DC-DC Controller
LD7261A-Photoflash Capacitor Charger

General Description

The LD7261A is an ideal charge control IC for flash units with internal soft start, adjustable charging current and output voltage. It provides a proprietary charging algorithm, which charges photoflash capacitor quickly and efficiently.

The LD7261A is specially designed for automatically and linearly lowering the charging current at lower battery voltage. As well, a built-in totem pole IGBT driver can drive IGBT quickly and save the board space.

The LD7261A is available in a space-saving MSOP-10 package and is ideal for DSC flash unit.

… Patent pending

Features

• Adjustable Charging Current
• Adjustable Output Voltage
• 1.8V~5V Battery Voltage Range
• Internal Soft Start
• Tiny Transformer
• Totem-Pole IGBT Driver

Applications

• DSC Flash Unit
• Film Camera Flash Unit



Typical Application


click to view large size