MAX6383XR26D3-T

Series:	--
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:	140 ms Minimum
Voltage - Threshold:	2.63V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SC-70-3
Base Part Number:	MAX6383

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Introduction

The MAX6383XR26D3-T is a polymeric Positive Temperature Coefficient (PTC) supervisor. It protects sensitive analog or digital circuits from damage caused by overcurrent events. Specifically, thePTC supervisor detects an excessive amount of current flowing through the PTC protection device and then issues a hard reset or asserts an output signal to indicate the fault. This device has a wide range of applications in the industrial, automotive, and consumer markets.

Applications

The MAX6383XR26D3-T is well suited for applications where overcurrent protection is needed. It is designed to be used in motor control, storage drive, and any other situations where current needs to be monitored and controlled. It can also provide low-cost, contact-protection in applications where traditional fuse protection is not feasible. Generally, this device can provide any application with overcurrent protection ranging from a few mA to more than 5A.

Features

The MAX6383XR26D3-T has several features that make it a great choice for overcurrent protection. It has an adjustable trip current that allows it to be tailored to the specific needs of the application. It also has a wide range of operating temperatures, from -40°C to +125°C. In addition, this device is self-resetting, allowing it to protect from fast overcurrent events. Finally, it has a low quiescent current, which makes it an excellent choice for low-power, battery-powered applications.

Design

The MAX6383XR26D3-T is designed to be housed in a surface-mount SOIC-8 package. It includes all the necessary components to provide overcurrent protection, including the sensing element and reset circuitry. The sensing element is based on the NTC thermistor, which is designed to detect an electrical overload. When an overload is detected, the device trips and a reset circuit forces the output low.

Working Principle

The working principle of MAX6383XR26D3-T is based on the NTC thermistor. When an overload is detected, the resistance of the thermistor increases, causing a voltage drop across the thermistor. This voltage drop begins a reset signal that forces the output of the device low. The reset signal is generated until the overload is removed or until the thermistor cools down. The device can then reset itself and return to its normal operation.

Conclusion

The MAX6383XR26D3-T is an excellent overcurrent protection solution for a variety of applications. It is well suited for low-power, battery-powered applications due to its low quiescent current. It is also notable for its adjustable trip current and its wide range of operating temperatures. Finally, its self-resetting feature makes it an ideal choice for fast overcurrent events.

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