SP809EK-L-2-3/TR

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Power management integrated circuit (PMIC) is a commonly used device in today’s electronics. It is used to provide an integrated power solution for a variety of embedded system applications. Among the various PMICs, supervisors are the most common components. Among these supervisors, the SP809EK-L-2-3/TR is an advanced supervisor for power management applications. This article will discuss the application field and working principle of the SP809EK-L-2-3/TR supervisor.

The SP809EK-L-2-3/TR supervisor is designed for high temperature operation. It features an operating temperature range of -40°C to +125°C. It can be used on a wide range of systems, including automotive, industrial and consumer applications. It is also designed to work with a wide range of voltage supplies, ranging from 3.0 V to 5.5 V.

The SP809EK-L-2-3/TR supervisor is designed to provide an integrated power solution for embedded systems. It includes two voltage monitoring and reset circuits, each of which consists of an input voltage detector and a reset circuit. In addition, the device includes an adjustable threshold reference voltage source for setting the start and stop thresholds of the monitored voltage range.

The voltage monitoring and reset circuits of the SP809EK-L-2-3/TR supervisor are configured to guard against undervoltage and overvoltage conditions. The device has two programmable reset options, one for indicates an overvoltage condition and one for indicating an undervoltage condition. When either of the overvoltage or undervoltage conditions is detected, a reset signal is generated to alert system designers and take corrective actions. The reset signal will also be triggered when the system\'s supply voltage drops to 0V or rises to VDD.

The SP809EK-L-2-3/TR supervisor also features integrated watchdog timer functions. These functions are enabled by inputting an enable signal to the timer enable pin. The watchdog timer can be programmed to generate a reset signal after the system has not received any valid inputs within a given period of time. This can be used to protect the system from malfunctioning due to stuck conditions or power supply problems.

The SP809EK-L-2-3/TR supervisor also includes an integrated power-on reset (POR) circuit. This circuit provides a low voltage reset signal, independent of the system\'s power supply voltage. This reset signal is generated when the power supply voltage falls below the specified threshold. The POR circuit can also be used to generate an external reset signal, by connecting an external reset circuit to the device.

In summary, the SP809EK-L-2-3/TR supervisor is a highly integrated power management solution. It features two voltage monitoring and reset circuits, adjustable threshold voltage sources, and an integrated watchdog timer. It can also generate external reset signals through the POR circuit. The device is designed for high temperature operation, and is suitable for a wide range of system applications.

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