1
2
3
4
Package E
Package F
.342
(8.70)
.063
(1.60)
.047
(1.20)
.073
(1.85)
Pad
Layout
Side Marking :
PCA EPC3205G-X(-LF)
D.C.
.146
(3.70)
.209
(5.30)
.209
(5.30)
1
6
3
4
.073
(1.85)
.024
(.600)
.303
(7.70)
0-8
.187
(4.75)
Pin 1 I.D.
.006
(.150)
.010
(.250)
.358
(9.10)
.067
(1.70)
.079
(2.00)
.059
(1.50)
Pad
Layout
Side Marking :
PCA EPC3205G-7(-LF)
D.C.
.236
(6.00)
.319
Typ.
(8.10)
.401
Typ.
(10.20)
Pin 1
I.D.
1
8
4
5
.079
(2.00)
.020
(.500)
.453
(11.50)
.026
(.650)
0-8
.008
(.203)
.193
(4.90)
.012
(.300)
.490
(10.90)
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