Описание
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 4O 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 2O at 24V
- 4 x 80W into 4O at 24V
- Improves THD+N
- Low Output Impedance
- High-Frequency Response
- Improved Damping of Complex Loads
- Enables Low-Cost Inductors
- Short-to-Battery/GND
- Open/Shorted Load
- Tweeter Detect
- Short-Circuit Protection
- 50V Load-Dump Protection
- Programmable Clip Detection
- DC Offset Detection
- Open Battery/GND Tolerant
- Thermal-Overload Protection
- Thermal Warning Indication
