The MIC2871 is a high-current, high-efficiency flash LED driver. The LED driver current is generated by an integrated inductive boost converter with a 2MHz switching frequency which allows the use of very small inductor and output capacitor. These features make the MIC2871 an ideal solution for high-resolution camera phone LED flash light driver applications.
The MIC2871 operates in either flash or torch modes that can be controlled through the single-wire serial interface and/or external control pins. Default flash and torch brightness can be adjusted via an external resistor. A robust single-wire serial interface allows simple control by the host processor to support typical camera functions such as auto-focus, white balance, and image capture (flash mode).
The MIC2871 is available in a 14-pin 3mm × 2mm LDFN package with a junction temperature range of −40°C to +125°C
Additional Features
Up to 1.2A flash LED driving current
Highly efficient, synchronous boost driver (up to 94%)
±5% LED current accuracy
Control through single-wire serial interface or external control pins
Input voltage range: 2.7V to 5.5V
True load disconnect
Configurable safety time-out protection
Output overvoltage protection (OVP)
LED short detection and protection
1µA shutdown current
Available in 14-pin 3mm × 2mm LDFN package
The MIC2871 is a high-current, high-efficiency flash LED driver. The LED driver current is generated by an integrated inductive boost converter with a 2MHz switching frequency which allows the use of very small inductor and output capacitor. These features make the MIC2871 an ideal solution for high-resolution camera phone LED flash light driver applications.
The MIC2871 operates in either flash or torch modes that can be controlled through the single-wire serial interface and/or external control pins. Default flash and torch brightness can be adjusted via an external resistor. A robust single-wire serial interface allows simple control by the host processor to support typical camera functions such as auto-focus, white balance, and image capture (flash mode).
The MIC2871 is available in a 14-pin 3mm × 2mm LDFN package with a junction temperature range of −40°C to +125°C
Additional Features
- Up to 1.2A flash LED driving current
- Highly efficient, synchronous boost driver (up to 94%)
- ±5% LED current accuracy
- Control through single-wire serial interface or external control pins
- Input voltage range: 2.7V to 5.5V
- True load disconnect
- Configurable safety time-out protection
- Output overvoltage protection (OVP)
- LED short detection and protection
- 1µA shutdown current
- Available in 14-pin 3mm × 2mm LDFN package
