This document is an application note about the STA50X series of DDX high efficiency output stages, describing the pin descriptions and features of the products.
The document provides a detailed description of the STA50X digital power family, covering various models including the STA500, STA501A, STA502A, STA503A, and others. It outlines the pin configurations for different variants within the series.
Key sections include descriptions of control pins such as PWRDN, TRI-STATE, CONFIG, FAULT, and TH_WAR, detailing their logic values and operational states. The note also explains power supply requirements, including GND connections (GND_sub, GND_Clean, GND_Reg) and voltage supplies (Vdd, VL, VecSign), along with the correct power-on sequence to prevent damage.
The FAULT pin activates when the junction temperature exceeds 150°C.
The FAULT pin activates when the power supply voltage drops below 7V.
The minimum overcurrent limit for the STA501 is 3.5A.