X5043S8I-2.7T2

PMIC - Supervisors are an important component in today’s technology-based world. The X5043S8I-2.7T2 is a supervisor specifically designed to provide over and under voltage protection, in addition to other benefits. Its application fields and working principle are elucidated below.

Application Fields

The X5043S8I-2.7T2 is part of STMicroelectronics’ X5043 range of supervisors and is thus ideally suited to applications within the automotive, industrial and consumer electronics markets. This supervisor is especially suitable for electric vehicle (EV) and hybrid electric vehicle (HEV) applications, as it boasts greater thermal robustness as compared to other commonly used supervisors. It is capable of operating across the -40°C to +150°C temperature ranges and it also features a low-power reset output, which ensures that the EV or HEV can recover and resume operation in the event of a fault.

The X5043S8I-2.7T2 is also suitable for industrial applications where it is needed to protect against overvoltage conditions and short circuit effects. Its built-in incremental delay timer allows the system to be reset after the overvoltage condition has been corrected. This makes it ideal for power supply and data line protection.

Finally, the X5043S8I-2.7T2 is also well suited to consumer electronics applications. Its combination of a low-power reset output, overvoltage protection and incremental delay timer makes it a valuable addition to almost any consumer electronics device.

Working Principle

The X5043S8I-2.7T2 provides a regulated output voltage with an adjustable upper and lower limit. When the voltage exceeds the upper limit or falls below the lower limit, the supervisor will trip and initiate an incremental delay timer. This timer allows for the gradual reset of the system, depending on the configuration of the supervisor. During the reset period, the output voltage remains off. Once the system is reset, the supervisor will cycle through the normal voltage output regulation and begin the process over again.

This supervisor features an externally adjustable ON/OFF threshold, with an adjustable hysteresis. This ensures that the output voltage will remain off until the voltage exceeds a certain limit and then only when it drops below a certain limit. This allows the X5043S8I-2.7T2 to provide robust overvoltage protection, as it ensures that the voltage will never be allowed to exceed its preset upper limit.

In addition to the ON/OFF threshold and hysteresis, the X5043S8I-2.7T2 also features an output voltage control loop. This allows the voltage to be adjusted in order to match the needs of the application. The loop also allows for the adjustment of the slew rate, thus ensuring that the output voltage is smoothly regulated.

Conclusion

The X5043S8I-2.7T2 is an important component within today’s technology-based world. It is can be used to provide over and under voltage protection, as well as adjustable ON/OFF threshold and hysteresis. The supervisor also features an adjustable output voltage control loop, ensuring that the output is suitably regulated. The X5043S8I-2.7T2 is thus ideally suited for applications within the automotive, industrial and consumer electronics markets.