Flash LED Driver with Programmable 1.5A Current Source
Features
- High efficiency synchronous boost converter with 2MHz/4MHz switching frequency option
- I2C interface programming and hardware STROBE/TORCH control
- Two-channel independent current sources
- LED1: Up to 1.5A (7 bits)
- LED2: Up to 0.75A (6 bits)
- Flash/Torch/IR modes
- Independent LED on/off and current settings
- Programmable ramp shape and time control
- Three input low voltage protection modes
- Flash time-out protection
- LED cathode ground connection for improved thermal dissipation
- LED open/short protection
- I2C fault read back (I2C address = 0x63)
Applications
- Smartphones and Tablets Camera Flash
- Digital Cameras
Key Electrical Specifications
Vin(Min) |
Vin(Max) |
Max. Current per Channel |
Channels |
Control |
Package |
2.7V |
5.5V |
1500mA |
1 |
I2C |
WLCSP34-12 |
Typical Application Diagram