MP7770

2 x 45W Stereo Single-Ended

or 90W Mono BTL Class-D Audio Amplifier

MP7770 Rev.1.0

www.MonolithicPower.com

1

12/4/2012

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2012 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

MP7770 is an analog class-D audio amplifier

that can drive either stereo speakers in single-

ended configuration or a mono speaker in a

bridge-tied-load configuration. It is part of

MPS’s family of fully-integrated audio amplifiers

that dramatically reduce footprint size by

integrating:

 100mΩ power MOSFETs

 Startup/Shutdown pop elimination

 Short-circuit protection circuits

The MP7770 is capable of delivering 45W per

channel into 4Ω speaker in single-ended output

structure, or delivering 90W into 8Ω speaker in

bridge-tied-load output structure under 36V

VDD. MPS’s class D audio amplifiers exhibit the

high fidelity of a Class A/B amplifier at higher

efficiencies. The circuit is based on the MPS’s

proprietary variable-frequency topology, which

delivers excellent linearity, fast response time

and operates from a single power supply.

FEATURES

 9.5V-to-36V Operation from a Single Supply

 ±8.5A Peak Current Output

 Output Power at 36V and 10%THD:

- Stereo Single-Ended: 2 x 45W into 4Ω Load,

- Bridge-Tied Load: 90W into 8Ω Load

 THD+N = 0.03% at 1W, 8Ω

 > 90% Efficiency at 10%THD

 Low Noise

 Switching Frequency of up to 1MHz

 Integrated Startup and Shutdown Pop

Elimination Circuit

 Programmable UVP

 Thermal and Short-Circuit Protection

 Output Fault Flag and Thermal Warning

 Integrated Power FETs

 TSSOP28-EP Package with Exposed Pad

on Bottom

 TSSOP28-EPR Package with Exposed Pad

on Top, Please Contact Factory for the

Availability

APPLICATIONS

 DVD Receiver

 Mini Combo System

 Home Theater Systems

 Surround Sound Systems

 Audio Docking or High-Power Sound Box

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Quality Assurance

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

Monolithic Power Systems, Inc.