X5043S8Z-2.7AT1

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The X5043S8Z-2.7AT1 is a “low-power, digital programmable supervisor with industrial temperature rating from -40°C to +85°C”. It belongs to the ever-so-important category of Power Management IC’s (PMIC) called “Supervisors.” Supervisors are usually the first gadget of protection in electronic systems, and their significance substantially increases in industrial, automotive and medical grade applications - that are designed with the highest safety standards.

The X5043S8Z-2.7AT1 specifically is used to monitor the power supply voltage of a system and provide reset of the system if the supply voltage drops below or rises above specified values. This features makes it ideal for applications where reliable performance is of outmost importance, such as medical grade electronic systems and automotive body systems that need to comply with regulations of various countries.

The device consists of the digital Programmable Supervisor, a supply voltage monitor, a watchdog Timer and a µP reset. It is ideal for use 4-20V input voltage system which is digital adjustable using the supervisor. Moreover, it comes with a Watchdog Timer to reset the microcontroller in case of the program malfunction, or during the development phase. Apart from that, the supervisor also provides fault count history, start-up delay and manual reset.

The working principle of the X5043S8Z-2.7AT1 is simple enough. It continuously monitors the positive supply voltage network and compares it against two user-programmed threshold levels - the assertion level, and the de-assertion level. The output signal (manual reset/device reset pins) then changes according to the status of the input signal. As an example, the output state can be changed from \'assert\' to \'de-assert\' when the input voltage drops below the \'de-assertion\' threshold level.

The X5043S8Z-2.7AT1 is enabled or disabled by the signal at its EN pin. Once it is enabled, a signal is sent to the power input to get the device working. If this signal is absent, then the device may enter sleep mode, thereby reducing power consumption and increasing battery life. It has an operating temperature range between -40°C to +85°C, making it ideal for use in harsh outdoor and industrial conditions.

The X5043S8Z-2.7AT1 is an indispensable PMIC tool, especially for applications that are designed with the strictest safety standards. With its two-level voltage monitoring, watchdog timer and sleep mode, this device is capable of providing the utmost reliability and protection against power supply spikes and dips.

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