LD7266A
LD7266A is Photoflash Capacitor Charger manufactured by Leadtrend.
3/1/2007
Photoflash Capacitor Charger with Integrated MOS
REV: 00
General Description
The LD7266A 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 to charge photoflash capacitor quickly and efficiently. The LD7266A could operate in constant charging current mode or the mode with lowering the charging current at lower battery voltage. As well, the built-in 45V power switch and IGBT driver can save the board space.
The LD7266A is available in a space-saving MSOP10 or DFN-10 package and is ideal for DSC flash unit.
Features
- Adjustable Charging Current and Output Voltage
- 1.8V~5V Battery Voltage Range
- Tiny Transformer
- Totem-Pole IGBT Driver
- Integrated 45V power switch
- Output Voltage Overcharge Protection
Applications
- DSC Flash Unit
- Cell Phone with Camera g Patented
Typical Application
D1
T1
C2 140µF
R1 196K
VCC 1µF
R2 196K
R1 100K
Ready
R3 1.5K
IGBT Gate
SEC 1n F
VCC LD7266A
LX...