The MIC2870 is a high-current, high-efficiency flash LED driver for one or two high-brightness camera flash LEDs.
The LED driver current is generated by an integrated inductive boost converter with 2MHz switching frequency which allows the use of a very-small inductor and output capacitor. These features make the MIC2870 an ideal solution for high-resolution camera phone LED flashlight driver applications.
MIC2870 supports two 750mA white-LEDs (WLEDs) or a single 1.5A WLED configuration. When two WLEDs are connected, their currents are matched automatically.
MIC2870 operates in either flash or torch modes that can be controlled through either an I2C interface or external pins. The brightness in the flash and torch mode can be adjusted via two external resistors individually. High-speed mode I2C interface provides a simple control at a clock speed up to 3.4MHz to support most camera functions such as auto-focus, white balance, and image capture (flash mode).
The MIC2870 is available in 16-pin, 2mm × 2mm TQFN package with a junction temperature range of −40°C to +125°C.
Additional Features
Up to 1.5A flash LED driving current with a 2.7V to 5.0V input voltage range
High-efficiency 2MHz VFadaptive boost driver
Configurable 1 or 2 channel(s) WLED driver
LED driving current soft-start
Control through I2C interface or external pins
Flash inhibit function for GSM pulse synchronization
True load disconnect
Flash time-out protection
1µA shutdown current
Available in 16-pin 2mm × 2mm TQFN package
The MIC2870 is a high-current, high-efficiency flash LED driver for one or two high-brightness camera flash LEDs.
The LED driver current is generated by an integrated inductive boost converter with 2MHz switching frequency which allows the use of a very-small inductor and output capacitor. These features make the MIC2870 an ideal solution for high-resolution camera phone LED flashlight driver applications.
MIC2870 supports two 750mA white-LEDs (WLEDs) or a single 1.5A WLED configuration. When two WLEDs are connected, their currents are matched automatically.
MIC2870 operates in either flash or torch modes that can be controlled through either an I2C interface or external pins. The brightness in the flash and torch mode can be adjusted via two external resistors individually. High-speed mode I2C interface provides a simple control at a clock speed up to 3.4MHz to support most camera functions such as auto-focus, white balance, and image capture (flash mode).
The MIC2870 is available in 16-pin, 2mm × 2mm TQFN package with a junction temperature range of −40°C to +125°C.
Additional Features
- Up to 1.5A flash LED driving current with a 2.7V to 5.0V input voltage range
- High-efficiency 2MHz VFadaptive boost driver
- Configurable 1 or 2 channel(s) WLED driver
- LED driving current soft-start
- Control through I2C interface or external pins
- Flash inhibit function for GSM pulse synchronization
- True load disconnect
- Flash time-out protection
- 1µA shutdown current
- Available in 16-pin 2mm × 2mm TQFN package
