MAX13301 is a 4-channel automotive Class D audio amplifier from Maxim Integrated Products. It provides up to 80W at 10% THD+N per channel into 4Ω when operating from a 24V supply. The device includes integrated diagnostics to check for output short circuits, output over-current, and thermal overload.
The MAX13301 is a four‑channel Class D audio amplifier designed for automotive applications. It delivers up to 80 W per channel at 10 % THD+N into 4 Ω from a 24 V supply, features a fixed 26 dB gain, and offers ten programmable switching frequencies between 300 kHz and 750 kHz. The device includes I²C control with four programmable addresses, on‑board diagnostics, and extensive protection such as short‑circuit, thermal overload, and 50 V load‑dump protection.
Typical applications include car stereos, rear‑seat entertainment units, active loudspeaker systems, and radio head units. Ordering information and an evaluation kit are provided, and the part is qualified to AEC‑Q100 standards in a 48‑pin TSSOP‑EPR package operating from –40 °C to +125 °C.
| Output Power | 80 W per channel into 4 Ω at 10 % THD+N |
|---|---|
| Supply Voltage | 24 V |
| Switching Frequency Range | 300 kHz–750 kHz (10 steps) |
| Efficiency | up to 90.5 % |
| Operating Temperature | -40 °C to +125 °C |
| Package | 48‑Pin TSSOP‑EPR |
| Gain | 26 dB |
| I2C Addresses | 4 programmable addresses |
| Load‑Dump Protection | 50 V |
| Short‑Circuit Protection | Enabled |
The MAX13301 can deliver up to 80 W per channel into a 4 Ω load at 10 % THD+N.
The device can be programmed to four different I²C addresses.