Datasheet > MIC4827

MIC4827

更新时间： 2024-11-26 14:54:59

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
24页	2813K
描述
MIC4827 is a high output voltage, DC to AC converter, designed for driving electroluminescent (EL)

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MIC4827 数据手册

MIC4827

Low Input Voltage, 180 V_PPOutput Voltage, EL Driver

Features

General Description

• 1.8V to 5.5V DC Input Voltage

The MIC4827 is a high output voltage, DC to AC

converter, designed for driving EL (Electroluminescent)

lamps. The device operates from an input voltage

range of 1.8V to 5.5V, making it suitable for 1-cell Li Ion

and 2-cell or 3-cell alkaline/NiCad/NiMH battery

applications. The MIC4827 converts a low voltage DC

input to a 180 V_PPAC output signal that drives the EL

lamp.

• 180 V_PPRegulated AC Output Waveform

• Independently Adjustable EL Lamp Frequency

• Independently Adjustable Boost Converter

Frequency

• 0.1 µA Shutdown Current

Applications

• LCD Panel Backlight

• Cellular Phones

• PDAs

The MIC4827 is comprised of two stages: a boost

stage, and an H-bridge, lamp driver, stage. The boost

stage steps the input voltage up to +90V. The H-bridge

stage then alternately switches the +90V output to each

terminal of the EL lamp, thus creating a 180 V_PPAC

signal to drive the EL lamp and generate light.

• Pagers

• Calculators

• Remote Controls

• Portable Phones

The MIC4827 features separate oscillators for the

boost and H-bridge stages. External resistors

independently set the operating frequency of each

stage. This flexibility allows the EL lamp circuit to be

optimized for maximum efficiency and brightness.

The MIC4827 uses a single inductor and a minimum

number of external components, making it ideal for

portable, space sensitive applications.

The MIC4827 is available in an 8-lead MSOP package

with an ambient temperature range of –40°C to +85°C.

Package Type

MIC4827

8-Pin MSOP (MM)

VDD

RSW

REL

GND

 2022 Microchip Technology Inc.

DS20006708A-page 1

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与MIC4827相关器件

型号	品牌	获取价格	描述	数据表
MIC4827_05	MICREL	获取价格	Low Input Voltage, 180VPP Output Voltage, EL Driver
MIC4827_09	MICREL	获取价格	Low Input Voltage, 180VPP Output Voltage, EL Driver
MIC4827BMM	MICREL	获取价格	Low Input Voltage, 180VPP Output Voltage, EL Driver
MIC4827BMMTR	MICREL	获取价格	EL Driver, 1-Segment, PDSO8, MSOP-8
MIC4827YMM	MICREL	获取价格	Low Input Voltage, 180VPP Output Voltage, EL Driver
MIC4827YMMTR	MICREL	获取价格	EL DISPLAY DRIVER, PDSO8, LEAD FREE, MSOP-8
MIC4830	MICREL	获取价格	Low Noise 180Vp-p EL Driver
MIC4830	MICROCHIP	获取价格	The MIC4830 is a low noise 180VPP electroluminescent (EL) lamp driver. Using advanced Bipo
MIC4830_09	MICREL	获取价格	Low Noise 180VPP EL Driver
MIC4830YML	MICREL	获取价格	Low Noise 180Vp-p EL Driver