MAX6865UK44D2S+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Part Status:	Obsolete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:	40 ms Minimum
Voltage - Threshold:	4.375V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-23-5
Base Part Number:	MAX6865

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PMIC - Supervisors

The MAX6865UK44D2S+T is a chip supervisor, an increasingly popular device in the field of power management integrated circuits. In this article, we will look at the application field and working principle of the MAX6865UK44D2S+T.The MAX6865UK44D2S+T is used for monitoring voltage and temperature to provide protection for controllers, digital signal processors, and microcontrollers. It operates by monitoring the power supply voltage and temperature of the microcontroller. When the voltage or temperature exceeds configured thresholds, the MAX6865UK44D2S+T will generate a reset signal to protect the device from potential damage.The MAX6865UK44D2S+T has an adjustable voltage threshold of 2.6V to 6.8V and an adjustable temperature of -40°C to 125°C. It supports manual and automatic reset functionality and is designed to ensure that the microcontroller has a valid power supply and a safe operating temperature.The MAX6865UK44D2S+T also features a low-voltage lockout protection. This feature enables the microcontroller to enter a low-power mode to conserve power when the power supply voltage drops below a pre-determined level. By preventing the microcontroller from operating at low voltage levels, the MAX6865UK44D2S+T prevents potential damage caused by incorrect operation of the device.The MAX6865UK44D2S+T employs a watchdog timer feature which allows it to generate periodic reset signals. This feature is useful for detecting software hangs or runaway execution and prevents the microcontroller from becoming unresponsive. The MAX6865UK44D2S+T also provides a configurable reset timeout delay, which means it can generate reset signals with adjustable timing.The MAX6865UK44D2S+T also features an overvoltage protection feature which disables the watch dog timer and pulls the reset pin to a low level state it order to stop the microcontroller from malfunctioning due to excessive voltage. Finally, it is also equipped with sleep and power-down mode functionality.The MAX6865UK44D2S+T supports both 5V and 3V logic level and provides EDG3 and EDG4 control pins for enabling and disabling the power-down mode. The device also provides a reset enable pin allowing the MAX6865UK44D2S+T to be disabled by external logic if necessary.In summary, the MAX6865UK44D2S+T is a smart chip supervisor that provides protection for microcontrollers, digital signal processors, and embedded controllers by monitoring voltage and temperature levels and generating reset signals when pre-defined thresholds are exceeded. It also provides protection against excessive voltages and low-voltage locks out, as well as sleep and power-down mode operations. With its high accuracy and reliable performance, the MAX6865UK44D2S+T is becoming increasingly popular in the PMIC market as an effective way of ensuring the safety of embedded microcontrollers.

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