S-80122CLPF-JIHTFU Integrated Circuits (ICs)

Series:	S-801
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Voltage Detector
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	130 ms Minimum
Voltage - Threshold:	2.2V
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-80122CLPF-JIHTFU is a voltage supervisor PMIC (Power Management Integrated Circuit). It integrates a low power voltage monitor and an N-channel MOSFET in a single package to provide a robust, low cost power management solution. The S-80122CLPF-JIHTFU is used in battery powered and other low power devices, such as cell phones, remote controls, digital cameras, and many other consumer and industrial applications.

Features

The S-80122CLPF-JIHTFU has several features that make it an ideal choice for power management solutions. It has an adjustable voltage threshold of 1.8V to 4.7V and a programmable reset delay from 0.3s - 3.3s. The device also has a push-pull or open-drain reset output options and a low operating current of 300nA typical. Other features include low voltage reset and voltage under-voltage detection.

Application Field

The S-80122CLPF-JIHTFU is suitable for a variety of applications. It is a popular choice for use in portable devices, such as mobile phones, digital cameras, and remote controls, where low power consumption and a small package size are of primary concern. It is also widely used in motor control systems, where it provides protection against overloads and under-voltages.

Working Principle

The S-80122CLPF-JIHTFU works by monitoring the voltage level of a power rail and triggering a reset signal if the voltage falls below a specified threshold. When the voltage drops below the preset level, the device uses its N-channel MOSFET output to assert a low logic signal, which can then be used to initiate a system reset. The reset signal is active until the power rail voltage reaches the threshold voltage again.

Conclusion

The S-80122CLPF-JIHTFU is a popular low power PMIC that provides many features, including adjustable voltage thresholds, reset delay options, low voltage reset, and under-voltage detection. It is suitable for many applications, including small portable devices, motor control systems, and other low power devices. Its working principle is relatively simple, monitoring the power rail voltage and generating a reset signal if the voltage falls below the predetermined threshold.

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