Provider of Ethernet IC solutions, Micrel has recently added the MIC2860 to its range of high-efficiency White LED (WLED) drivers.
The device is capable of driving two WLEDs and offers a dropout current of 30 mA per channel at 50 mV. The WLEDs runs directly from the battery and removes the charge pump or inductive switching noise arising from the system.
The MIC2860 was designed to target lighting applications such as camera flash in mobile devices, keypad backlighting and portable display backlighting. The White LED (WLED) drivers deliver an extended battery life for use in portable devices.
Users can preset the brightness level of the WLEDs with a resistor and dim the intensity with a single-wired digital control or a PWM signal.
The Director Portable Business Unit of Micrel, Andy Khayat stated that the MIC2860-2 WLED is a cost-effective, highly efficient lighting solution that can be used for backlighting purposes in portable devices. The low dropout linear design of the device provides high battery life by removing the switching losses that exist in conventional charge pumps or inductive circuits.