Datasheet > MAX20446B

MAX20446B

更新时间： 2024-09-17 02:52:51

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
47页	1244K
描述
Automotive 6-Channel Backlight Driver with Boost/SEPIC Controller, Hybrid Dimming and I2C Interface

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MAX20446B 数据手册

Click here to ask about the production status of specific part numbers.

MAX20446B

Automotive 6-Channel Backlight Driver with

Boost/SEPIC Controller, Hybrid Dimming and

I C Interface

General Description

Benefits and Features

The MAX20446B is a 6-channel backlight driver with boost

controller for automotive displays. The integrated current

outputs can sink up to 130mA LED current each. The de-

vice accepts a wide 4.5V to 36V input voltage range and

withstands automotive load-dump events.

● Wide-Voltage-Range Operation

• Operates Down to 4V Supply After Startup

• Survives Load Dump Up to 52V

● High Integration

• Complete 6-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-modula-

tion (PWM) dimming and hybrid dimming. In either case,

the minimum pulse width is 500ns. Optional phase-shifted

dimming of the strings is incorporated for lower EMI.

● Versatile Dimming Scheme Allows Hybrid or PWM-

Only Dimming Using DIM Input or I C

• Dimming Ratio > 10000:1 Using Hybrid Dimming

• Dimming Ratio of 10000:1 at 200Hz Using PWM

Dimming

Comprehensive diagnostic information is also available

through the I C interface.

The device is available in a 24-pin TQFN package and op-

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

● Complete Diagnostics

• LED Open/Short Detection and Protection

• Boost Output Undervoltage and Overvoltage

• Boost Voltage

Applications

● Infotainment Displays

● Central Information Displays

● Instrument Clusters

• Individual String LED Current

• Thermal Shutdown

● Compact (4mm x 4mm) 24-Pin TQFN Package

Ordering Information appears at end of datasheet.

19-100905; Rev 1; 1/21

12 3 4 5 6 7...47

中文翻译

下载PDF

与MAX20446B相关器件

型号	品牌	获取价格	描述	数据表
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
MAX20457	MAXIM	获取价格	High-Efficiency, 36V, Dual Synchronous Buck Converters (3.5A/2A) for Automotive Applicatio
MAX20457	ADI	获取价格	36V、3.5A/2A、双路、同步Buck转换器，适用于汽车应用
MAX20457ATIA	MAXIM	获取价格	High-Efficiency, 36V, Dual Synchronous Buck Converters (3.5A/2A) for Automotive Applicatio

与MAX20446B相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

10
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

8
SL74HC10N：高性能三输入与非门解析
2024-09-03

90
AIC1781A 电池充电控制器深度解析
2024-09-03

80

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX20446B

MAX20446B 数据手册

与MAX20446B相关器件

与MAX20446B相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX20446B

MAX20446B 数据手册

与MAX20446B相关器件

与MAX20446B相关文章

您还可以找

您在本页遇到什么问题？