MICROCHIP MIC2860-2PYC6-TR

The MIC2860 - 2P is a high efficiency white LED (WLED) driver designed to drive two WLEDs and greatly extend battery life for portable display backlighting and keypad backlighting in low - cost mobile devices. The architecture provides the highest possible efficiency by eliminating switching losses present in traditional charge pumps or inductive boost circuits. It features a typical dropout of 52 mV at 30.2 mA per channel. This allows the WLEDs to be driven directly from the battery, eliminating switching noise and losses present with the use of boost circuitry. The two channels have typical matching of ≤±0.5%, which ensures uniform display illumination under all conditions. The WLED’s brightness is externally preset by a resistor and dimmed using PWM interface operating down to less than 1% duty cycle. The MIC2860 - 2P is available in Thin SOT - 23 and SC - 70 6 - lead packages with a junction temperature range of - 40°C to + 125°C.

• High Efficiency (No Switching Losses)
• PWM Frequency as Low as 250 Hz
• Input Voltage Range: 3.0V to 5.5V
• Linear Driver Dropout of 52 mV at 30.2 mA
• Matching Better than ±0.5% (Typical)
• Current Accuracy Better than 1.0% (Typical)
• Available in Thin SOT - 23 and SC - 70 Packages

• Mobile Handsets
• Digital Cameras
• Portable Media/MP3 Players
• Portable Navigation Devices (GPS)
• Portable Applications