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Photoflash Flyback Transformer
ELECTRONICS INC.
EPC3205G-X & EPC3205G-X-LF
• Used as Flyback Tra...
www.DataSheet4U.com
Photoflash Flyback Transformer
ELECTRONICS INC.
EPC3205G-X & EPC3205G-X-LF
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 : -40°C to +85°C UL 94V-0 Recognized Components UL 1446 Class B Insulation System Isolation : 500 Vrms
Electrical Parameters @ 25° C
PCA Part Number Chipset
Voltage (Vdc) V in EPC3205G-1(-LF) EPC3205G-2(-LF) EPC3205G-3(-LF) EPC3205G-4(-LF) EPC3205G-5(-LF) EPC3205G-6(-LF) EPC3205G-7(-LF) EPC3205G-8(-LF) LT3468-1 LT3468 LT3468-2 LT3468 LT3468-2 LT3468-1 LT3420 LT3420 LT3420-1 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 out 320 320 320 320 320 320 320 320 320 0.7 1.4 1.0 1.4 1.0 0.7 1.4 1.4 1.0 Primary Peak Current (A Max.) Turns Ratio Pri:Sec 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 Primary OCL @ 0Adc (µH ± 15%) @ 100 KHz, 0.1 Vrms 20.0 12.3 12.3 10.0 10.0 15.0 25.0 24.0 15.0 Leakage Inductance (µH Typ.) @ 100 KHz, 0.1 Vrms .200 .130 .130 .200 .300 .300 .130 .080 .100 DCR (Ω Max.) Pri. .300 .230 .230 .250 .300 .300 .160 .160 .230 Sec. 25 21 21 25 33 33 18 18 18 A/1 B/1 B/1 F/2 F/2 F/2 C/1 E/3 D/1 Package/ Schematic
Schematic 1
1 Pri. 2 3
T1
LT3420 320V Photoflash Capacitor Charging Circuit
4 Sec.
VBAT 1.8V-10V C1 4.7µF T1 1:12 5.6 8 D1 320V
3.4
1
Schematic 2
1 Pri. 2 4
VCC 2.5V-10V C2 4.7µF T1
Flying Lead T2
6 Sec.
2 3 6 4 VBAT RFB SW...