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reference designMP7751GF

Monolithic Power Systems MP7751GF

2X20W Stereo BTL Fix Frequency Class D Audio Amplifier Evaluation Board

Overview

TopologyBuck Converter
Input voltage5-26 V
Switching frequency260-360 kHz
Output 11.8 A
IC revision1.0

Description

The EV7751-F-00A is the evaluation board for the MP7751, a 20W stereo BTL Fix Freuquency Class D Audio Amplifier. It is one of MPS’ products of fully integrated audio amplifiers which dramatically reduce solution size byintegrating the following:

• 240mΩ power MOSFETs

• Startup / Shutdown pop elimination

• Short circuit protection circuits

• Advanced EMI performance

The MP7751 utilizes Bridge Tied Load output structure capable of delivering stereo 20W into 8Ω speakers. It features in automatic shutdown function which c an save power in battery-used system. The PLIMIT function is useful for limiting total output power by simply adjust a DC reference voltage at PLIMIT pin. MPS Class D Audio Amplifiers exhibit the high fidelity of aClass A/B amplifier at high efficiency.

Features

  • 20W Stereo BTL Output at VDD = 18V into 8Ω loads
  • 9.5W Stereo BTL Output at VDD = 12V into 8Ω loads
  • Better than 90% Efficiency at 9.5W x 2 and VDD=12V with 8Ω load, Stereo
  • Low Noise (120μV Typical)
  • 5V to 26V Operation from a Single Supply

Typical applications

  • Home Theater
  • Active Speakers
  • TV
  • DVD Receiver

More information

Products

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Order Code
Data­sheet
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Status
Product series
L(µH)
ISAT,10%(A)
ISAT,30%(A)
IR,40K(A)
IRP,40K(A)
RDC max.(mΩ)
fres(MHz)
Size
Version
SamplesAvailability & Sample
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744770122
SPECWE-PD SMT Power Inductor, 22 µH, 5 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance22 µH
Saturation Current @ 10%5 A
Saturation Current @ 30%6.5 A
Rated Current4.6 A
Performance Rated Current5.8 A
DC Resistance35 mΩ
Self Resonant Frequency12 MHz
Size1280 
VersionStandard 
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