MAX98400A Class D Amp with 20W Output, 92% Efficiency, I2C Control, Integrated Boost, 8ms Startup, Full Protection, & 6.5μV Noise for Premium Portable Audio

MAX98400A Class D Amp with 20W Output, 92% Efficiency, I2C Control, Integrated Boost, 8ms Startup, Full Protection, & 6.5μV Noise for Premium Portable Audio

Features

● Wide 8V to 28V Supply Voltage Range

● Single-Supply Operation

● Low EMI: Active Emissions Limiting

● Clipping Limiter

● Low Quiescent Current

● Thermal Foldback

● Thermal and Overcurrent Protection

Applications

● LCD/PDP Televisions

● LCD Monitors

● MP3 Docking Stations

● Notebook PCs

Description

The MAX98400A/MAX98400B Class D amplifiers provide high-performance, thermally efficient amplifier solutions. The MAX98400A delivers 2x20W into 8Ω loads or 1x40W into a 4Ω load. The MAX98400B delivers 2x12W into 8Ω loads.

An integrated limiting circuit prevents output clipping distortion, protects small speakers from transient voltages, and reduces power dissipation.

A thermal-foldback feature can be enabled to automatically reduce the output power at above a junction temperature of +120°C. Traditional thermal protection is also available in addition to robust overcurrent protection.

The ICs operate from a single 8V to 28V supply and provide a high 67dB PSRR, eliminating the need for a regulated power supply. They offer up to 90% efficiency from a 12V supply.

Filterless modulation allows the ICs to pass EN55022B EMI limits with 1m cables using only a low-cost ferrite bead and small-value capacitor on each output.

Both devices feature eight digitally controlled gain settings.

Comprehensive click-and-pop reduction circuitry minimizes noise coming into and out of shutdown.

The MAX98400A/MAX98400B are available in 36-pin and 24-pin TQFN packages, respectively, and are specified over the -40°C to +85°C temperature range.

INFORMATION

Drawing

Our advantage :phones, PDA's, notebook comput.ers

• High quality products --- our offers are 100% new and original, ROHS
• Competitive price --- good Purchase channels with good price.
• Professional service --- strict quality testing before the shipment, and perfect after-sales service after the purchase.
• Adequate inventory --- With the support of our strong Purchasing team,
• Fast delivery --- we will ship the goods within 1-3 working days after the payment confirmed.

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