General Description
The LD7269 is a highly integrated charge control IC for flash units with soft start, adjustable charging current, adjustable output voltage and quench function. It provides a proprietary constant current charging algorithm which charges photoflash capacitor quickly and efficiently. As well, the built-in totem pole IGBT driver can drive IGBT quickly and save the board space. The built-in quench circuit can provide more accurate flash time period control of strobe.
LD7269 is available in the space-saving TSSOP-16 package and is ideal for those DSC flash units that needs quench function
Features
• Adjustable charging current
• Adjustable output voltage
• Auto refresh
• 1.8V~5V battery voltage range
• Totem-pole IGBT driver
• Quench function
Applications
• DSC Flash Unit
• Film Camera Flash Unit
Typical Application
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