S-80824CNPF-B8JTFU

Series:	S-808xxC
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Voltage Detector
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	--
Voltage - Threshold:	2.4V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	4-SMD, Flat Leads
Supplier Device Package:	SNT-4A

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Introduction to S-80824CNPF-B8JTFU

S-80824CNPF-B8JTFU, also known as the System Supervisor/Power Monitor, is a power management integrated circuit (PMIC) device developed by Renesas Electronics. It is a single-channel system supervisor which is designed to protect systems against under-voltage and over-voltage conditions. This device is suitable for applications such as microprocessors, digital signal processors, and telecom communication systems, where voltage monitoring and system reset features are required.

Application Field of S-80824CNPF-B8JTFU

The system supervisor S-80824CNPF-B8JTFU comprises three fundamental functional blocks, namely a precision Voltage Comparator, a Power-On-Reset (POR) generator, and a watchdog timer (WDT). These devices are used to monitor certain voltage thresholds in electronic systems, to accurately detect system power on/off timing, and to ensure proper system functioning. The voltage comparator of the S-80824CNPF-B8JTFU is mainly used for monitoring supply or operating voltages, which are essential for proper system operation. The comparator can detect both under-voltage (UVLO) and over-voltage (OVLO) conditions. The POR function can detect low voltage supply variations during system reset, ensuring accurate system power-on/off timing. The watchdog timer ensures system integrity and proper system functioning by generating reset pulses at predetermined intervals.The S-80824CNPF-B8JTFU can be used in various applications including microprocessors, digital signal processors, and telecom communication systems, because of its reliable voltage monitoring and system reset capabilities. The device also finds application in automotive electronics, which require precise voltage monitoring for safety critical components. This device can also be used for providing functional alarm operation in servers or set-top boxes.

Working Principle of S-80824CNPF-B8JTFU

The precision comparator of the S-80824CNPF-B8JTFU monitors the supply or operating voltage levels. When the monitored voltage crosses the predetermined threshold levels, the comparator generates an appropriate logic signal simultaneously with a fast response time, which can be used to detect and respond to over-voltage or under-voltage conditions. An internal reference voltage is used to ensure accurate and repeatable responses, thus providing reliable voltage monitoring. The POR generator constantly monitors the power supply voltage levels. When the supply voltage drops below a predetermined level, the POR generator triggers the reset signal, thus ensuring accurate system power-on/off timing. The watchdog timer feature of the device is used for monitoring system operating conditions. If the watched event does not occur within the predetermined time interval, the watchdog trigger is activated and a reset is initiated. The reset prevents system malfunction due to any unexpected conditions, thus providing system integrity and accuracy.

Conclusion

The S-80824CNPF-B8JTFU is a system supervisor/power monitor and is mainly used in microprocessors, digital signal processors, and telecom communication systems, due to its accurate voltage monitoring and system reset features. It ensures power supply under-voltage or over-voltage protection, accurate system power-on/off timing, and system integrity through watchdog timer monitoring. The device also finds application in automotive electronics, and can be used for providing functional alarm operation in servers or set-top boxes.

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