X5083S8I-4.5AT1

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PMIC - Supervisors - X5083S8I-4.5AT1 Application Field and Working Principle

PMIC supervisors are integrated circuits that combine power management functions and monitoring/protection functions. They are widely used in monitored systems to ensure system stability and reliable operation. The X5083S8I-4.5AT1 is a PMIC supervisor from Texas Instruments that is suitable for system power-on monitoring, reset monitor and control, and SMI (system hardware power management interface) control.

The X5083S8I-4.5AT1 is used in many applications due to its high-performance features and superior reliability. It is widely used in battery-operated systems, industrial process control systems, network infrastructure equipment, and consumer electronics. It is also well-suited for handheld and portable computing systems, automotive electronic systems, and medical electronic systems.

The X5083S8I-4.5AT1 integrates a low-dropout 3.3V linear regulator, an adjustable reset threshold voltage monitor, a push-pull power-on reset output, and an SMI control interface.

The low-dropout 3.3V linear regulator of X5083S8I-4.5AT1 ensures the desired output voltage for the monitored system in the presence of varying power supply voltages. It operates over a wide input voltage range and has an ultra-low quiescent current to maximize battery life. The adjustable reset threshold voltage monitor allows the user to monitor the supply voltage level and can generate a reset when the monitored voltage goes below the programmed threshold. This is useful in systems that require a power-on reset (POR) after power-up, so that the system can ensure a known initial state.

The push-pull power-on reset output is used to reset other peripherals in the system, such as bit-slice microcontrollers, by bringing their power-on reset pins to a logical low state. This helps ensure proper system start-up and fast recovery from system glitches. The SMI output of the X5083S8I-4.5AT1 can act as a system controller to provide a hardware power management interface between the processor and the rest of the system.

In addition, the X5083S8I-4.5AT1 features an overvoltage and overtemperature protection to ensure system reliability. The overvoltage feature protects the system against abnormal system operating conditions, while the overtemperature protection ensures that the device will not be damaged by any sudden temperature increase.

In summary, the X5083S8I-4.5AT1 is a reliable and robust PMIC supervisor from Texas Instruments that is well-suited for system power-on monitoring, reset monitor and control, and SMI control in a variety of application fields. It provides efficient performance, easy integration, and high system reliability with its adjustable reset threshold voltage monitor, push-pull POR output, SMI interface, and overvoltage and overtemperature protection.

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