MAX6314US44D3+T Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Bidirectional
Reset:	Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	4.39V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-253-4, TO-253AA
Supplier Device Package:	SOT-23-4
Base Part Number:	MAX6314

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Introduction

The MAX6314US44D3+T is an ultra-low-power and highly-integrated supervisor circuit designed to monitor critical supply rails during power-up and power-down operation. This device can provide over-voltage, under-voltage, reverse-battery, and over Temperature protection for a variety of applications, and can be used to protect sensitive on-chip resources in such applications. This device is an efficient way to guarantee the integrity of circuits during power transients and restarts.

Application Field

The MAX6314US44D3+T can be used for securing circuits that require high precision and dependability as it offers continuous monitoring of very small signals such as logic-level shift, bidirectional DC-DC control, and circuit power-down. This device is compatible with many industrial, automotive and consumer applications, and can also be used in medical and military applications. Its high levels of accuracy and durability make it suitable for a wide range of demanding applications. The MAX6314US44D3+T is a perfect fit for monitoring voltage input in any general purpose application. The device’s high current output capability provides a robust protection against external transients. In addition, this device can be used as a backup supervisor for low current applications such as I2C, SPI, UART and more.

Working Principle

The MAX6314US44D3+T is designed to protect the load from over-voltage, under-voltage and reverse-battery conditions. When the power supply voltage reaches a predetermined threshold, the internal comparator triggers and a single output comes on. The comparator provides hysteresis, which prevents frequent on and off cycles while the power stays in the range. The comparator can be set to two levels, one for under-voltage and one for over-voltage.The MAX6314US44D3+T also offers reverse battery protection by detecting if the battery’s positive and negative terminals are connected in the wrong order. In this situation, the MAX6314US44D3+T will turn off the low-side switch to prevent the connected circuit from being exposed to a dangerous reverse-polarity condition.The MAX6314US44D3+T provides an over temperature protection feature. When the device’s operating temperature exceeds the upper limit of the temperature range, the MAX6314US44D3+T will turn off the low side switch to protect the connected circuit from unnecessary heating and damage.

Conclusion

The MAX6314US44D3+T is an ultra-low-power and highly-integrated supervisor circuit with over-voltage, under-voltage, reverse-battery, and over-temperature protection features. This device is the ideal choice for monitoring voltage input in any general purpose application and provides robust protection against power transients and restarts. It offers a high level of accuracy and durability and is suitable for a wide range of industrial, automotive, and consumer applications.

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