MIC2841A Description
Features The MIC2841A is a high efficiency White LED (WLED) High Efficiency (no Voltage Boost losses) driver designed to drive up to four WLEDs, greatly Dynamic Average Matching™ (DAM™) extending battery life for portable display backlighting, Ultra Fast PWM™ control (200Hz to 500kHz) keypad backlighting and camera flash in mobile devices. 3.0V to 5.5V The MIC2841A provides the highest possible efficiency as Dropout...
MIC2841A Key Features
- High Efficiency (no Voltage Boost losses) driver designed to drive up to four WLEDs, greatly
- Dynamic Average Matching™ (DAM™) extending battery life for portable display backlighting
- Ultra Fast PWM™ control (200Hz to 500kHz) keypad backlighting and camera flash in mobile devices
- Input voltage range: 3.0V to 5.5V The MIC2841A provides the highest possible efficiency as
- Dropout of 40mV at 20mA this architecture has no switching losses present in traditional charge pumps or inductive boost
- Matching better than ±1.5% (typical) MIC2841A provides four linear driver channels which
- Current accuracy better than ±1.5% (typical) maintain constant current for up to four WLEDs. It features
- Maintains proper regulation regardless of how many a typical dropout of 40mV at 20mA. This allows the channels are utili
- Available in a 10-pin 2mm x 2mm Thin MLF® package switching noise/losses present with the use of boost circuitry