MIC4830 Datasheet, PDF (1/12 Pages) Micrel Semiconductor – Low Noise 180Vp-p EL Driver

MIC4830
Low Noise 180Vp-p EL Driver
General Description
Features
The MIC4830 is a low noise 180Vp-p 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.
• 1.8V to 5.5V input voltage
• 180Vpp output voltage
• Low audible noise EL drive waveform
• Supports EL panel sizes up to 4in² (25cm²)
• Low 45µA operating supply current
• Small inductor size with low profile (220µH)
• Tiny 3mm × 3mm MLF^®-8L package
• Adjustable boost converter frequency
• Adjustable EL lamp frequency
• Low 10nA shutdown current
The MIC4830 is offered in MLF^® 3mm × 3mm and MSOP-
8 Pb-free and RoHS compliant packaging with a –40°C to
85°C junction temperature range.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Applications
• LCD panel backlight
• Mobile Phones
• PDAs
• Pagers
• Calculators
• Multimedia Players
• Remote controls
• GPS Receivers
_________________________________________________________________________________________________
Typical Application
Low Noise EL Driver
MLF and MicroLead Frame are registered trademark of Amkor Technologies
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
September 2007
M9999-091307
[phone]