MP7740

15W Class D Mono

Single Ended Audio Amplifer

MP7740 Rev. 0.9

www.MonolithicPower.com

1

9/22/2009

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2009 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP7740 is a mono 15W Class D Audio

Amplifier. It is one of MPS’ products of fully

integrated audio amplifiers which dramatically

reduces solution size by integrating the

following:

250mΩ power MOSFETs

Startup / Shutdown pop elimination

Short circuit protection circuits

The MP7740 utilizes a single ended output

structure capable of delivering 15W into 4Ω

speakers. MPS Class D Audio Amplifiers exhibit

the high fidelity of a Class A/B amplifier at high

efficiencies. The circuit is based on the MPS’

proprietary variable frequency topology that

delivers excellent linearity, fast response time

and operates on a single power supply.

FEATURES

• THD+N = 0.05% at 1W, 8Ω

• Low Noise (103µV Typical)

• Switching Frequency Up to 1MHz

• 9.5V to 36V Operation from a Single Supply

• Integrated Startup and Shutdown Pop

Elimination Circuit

• Thermal and Short Circuit Protection

• Integrated Power FETs

• Pin Compatible with MP7720

• Available in Tiny 8-Pin SOIC Package

APPLICATIONS

• Portable Docking Stations

• Surround Sound DVD Systems

• Televisions

• Flat Panel Monitors

• Multimedia Computers

• Home Stereo Systems

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

Monolithic Power Systems, Inc.

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

Systems, Inc.

TYPICAL APPLICATION

+

AUDIO

INPUT

OFF ON

MP7740

SW

BS

PGND

VDD

PIN

EN

NIN

AGND

8

6

5

7

1

4

2

3

0.01

20

0.02

0.05

0.1

0.2

0.5

1

2

5

10

60m

200m

1

5

20