MAX6385XS22D2-T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active High
Reset Timeout:	20 ms Minimum
Voltage - Threshold:	2.19V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-82A, SOT-343
Supplier Device Package:	SC-70-4
Base Part Number:	MAX6385

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Introduction

The MAX6385XS22D2-T is a member of the MAX6385X series’ of low-voltage programmable reset supervising circuits, typically used in any application requiring system wide reset. This integrated circuit monitors a single voltage within the specified range, given preselected thresholds of a control signal, VDD. With its low package routing and superior accuracy, the MAX6385XS22D2-T is often used for embedded applications such as cell phones, tablets, and in industrial system used for build monitoring and process control.

Applications

Given their ability to monitor and reset the system, the MAX6385XS22D2-T is used in a wide range of applications. Low voltage applications such as in cell phones and other handheld electronics, require accurate monitoring and reset capability with as less power consumption as possible. With its superb accuracy, low power consumption and low package routing, the MAX6385XS22D2-T is able to fit into any low voltage system in place of a discrete reset supervisor. Additionally, the MAX6385XS22D2-T is also used in a wide range of industrial applications where system wide reset is needed. Process control systems and build monitoring equipment are just two examples of areas where the MAX6385XS22D2-T excels

Working Principle

The MAX6385XS22D2-T works by employing an on-chip voltage monitor to continuously monitor a single capacitor, VDD. When the voltage dips below a preset reset threshold, the RESET pin is pulled low, indicating that a system wide reset is needed. Additionally, the MAX6385XS22D2-T also uses an Activity Monitor to detect the absence of either a digital clock or periodic memory access. When the monitor does not detect any such activity, it pulls the RESET pin low, indicating that a system wide reset is needed. The MAX6385XS22D2-T also has a customizable reset delay and reset timeout feature. This allows the user to configure the Reset pin to remain low for a specific amount of time when a reset is initiated. This helps to ensure that the electronics attached to the RES pin have enough time to be reset. Additionally, the MAX6385XS22D2-T is also programmable upon reset, allowing the user to set the desired reset voltages and monitor the condition of the system after a reset.

Conclusion

The MAX6385XS22D2-T is an integrated circuit designed for low-voltage programmable reset supervising in any application that requires system wide reset. With its low package routing and exceptional accuracy, the MAX6385XS22D2-T is ideal for low power embedded applications such as cell phones, tablets and industrial systems used for process control and build monitoring. It works by continuously monitoring a single capacitor while detecting the presence of either digital clocks or periodic memory access and pulling the RESET pin low when either are absent. Additionally, the MAX6385XS22D2-T also allows for a customizable reset delay and reset timeout feature, as well as programmability upon reset. This makes the MAX6385XS22D2-T an ideal choice for low voltage system wide reset applications.

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