Automotive four-channel class-D amp with load dump protection

30-12-2016 | Texas Instruments | Power

Texas Instruments’ TAS5414C is a four-channel Class-D audio amplifier designed for use in automotive head units and external amplifier modules. It provides four channels at 23W continuously into 4ohm at less than 1% THD+N from a 14.4V supply. Each channel can also deliver 38W into 2ohm at 1% THD+N. The device uses single-ended analog inputs. The class-D PWM topology of the device provides dramatic improvements in efficiency over traditional linear amplifier solutions. This reduces the power dissipated by the amplifier by a factor of ten under typical music playback conditions.

The device has a built-in load diagnostic functions for detecting and diagnosing misconnected outputs to help to reduce test time during the manufacturing process.

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