S-80928CNPF-G8YTFU

Series:	S-809xxC
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:	20 ms Minimum
Voltage - Threshold:	2.8V
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
The S-80928CNPF-G8YTFU is a positive-voltage supervisor IC designed to offer a number of features to optimize the performance of complex microcontroller (MCU) and microprocessor (MPU) designs. Supervisors are circuits used to monitor power-supply level and provide reset signals to the MCUs and MPUs that are connected to them. They also provide buffered reset outputs to peripherals that are connected to the same power rails.

Application Field
The S-80928CNPF-G8YTFU is primarily used in applications such as standby and low power MCUs and MPUs, where reset sequencing and multiple reset output protection are needed. It is used to ensure that the power supply is stable and the system is kept running normally. It is also used in high-speed logic systems, clock distribution and industrial control systems which need to keep accurate control of their power supplies. The S-80928CNPF-G8YTFU can provide both active-high and active-low reset signals for MCUs and MPUs to prevent any fluctuations in the power supply voltage from causing system malfunctions.

Working Principle
The S-80928CNPF-G8YTFU employs a monitored comparator to detect and report any power supply fluctuations that may occur. This can include any decrease in the supply voltage or any overcurrent. When the monitored comparator detects a voltage or overcurrent condition, it will send a reset signal to the MCU or MPU. This reset signal is also buffered and sent to any peripherals that are connected to the same power rails.

Monitored Input Voltage
The S-80928CNPF-G8YTFU can monitor any supply voltage between 2.5V to 24V. It has input range selection pins which can be used to configure the low and high voltage limits. It can set these limits within a range of 2.5V to 3.2V and 21.5V to 24V respectively. This ensures that the input power supply is not affected by any voltage fluctuation within the designated range. It also has two open-drain outputs which can be used to warn other circuits of a power supply failure.

Timeout Delay Function
The S-80928CNPF-G8YTFU also has an internal timeout delay circuit which is configured with two external resistors. This can be used to give the MCU or MPU more time to restart before sending a reset signal. This is useful when the system needs to cope with higher power supply fluctuations. The timeout delay can be set to values ranging from 200ns to 800ms.

Low Power Consumption
The S-80928CNPF-G8YTFU boasts a very low supply voltage of 0.3V making it suitable for low power systems. In order to reduce any power consumption to a minimum, it also has an internal shutdown function which can be used to disable the monitored comparator and the reset signal. When enabled, the S-80928CNPF-G8YTFU will only consume 0.1uA of current.

Conclusion
The S-80928CNPF-G8YTFU is a positive-voltage supervisor IC which is suitable for standby and low power MCUs and MPUs. It is capable of monitoring and reporting power supply fluctuations. It also has a timeout delay function and a low power consumption of 0.1uA when the internal shutdown function is enabled. The S-80928CNPF-G8YTFU is a powerful and efficient supervisor IC that can be used for a variety of applications.

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