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4x80W (4ohm) / 2x160W (2ohm) aus 12mm x 6mm MAX13301
#1
Krankes Teil, guckst du hier:

http://www.maximintegrated.com/datasheet...p/id/7428/

Kann gesampled werden, beim Preis von 20$@1k sollte man aber nicht mehr als 2 "bestellen".

Zitat:The MAX13301 combines four high-efficiency Class D amplifiers with integrated diagnostic hardware for reliable automotive audio systems, and delivers up to 80W at 10% THD+N per channel into 4Ω when operating from a 24V supply.

The internal diagnostics evaluate each channel's output impedance to check for shorts across the outputs, to the battery, or to ground. The I²C interface allows the system to query critical device parameters such as device temperature and output clipping. The device is programmable to four different I²C addresses.

The audio amplifiers feature single-ended analog inputs with a common negative input. The MAX13301 has a fixed gain of 26dB.

The Class D amplifier has 10 programmable switching frequencies between 300kHz and 750kHz.

The BTL outputs are protected against short circuits and thermal overload. The outputs can be configured as a 2-, 3-, or 4-channel amplifier. The device provides 50V load-dump protection, and is offered in the thermally enhanced, 48-pin TSSOP-EPR package operating over the -40°C to +125°C temperature range.
  • High Output Power (10% THD+N)
    2 x 160W into 2Ω at 24V
    4 x 80W into 4Ω at 24V
  • 2 Channels Can Be Paralleled
  • Feedback After the Filter
    Improves THD+N
    Low Output Impedance
    High-Frequency Response
    Improved Damping of Complex Loads
    Enables Low-Cost Inductors
  • 102dB SNR
  • Low 0.04% THD+N
  • 70dB PSRR
  • On-Board Diagnostics
    Short-to-Battery/GND
    Open/Shorted Load
    Tweeter Detect
  • Protection and Monitoring Functions:
    Short-Circuit Protection
    50V Load-Dump Protection
    Programmable Clip Detection
    DC Offset Detection
    Open Battery/GND Tolerant
    Thermal-Overload Protection
    Thermal Warning Indication
  • Four-Address I²C Control Interface
  • Low-Power Shutdown Mode
  • Up to 90.5% Efficiency
  • -40°C to +125°C Ambient Operating Temperature
  • 48-Pin TSSOP-EPR (Top Side Exposed Pad) Package
  • AEC-Q100 Qualified