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ZXSC440 Datasheet(PDF) 1 Page - Diodes Incorporated |
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ZXSC440 Datasheet(HTML) 1 Page - Diodes Incorporated |
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1 / 16 page  SEMICO NDUC TORS DESCRIPTION The ZXSC440 is a dedicated photoflash charger, charging an 80 F photoflash capacitor to 300V in 3.5 seconds from a 3V supply. The flyback conversion efficiency is typically 75%, much higher than the commonly used discrete charging circuits. The Charge pin enables the circuit to be initiated from the camera's microprocessor, using negligible current when flash is not being used. FEATURES • Charges a 80 F photoflash capacitor to 300V in 3.5 seconds from 3V • Charges various value photoflash capacitors • Over 75% flyback efficiency • Charge and Ready pins • Consumes only 4.5 A when not charging • Small MSOP8 low profile package The Ready pin signals the microprocessor when the flash is charged and ready to be fired. A small amount of hysteresis on the voltage feedback shuts down the device as long as the capacitor remains fully charged, again using negligible current. APPLICATIONS • Digital camera flash unit • Film camera flash unit ZXSC440 ISSUE 1 - JANUARY 2005 PHOTOFLASH CHARGER 1 PINOUT MSOP8 pin TOP VIEW TYPICAL APPLICATION CIRCUIT DEVICE DEVICE DESCRIPTION TEMPERATURE RANGE PART MARK TAPING OPTIONS ZXSC440X8TA Camera flash charger -40°C to +85°C ZXSC440 TA, TC ZXSC440X8TC ORDERING INFORMATION • TA reels hold 1000 devices • TC reels hold 4000 devices |
Similar Part No. - ZXSC440 |
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Similar Description - ZXSC440 |
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