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Partname: | LT3420 |
Description: | Photoflash Capacitor Chargers with Automatic Refresh |
Manufacturer: | Linear Technology |
Datasheet: | PDF (368K). Click here to download *) |
The LT3420/LT3420-1 output voltage sensing scheme* monitors the flyback voltage to indirectly regulate the output voltage, eliminating an output resistor divider or discrete zener diode. This feature allows the capacitor to be held at a fully charged state without excessive power consumption. Automatic refresh (which can be defeated) allows the capacitor to remain charged while consuming an average input current of about 2mA, at a user-defined refresh rate. A logic high on the CHARGE pin initiates charging, while the DONE pin signals that the capacitor is fully charged. |
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 Click here to download LT3420 Datasheet*) |
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