Datasheet > MAX20444C

MAX20444C

更新时间： 2024-11-10 14:58:15

品牌	Logo	应用领域
亚德诺 - ADI		驱动控制器驱动器
页数	文件大小	规格书
41页	1526K
描述
集成升压/SEPIC控制器和 I2C接口的汽车级4通道、130mA背光驱动器

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MAX20444C 数据手册

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Automotive 4-Channel, 130mA Backlight Driver

with Boost/SEPIC Controller and I²C Interface

MAX20444C

General Description

Beneﬁts and Features

● Wide Voltage-Range Operation

The MAX20444C is a 4-channel backlight driver IC with

boost controller for automotive displays. The integrated

current outputs can sink up to 130mA LED current each.

The device accepts a wide 4.5V to 36V input volt-

age range and withstands direct automotive load-dump

events.

• Operates Down to 4V Supply After Startup

• Survives Load Dumps Up to 52V

● High Integration

• Complete 4-Channel Solution Including Boost

Controller

The internal current-mode switching DC-DC controller

supports boost or SEPIC topologies and operates in the

400kHz to 2.2MHz frequency range. Integrated spread

spectrum helps reduce EMI. An adaptive output-voltage-

control scheme minimizes power dissipation in the LED

current-sink paths.

• I C Control for Minimum Parts Count

● Robust and Low EMI

• Spread-Spectrum Oscillator

• Phase Shifting

• 400kHz to 2.2MHz Switching-Frequency Range

• Fail-Safe Operation Mode Using the FSEN Pin

The device features I C-controlled pulse-width-modu-

● Versatile Dimming Scheme Allows Hybrid or

lation (PWM) dimming and hybrid dimming. In either

case, the minimum pulse width is 500ns. Phase-shifted

dimming of the strings is incorporated for lower EMI.

PWM-Only Dimming Using DIM Input or I C

• Dimming Ratio > 10,000:1 Using Hybrid Dimming

• 10,000:1 Dimming Ratio at 200Hz Using PWM

Dimming

Comprehensive diagnostic information is also available

through the I C interface, while stand-alone operation is

also supported.

● Complete Diagnostics

• LED Open/Short Detection and Protection

• Boost Output Undervoltage and Overvoltage

• Boost-Voltage Measurement

• LED-Current Measurement

The MAX20444C is available in a 24-pin TQFN or 24-pin

side-wettable TQFN (SWTQFN) package and operates

over the -40°C to +125°C temperature range.

Applications

• Thermal Shutdown

● Infotainment Displays

● Central Information Displays

● Instrument Clusters

● Compact (4mm x 4mm) 24-Pin TQFN and

SWTQFN Packages

Ordering Information appears at end of data sheet.

19-101244; Rev 1; 12/21

One Analog Way, Wilmington, MA 01887 U.S.A.

Tel: 781.329.4700

12 3 4 5 6 7...41

中文翻译

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与MAX20444C相关器件

型号	品牌	获取价格	描述	数据表
MAX20446	ADI	获取价格	汽车级6通道背光照明驱动器，带Boost/SEPIC控制器和I2C接口
MAX20446B	MAXIM	获取价格	Automotive 6-Channel Backlight Driver with Boost/SEPIC Controller, Hybrid Dimming and I2C
MAX20446B	ADI	获取价格	集成升压/SEPIC控制器和I2C接口的汽车6通道背光驱动器
MAX20446BATG	MAXIM	获取价格	Automotive 6-Channel Backlight Driver with Boost/SEPIC Controller, Hybrid Dimming and I2C
MAX20446BATGA	MAXIM	获取价格	Automotive 6-Channel Backlight Driver with Boost/SEPIC Controller, Hybrid Dimming and I2C
MAX20446BEVKIT	MAXIM	获取价格	Demonstrates Cycle-by-Cycle Current Limit and Thermal-Shutdown Features
MAX20446C	ADI	获取价格	集成升压/SEPIC控制器和混合调光功能的汽车级6通道背光驱动器
MAX2044ETP+	MAXIM	获取价格	SiGe, High-Linearity, 2300MHz to 4000MHz Upconversion/Downconversion Mixer with LO Buffer
MAX2044ETP+T	MAXIM	获取价格	SiGe, High-Linearity, 2300MHz to 4000MHz Upconversion/Downconversion Mixer with LO Buffer
MAX2045	MAXIM	获取价格	High-Gain Vector Multipliers

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