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ZXSC440 Datasheet(PDF) 3 Page - Zetex Semiconductors

Part # ZXSC440
Description  PHOTOFLASH CHARGER
PDF  13 Pages
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Manufacturer  ZETEX [Zetex Semiconductors]
Direct Link  http://www.diodes.com/
Logo ZETEX - Zetex Semiconductors

ZXSC440 Datasheet(HTML) 3 Page - Zetex Semiconductors

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ZXSC440
SEMICO NDUC TORS
DRAFT ISSUE F - MAY 2004
3
BLOCK DIAGRAM
PIN #
NAME
DESCRIPTION
1
DRIVE
Drive output for external switching transistor. Connect to base or gate of external
switching transistor
2VFB
Reference voltage. Internal threshold set to 300mV. Connect external resistor
network to set output voltage
3
SENSE
Inductor current sense input. Internal threshold voltage set to 28mV. Connect
external sense resistor
4
N/C
5
CHARGE
Initiate photoflash capacitor charging
6
READY
Signal to microprocessor when photoflash capacitor charged
7
GND
Ground
8VCC
Supply voltage, 1.8V to 8V
ABSOLUTE MAXIMUM RATINGS



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