EV7782DF-00A

50W Class D Mono Bridged

Audio Amplifier Evaluation Board

EV7782DF-00A Rev. 1.2

www.MonolithicPower.com

1

1/11/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2006 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV7782DF-00A is the demo board for the

MP7782, a Mono, 50W Class D Audio

Amplifier. It is one of MPS’ second generation

of fully integrated audio amplifiers which

dramatically reduces solution size by integrating

four 180mΩ Power MOSFETs in a space

saving TSSOP20 Package. It utilizes a full

bridge output structure capable of delivering

50W into 6Ω speakers. As in all other MPS

Class D Audio Amplifiers, this device exhibits

the high fidelity of a Class AB amplifier with an

efficiency of 90%. The circuit is based on the

MPS’ proprietary variable frequency modulation

topology

(patents

pending)

that

delivers

excellent PSRR, fast response time and

operates on a single power supply.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Supply Voltage

9.5 to 24

V

FEATURES

• 90% Efficiency

• Typical THD+N = 0.06% @ 1W

• 9.5V to 24V Supply Voltage Operation

• Full Bridge Output Drive

• 4 Integrated 180mΩ Switches

• Turn-On / Turn-Off Click and Pop Suppression

• Integrated Short Circuit Protection

• Integrated Thermal Shutdown

• Mute / Standby Mode

• Thermally Enhanced TSSOP20F Package

with Exposed Pad

APPLICATIONS

• Flat Panel LCD and PDP Displays

• Notebook and Multimedia Computers

• Televisions

• Home Stereos

• DVD and VCD Players

• Game Devices and Systems

• Subwoofer

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

Monolithic Power Systems, Inc.

EV7782DF-00A EVALUATION BOARD

100

10

1

0.1

0.01

0.1

1

10

100

OUTPUT POWER (W)

EV7782-EC01

(L x W x H) 4.0” x 3.5” x 1.0” (10.1cm x 8.8cm x 2.5cm)

Board Number

MPS IC Number

EV7782DF-00A

MP7782DF