This reference design is based on the TAS2505-Q1: which is a low-power Class-D digital audio amplifier with analog: digital: and mixed input capabilities. This design shows TAS2505-Q1 as suitable for automotive cluster and eCall applications by showcasing the device's ability to run on a single 5-V supply. Two external circuits examples show how open load detection can be added to the amplifier's native fault detection: which includes the ability to detect short to ground: short to power: short between terminals: and over-temperature.