Microchip Technology MIC4832
The MIC4832 is a low-noise 220VPP electroluminescent lamp (EL) driver. The MIC4832 can drive large-panel displays for mobile phones, multimedia players, or automotive electronics where EL panels are used for backlighting. The MIC4832 also offers design flexibility with adjustable lamp and boost converter frequencies, simply by applying external resistors.FEATURES
● 1.8V to 5.5V DC Input Voltage● 220VPP Output Voltage Capable
● Low Audible Noise EL Drive Waveform
● Supports EL Panel Sizes up to 3 in2 (19 cm2)
● Low 45 µA Operating Supply Current
● Small Inductor Size with Low Profile (220 µH)
● Tiny 8-Lead 3 mm x 3 mm DFN 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
GENERAL DESCRIPTION
Using advanced Bipolar, CMOS, and DMOS (BCD) technology, the MIC4832 integrates a high voltage boost converter and an H-bridge driver for driving a large EL lamp. A new H-bridge design reduces audible noise by creating smoother AC voltage across the EL panel. The MIC4832 is offered in a 3 mm x 3 mm DFN and MSOP-8 lead-free and RoHS-compliant packaging with a –40°C to 85°C junction temperature range. Package Types MIC4832 8-Lead DFN (ML) (Top View) VDD 1 RSW 2 REL 3 GND 4 8 VA 7 VB 6 CS 5 SW MIC4832 8-Lead MSOP (MM) (Top View) VDD 1 RSW 2 REL 3 GND 4 8 VA 7 VB 6 CS 5 SW 2019 - 2022 Microchip Technology Inc.