MIC4832YMM Microchip

MIC4832 Low Noise 220V EL Driver PP Features General Description 1.8V to 5.5V DC Input Voltage The MIC4832 is a low noise 220V PP electroluminescent lamp (EL) driver. Using advanced 220V Output Voltage Capable PP Bipolar, CMOS, DMOS (BCD) technology, the Low Audible Noise EL Drive Waveform MIC4832 integrates a high voltage boost converter and 2 2 Supports EL Panel Sizes up to 3 in (19 cm ) an H-Bridge driver for driving a large EL lamp. The Low 45 A Operating Supply Current MIC4832 can drive large panel displays for mobile Small Inductor Size with Low Profile (220 H) phones, multimedia players or automotive electronics where EL panels are used for backlighting. Tiny 8-Lead 3 mm x 3 mm DFN Package Adjustable Boost Converter Frequency The MIC4832 offers design flexibility with adjustable lamp and boost converter frequencies, simply by Adjustable EL Lamp Frequency applying external resistors. A new H-Bridge design 10 nA Shutdown Current reduces audible noise by creating smoother AC voltage Applications across the EL panel. LCD Panel Backlight The MIC4832 is offered in a 3 mm x 3 mm DFN and Mobile Phones MSOP-8 lead-free and RoHS-compliant packaging with a 40C to 85C junction temperature range. PDAs Pagers Calculators Multimedia Players Remote Controls GPS Receivers Package Types MIC4832 MIC4832 8-Lead DFN (ML) 8-Lead MSOP (MM) (Top View) (Top View) VDD 1 8VA VDD 1 8VA RSW 2 7 VB RSW 2 7 VB REL 3 6 CS REL 3 6 CS GND 4 5 SW GND 4 5 SW 2019 Microchip Technology Inc. DS20006163A-page 1MIC4832 Typical Application Circuit Low Noise EL Driver 220H BAS20W 2.7nF VDD SW 250V N RSW CS 2.2F 3V - 4.2V MIC4832 REL VA 0 GND VB EL LAMP Functional Block Diagram V L1 D1 IN V 1 DD C C IN 5 OUT R SW SW 2 Switch 6 Oscillator RSW CS Q 1 8 R EL VA Q 2 EL EL LAMP Oscillator V REF /Q 3 7 VB 3 /Q 4 REL 4 GND DS20006163A-page 2 2019 Microchip Technology Inc.