Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	20 ms Minimum
Voltage - Threshold:	3.08V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23

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Introduction

APX803S05-31SA-7 is an advanced, low cost, high performance PMIC-Supervisor which solutions the needs of system protection by providing power on reset (POR) voltage monitoring, power fail monitoring, real time backup / restart, and precision under-voltage protection (UVLO) using 0.8V ~ 5.5V input. It is used primarily in digital systems including desktop, network, industrial and automotive applications such as PCs, servers, switches and routers, industrial control systems and automotive electronics.

Features

APX803S05-31SA-7 offers a wide range of features designed to enhance the safety and reliability of the system: • Power on reset (POR) voltage monitoring: The APX803S05-31SA-7 monitors the system’s power supply voltage for under-voltage and over-voltage conditions, providing an indication that reset is to be performed. • Power fail monitoring: The APX803S05-31SA-7 detects system power failure and triggers a reset in order to prevent any malfunction or data corruption. • Real time back-up / restart: The APX803S05-31SA-7 provides real time back-up in the event of a power failure and restarting the system if needed. • Precision under-voltage protection (UVLO): The APX803S05-31SA-7 provides under-voltage protection using 0.8V ~ 5.5V input, which is in line with the needs of a digital system.

Application Field

APX803S05-31SA-7 is an ideal choice for applications requiring power on reset, power fail monitoring, real time backup and restart or precision under-voltage protection. Its wide range of features makes it suitable for a variety of applications in digital systems. Such applications include home and office PCs, servers, switches and routers, industrial control systems, automotive electronics, and any other system which requires reliable power supply.

Working Principle

The APX803S05-31SA-7 works by monitoring the system’s power supply voltage for under-voltage and over-voltage conditions. It will then trigger a reset if any such conditions occur. The real time back-up and restart feature works by providing power to the system even in the event of a power failure, ensuring continuity of operation. The precision under-voltage protection works by providing protection against voltages below 0.8V, preventing any malfunction or data corruption.

Conclusion

The APX803S05-31SA-7 is an ideal solution for applications requiring power on reset, power fail monitoring, real time backup and restart, or precision under-voltage protection. Its wide range of features makes it suitable for a variety of applications in digital systems. Its ease of implementation and high cost effectiveness makes it a great choice for any system which requires reliable power supply.

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