Datasheet > MAX98400B

MAX98400B

更新时间： 2024-11-21 14:57:47

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
27页	1444K
描述
立体声、大功率、D类放大器

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中文翻译

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MAX98400B 数据手册

EVALUATION KIT AVAILABLE

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MAX98400A/MAX98400B

Stereo, High-Power, Class D Ampliﬁers

General Description

Features

The MAX98400A/MAX98400B Class D amplifiers provide

high-performance, thermally efficient amplifier solutions. The

MAX98400A delivers 2x20W into 8Ω loads or 1x40W into a

4Ω load. The MAX98400B delivers 2x12W into 8Ω loads.

● Wide 8V to 28V Supply Voltage Range

● Single-Supply Operation

● Low EMI: Active Emissions Limiting

● Clipping Limiter

An integrated limiting circuit prevents output clipping

distortion, protects small speakers from transient voltages,

and reduces power dissipation.

● Low Quiescent Current

● Thermal Foldback

A thermal-foldback feature can be enabled to automatically

reduce the output power at above a junction temperature

of +120°C. Traditional thermal protection is also available in

addition to robust overcurrent protection.

● Thermal and Overcurrent Protection

Applications

● LCD/PDP Televisions

The ICs operate from a single 8V to 28V supply and provide

a high 67dB PSRR, eliminating the need for a regulated

power supply. They offer up to 90% efficiency from a 12V

supply.

● LCD Monitors

● MP3 Docking Stations

● Notebook PCs

Filterless modulation allows the ICs to pass EN55022B EMI

limits with 1m cables using only a low-cost ferrite bead and

small-value capacitor on each output.

Both devices feature eight digitally controlled gain settings.

Ordering Information appears at end of data sheet.

Comprehensive click-and-pop reduction circuitry minimizes

noise coming into and out of shutdown.

The MAX98400A/MAX98400B are available in 36-pin and

24-pin TQFN packages, respectively, and are specified over

the -40°C to +85°C temperature range.

Simpliﬁed Block Diagram

INL-

OUTL-

CLASS D

MODULATOR

AND H-BRIDGE

CLIPPING

PGA

LIMITER

INL+

INR-

OUTL+

MONO*

MAX98400A/B

OUTR-

OUTR+

CLASS D

CLIPPING

PGA

MODULATOR

AND H-BRIDGE

LIMITER

INR+

*MAX98400A ONLY

19-5286; Rev 3; 10/20

12 3 4 5 6 7...27

中文翻译

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与MAX98400B相关器件

型号	品牌	获取价格	描述	数据表
MAX98400BETG+	MAXIM	获取价格	Stereo, High-Power, Class D Amplifiers
MAX98400BEVKIT	MAXIM	获取价格	MAX98400B Evaluation Kit
MAX98400BEVKIT+	MAXIM	获取价格	MAX98400B Evaluation Kit
MAX984CPE	MAXIM	获取价格	Ultra-Low-Power, Open-Drain, Single/Dual-Supply Comparators
MAX984CPE+	MAXIM	获取价格	Comparator, 4 Func, 10000uV Offset-Max, 300000ns Response Time, PDIP16, 0.300 INCH, PLASTI
MAX984CSE	MAXIM	获取价格	Ultra-Low-Power, Open-Drain, Single/Dual-Supply Comparators
MAX984EPE	MAXIM	获取价格	Ultra-Low-Power, Open-Drain, Single/Dual-Supply Comparators
MAX984EPE+	ROCHESTER	获取价格	QUAD COMPARATOR, 10000uV OFFSET-MAX, 300000ns RESPONSE TIME, PDIP16, 0.300 INCH, PLASTIC,
MAX984ESE	MAXIM	获取价格	Ultra-Low-Power, Open-Drain, Single/Dual-Supply Comparators
MAX985	MAXIM	获取价格	Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators