MAX6444US23K+

Series:	--
Part Status:	Obsolete
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:	2.313V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-253-4, TO-253AA
Supplier Device Package:	SOT-143-4

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Introduction

The MAX6444US23K+ is a low-cost, ultra-low power supervisor with an architecture optimized for battery systems or systems using a distributed system power architecture. MAX6444US23K+ provides circuit protection and system reset control, overvoltage protection (OVP), overcurrent protection (OCP), and battery voltage monitoring. This PMIC-Supervisors offers a wide range of features, making it suitable for various applications, such as mobile and automotive systems, communication systems, industrial systems, and more.

MAX6444US23K+ Applications

The MAX6444US23K+ is suitable for a wide range of applications including mobile and automotive systems, communication systems, industrial systems, battery system applications, distributed system power architecture and low power systems. Mobile and automotive systems applications typically require the supervisor device to monitor the main system power. The MAX6444US23K+ includes overvoltage and overcurrent protection, as well as a reset control and monitoring circuit for the main system power.Communication systems commonly require the MAX6444US23K+ to protect against voltage transients and ensure a reliable operating environment for various communications devices, such as Ethernet switches, routers, etc. The MAX6444US23K+ provides overvoltage and overcurrent protection, as well as a reset control and monitoring circuit for the main system power.Industrial systems typically demand the MAX6444US23K+ to provide protection against voltage transients and overcurrent. The MAX6444US23K+ provides overvoltage protection and overcurrent protection, as well as a reset control and monitoring circuit for the main system power.The MAX6444US23K+ is especially suitable for battery systems, distributed system power architecture and low power systems. Battery systems applications typically require the MAX6444US23K+ to monitor and protect against overvoltage and overcurrent conditions. The MAX6444US23K+ provides overvoltage protection and overcurrent protection, as well as a reset control and monitoring circuit for the battery voltage.In distributed system power architecture applications, the MAX6444US23K+ can be used to monitor, protect and reset multiple power rails. The MAX6444US23K+ provides overvoltage protection and overcurrent protection, as well as a reset control and monitoring circuit for each power rail.Low power systems typically require the MAX6444US23K+ to monitor and protect the main system power, as well as any additional low power rails. The MAX6444US23K+ provides overvoltage protection and overcurrent protection, as well as a reset control and monitoring circuit for the main system power.

MAX6444US23K+ Working Principle

The MAX6444US23K+ operates on a simple "regulation and protection" principle. The device monitors the system voltage and, when needed, acts to reset the system or lower the voltage by turning off the load.The MAX6444US23K+ includes an on-chip comparator which monitors the battery voltage. The voltage is compared to two reference voltages, the overvoltage and the undervoltage level. When the voltage falls outside of the programmed reference voltages, a reset signal is generated, causing the system to be reset.The MAX6444US23K+ also features an integrated overcurrent monitor which compares the current against a programmed level. When the current exceeds the programmed level, a reset signal is generated, causing the load to be disconnected.In addition to voltage and current monitoring, the MAX6444US23K+Features on-chip voltage and temperature sense amplifiers, allowing the system to be monitored at any point along the power rail or battery line.The MAX6444US23K+ also features an adjustable timer, allowing the device to automatically reset the system after a given period of time.

Conclusion

The MAX6444US23K+ is an ultra-low power supervisor with a wide array of features which make it suitable for a variety of applications. It provides overvoltage and overcurrent protection as well as an on-chip reset mechanism and monitoring circuit. The MAX6444US23K+ also features voltage and temperature sensing, and an adjustable timer for resetting the system after a predetermined period of time. With its low power consumption and wide range of features, the MAX6444US23K+ is an ideal choice for powering and monitoring a variety of system types.

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