S-80934CNMC-G84T2G

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power Management Integrated Circuit (PMIC) is a device used to control and manage the power system for a range of applications. PMICs are used to protect, control and monitor electrical power supplies. They are used in almost any type of application, from automobiles to aerospace, from renovation to new construction. Among PMICs, Supervisors are designed to monitor and control processor voltage and frequency by detecting critical system conditions such as under-voltage, over-voltage, power failure, etc., and then sending out reset signals or alarming signals to prevent corruption of system operation. In this article, S-80934CNMC-G84T2G supervisor will be used as an example to illustrate its application field and working principle.

S-80934CNMC-G84T2G supervisor, developed by Seiko Instruments Company, is an extremely low voltage supervisor designed for systems with power supply from 2.5V to 16V. Its detection voltage range covers from 0.9V to 5.3V with adjustable accuracy within ±3%. It has a watchdog timer (WDT) to detect theprocessing disorder, and then reset the system. Besides, it features power on reset (POR), low voltage reset (LVR), RDSELV adjustment and active high/low CPU control signal output. This supervisor can be used in computer, workstation, audio and TV system, industrial instrument, robotics, communication and other applications.

The working principle of S-80934CNMC-G84T2G supervisor is relatively simple. First, the differential amplifier in the module monitors the voltage level at power input or preset level with adjustable accuracy. When the system power is below the monitored voltage or level, the LVR output will be activated. Additionally, the watchdog timer has a period prescaler, which can adjust its output period so that it can restarts the system when an overload or system disorder such as code or stuck occurs. Then, the WDT output is enabled, and the POR output is disabled. When the power level is higher than the preset limit, the POR output will be enabled. Besides, the RDSELV pin can be adjusted to reset voltage level as desired, and the active high/low control signal output can provide hardware shutdown control.

In conclusion, S-80934CNMC-G84T2G Supervisor is a PMIC device that can be used in computer, workstation, audio and TV system, industrial instrument, robotics, communication and other applications. It is designed to monitor and control processor voltage and frequency by detecting critical system conditions. Its main feature includes WDT, POR and LVR. Besides, the RDSELV and active high/low control signal output make it possible to adjust the reset voltage level as desired and provide hardware shutdown control. Therefore, this PMIC supervisor is a great choice for application engineers if the system power supply is from 2.5V to 16V.

The specific data is subject to PDF, and the above content is for reference