MAX6314US28D4+T

Series:	--
Packaging:	Strip
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Bidirectional
Reset:	Active Low
Reset Timeout:	1.12 s Minimum
Voltage - Threshold:	2.8V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-253-4, TO-253AA
Supplier Device Package:	SOT-143-4
Base Part Number:	MAX6314

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Introduction

MAX6314US28D4+T is a PMIC (Power Management Integrated Circuit) - Supervisors product offering voltage and temperature monitoring in a single chip. It is a part of MAX6314 product family, which is one of the most trustworthy and highly dependable supervisors with 5-pin SC70 package. This device provides system administrators with independent control of multiple supervised voltages and can reduce board space by two-thirds with its reduced footprint.

Application Field

The application field of MAX6314US28D4+T is quite wide, it can be found for use in consumer electronics, robotics, smart grids, industrial and medical devices, as well as automotive, automotive-adjacent, and other non-automotive industries. MAX6314US28D4+T provides dual monitoring of the system’s supply voltage and temperature. As such, this device ensures stability and reliability of power systems, serves as a watchdog for applications, and improves system safety. It also provides benefits such as reset timeout watchdog, extended temperature range and supply voltage monitoring range, low quiescent current, improved accuracy and protection, and a 5-pin SC70 package which reduces board space by two-thirds. The MAX6314US28D4+T is ideal for applications and industries that rely on maximum accuracy and reliable operation such as:

• Industrial systems
• Infotainment systems
• Automotive applications such as automotive engine control and advanced driving assistance systems (ADAS)
• Medical devices
• Robotics
• Smart grids and energy efficient systems

Features

The MAX6314US28D4+T offers a variety of features for optimal performance and operation. These features include:

• Supply Voltage Monitor and Reset Output with Hysteresis
• Under Voltage and Over Voltage Detection
• Extended Temperature Range −40°C to +125°C
• Input Voltage Monitoring Range of 2.6V to 5.5V
• Two Integrated Digital Temperature Indicators with Hysteresis
• Differential Temperature Detect Test Mode
• BiCMOS Technology with Enhanced Accuracy
• Low Quiescent Current of 4μA (Typ)
• Reset Timeout Watchdog
• 6-Pin SC70 Packaging

Working Principle

The MAX6314US28D4+T works based on the different operating thresholds which have been set by the user. The supervisor monitors both supply and temperature voltages for user-defined high and low set points. The MAX6314US28D4+T has a hysteresis band around the Low Voltage Detection Level (LVDL) Voltage Trip Point and different temperature thresholds. The reset output is activated when either the input voltage is outside the user-defined low or high voltage trip point range or when the temperature is outside the user-defined low or high temperature trip points. The MAX6314US28D4+T includes a Reset Timer watchdog. The Reset Timer is a pulse-width (PW) timer that helps prevent false reset signals due to device startup glitches. It causes an assertion at the end of the pulse period if a reset has not been cleared. This helps in avoiding lockup scenarios that may occur due to glitchy signals. The MAX6314US28D4+T is powered by a biCMOS technology which offers better accuracy in comparison to traditional technologies. The biCMOS technology further extended the input voltage range of the device up to 5.5V which makes it suitable for various applications. Moreover, this device has a low quiescent current of 4μA, which eliminates the need for heat sinks or other cooling apparatuses.

Conclusion

The MAX6314US28D4+T is a PMIC - Supervisors device offering voltage and temperature monitoring with a 5-pin SC70 package and low quiescent current. It is ideal for applications that require extended temperature range, supply voltage monitoring range, and improved accuracy and protection system. The reset timeout watchdog helps in avoiding lockup scenarios due to glitchy signals and the device is suitable for various applications due to its wide input voltage range.

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