SP690TCN-L/TR

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A PMIC supervisor is an integrated circuit used to supervise the power supply in a system. The SP690TCN-L/TR is a such a supervisor device with specific application fields and a specific working principle.

The SP690TCN-L/TR is used for motherboards and embedded applications. Its main function is to protect the system against power brown-out conditions. Its target applications are distributed power systems that require reliable power supply, such as PCs and embedded industrial applications.

It is designed to provide a high degree of accuracy and power supply stability for mission-critical applications. The SP690TCN-L/TR features five LDO regulator outputs, two push-pull outputs, two comparators, system reset, absolute and differential voltage monitoring, temperature monitoring and selectable reset and power-on voltage thresholds.

The SP690TCN-L/TR includes a programmable delay on power-on reset, as well as a watchdog timer, which can be used to detect any system or code malfunction in real-time.

As far as the working principle behind the SP690TCN-L/TR, the device starts regulating the power supply and detecting power-on reset conditions as soon as it receives an input voltage. It is designed to monitor the input voltage continuously and activate the system reset when the input voltage falls below a predetermined threshold.

The SP690TCN-L/TR also provides temperature monitoring, to provide an extra layer of protection from extreme temperatures. The device is designed to detect when the ambient temperature exceeds the predetermined threshold, and activate the system reset if necessary.

The five LDO regulator outputs are adjustable and can provide either 1.8V or 3.3V. They are used to provide precise voltage regulation to the device under test and can be used to power critical peripherals, such as disk drives, memory and processors.

The two push-pull outputs are used to provide signals to peripherals, enabling them to control system power, for example to turn on a fan or switch a power supply on and off. The two comparators are designed to provide accurate and reliable power supply-on and power-off signals.

In summary, the SP690TCN-L/TR is a highly accurate and reliable power supply supervisor, designed for mission-critical applications such as PCs and embedded industrial applications. Its features include five LDO regulator outputs, two push-pull outputs, two comparators and temperature monitoring, as well as a programmable delay on power-on reset and a watchdog timer.

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