NCV308SN330T1G

Series:	Automotive, AEC-Q100
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:	--
Voltage - Threshold:	3.07V
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SOT-23-6 Thin, TSOT-23-6
Supplier Device Package:	6-TSOP

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Introduction

Power Management Integrated Circuit (PMIC) supervisors are a broad range of integrated circuits that provide a multitude of power management features. One of the most popular in this family of supervisors is the NCV308SN330T1G. This article covers the application field and working principle of the NCV308SN330T1G.

Application Field

The NCV308SN330T1G is used to provide protection and supervision in a wide range of analog, digital and power management applications. In particular, it is ideal for automotive, industrial, and consumer electronics systems. The NCV308SN330T1G integrates an adjustable voltage monitor (AVM) circuit and an adjustable reset circuit with an integrated delay counter. The chip provides a variety of protection features, such as over-voltage protection, under-voltage protection, reverse-current protection, and window-monitored reset. These features provide additional protection to systems and devices that may be subject to abnormal default conditions. The chip also incorporates a wide input voltage range and a wide temperature range, which makes it suitable for various environmental conditions.

Working Principle

The working principle of the NCV308SN330T1G is based on its ability to detect a wide range of input voltages and provide a corresponding reset signal. The chip has an adjustable voltage monitor circuit which determines the upper and lower voltage levels. An integrated delay counter allows the user to adjust the reset time from 0 to 65535 cycles. The chip will detect the input voltage levels, compare them against the user set levels, and generate a reset signal if the input voltage exceeds the upper or lower voltage levels. Afterward, the reset signal is passed through a delay counter before it is finally passed to all external devices connected to the chip. There is also a window monitor function which is activated when the voltage exceeds the upper voltage level, or when the voltage falls below the lower voltage level. This will trigger a reset and shut down any devices connected to the chip.

Conclusion

In conclusion, the NCV308SN330T1G is a popular PMIC supervisor used in a wide range of analog, digital, and power management applications. It provides protection and supervision features such as over-voltage protection, under-voltage protection, reverse-current protection, and window-monitored reset. The chip has an adjustable voltage monitor circuit, an integrated delay counter, and a wide input voltage range, making it suitable for various environmental conditions.

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