Microchip | MIC4832YMM

The MIC4832YMM is a low noise 220 Vp-p electroluminescent lamp (EL) driver. Using advanced Bipolar, CMOS, DMOS (BCD) technology, the MIC4832 integrates a high voltage boost converter and an H-bridge driver for driving a large EL lamp.

The MIC4832 can drive large panel displays for mobile phones, MP3 players or automotive electronics where EL panels are used for backlighting. The MIC4832 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 MIC4832 is offered in MLF ® 3 mm x 3 mm and MSOP-8 lead-free and RoHS compliant packaging with a -40°C to 85°C junction temperature range.

Key Features:

• 1.8 V to 5.5 V DC input voltage.
• 220 Vpp output voltage capable.
• Low audible noise EL drive waveform.
• Supports EL panel sizes up to 3in2 (19 cm2).
• Low 25 µA operating supply current.
• Small inductor size with low profile (220 uH).
• Tiny 3 mm x 3 mm MLF ®-8L package .
• Adjustable boost converter frequency.
• Adjustable EL lamp frequency.
• 10 nA shutdown current.

Applications:

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