Description
Features
- Drive up to 1.5A flash current
- Programmable threshold low-voltage input protection
- High efficiency converter (up to 90%)
- Input voltage range: 2.7V to 5.5V
- 2MHz step-up converter
- Very small inductor: 1.0μH to 2.2μH
- Very small load capacitor: 4.7μF to10μF
- ExpressWireTM digital control enables and programs flash and movie current in 16 steps
- External resistor sets maximum flash current
- Integrated thermal regulation control
- 2mA LED shorting test current and 1.7V forward voltage threshold
- LED open/short protection
- Over-voltage protection
- Cycle-by-cycle inductor current limit
- Programmable Flash Time out protection 0.1µA shutdown current
- Pb-free Package: UDFN22-10L
- -40°C to +85°C Temperature Range
Applications
- Mobilephones
- Smart Phones and PDAs
- Digital Still Cameras
Key Electrical Specifications
| Vin(Min) | Vin(Max) | Max. Current Per Chanel(Max) | Channels | Control Type | Package |
| 2.7V | 5.5V | 1500mA | 1 | ExpressWire | UDFN22-10 |
Typical Application Diagram
