Microchip | MIC4830YMM

The MIC4830YMM is a low noise 180 VPP electroluminescent lamp (EL) driver. Using advanced Bipolar, CMOS, DMOS (BCD) technology, the MIC4830 integrates a high voltage boost converter and an H-bridge driver for driving a large EL lamp.

The MIC4830 can drive large panel displays for mobile phones, multimedia players or automotive electronics where EL panels are used for backlighting. The MIC4830 offers design flexibility with adjustable lamp and boost converter frequencies, simply by applying external resistors. A new H-Bridge design reduces audible noise by creating smoother AC voltage across the EL panel. The MIC4830 is offered in MLF® 3 mm × 3 mm and MSOP-8 Pb-free and RoHS-compliant packaging with a –40°C to 85°C junction temperature range.

Key Features:

• 1.8 V to 5.5 V input voltage.
• 180 Vpp output voltage.
• Low audible noise EL drive waveform.
• Supports EL panel sizes up to 4in2 (25 cm2).
• Low 45 μA operating supply current.
• Small inductor size with low profile (220 μH).
• Tiny 8-pin 3 mm × 3 mm MLF® package.
• Adjustable boost converter frequency.
• Adjustable EL lamp frequency.
• Low 10 nA shutdown current.

Applications:

• LCD panel backlight.
• Mobile Phones.
• PDAs.
• Pagers.
• Calculators.
• Multimedia Players.
• Remote controls.
• GPS Receivers.