Datasheet > MP78730DF

MP78730DF

更新时间： 2024-01-28 01:44:29

品牌	Logo	应用领域
芯源 - MPS		光电二极管
页数	文件大小	规格书
11页	415K
描述
Audio Amplifier, 20W, 2 Channel(s), 1 Func, PDSO20, MO-153ACT, TSSOP-20

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MP78730DF 数据手册

MP78730

2 x 20W Class D Stereo

Single Ended Audio Amplifer

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP78730 is a stereo 2 x 20W Class D

Audio Amplifier. It is one of MPS’ second

generation fully integrated audio amplifiers

which dramatically reduces solution size by

integrating the following:

•

2 x 20W Output at V_DD= 24V into a 4Ω load

THD+N = 0.06% at 1W, 8Ω

93% Efficiency at 20W

Low Noise (190μV Typical)

Switching Frequency Up to 1MHz

9.5V to 24V Operation from a Single Supply

Integrated Startup and Shutdown Pop

Elimination Circuit

Thermal and Short Circuit Protection

Integrated 180mΩ Switches

Mute/Standby Modes (Sleep)

Thermally Enhanced 20-Pin TSSOP

Package with Exposed Pad

•

180mΩ power MOSFETs

Startup / Shutdown pop elimination

Short circuit protection

Mute / Standby

•

The MP78730 utilizes a single ended output

structure capable of delivering 2 x 20W into 4Ω

speakers. MPS Class D Audio Amplifiers exhibit

the high fidelity of a Class A/B amplifier at

efficiencies greater than 90%. The circuit is

based on the MPS’ proprietary variable

frequency topology that delivers low distortion,

fast response time and operates on a single

power supply.

APPLICATIONS

•

Surround Sound DVD Systems

Televisions

Flat Panel Monitors

Multimedia Computers

Home Stereo Systems

“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic

Power Systems, Inc.

AAM (Analog Adaptive Modulation) is a Trademark of Monolithic Power

Systems, Inc.

TYPICAL APPLICATION

THD+N vs Output Power

24V, f = 1KHz

REF1

BS1

CH1

INPUT

IN1

SW1

CH1

OUTPUT

MP78730

REF2

BS2

SW2

0.1

CH2

INPUT

IN2

VDD1

CH2

OUTPUT

EN1

EN2

PGND1

AGND1

AGND2

VDD2

PGND2

0.01

0.1

OUTPUT POWER (W)

MP78730 Rev. 1.2

12/13/2007

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

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