MAX6385XS34D5-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Part Status:	Obsolete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:	280 ms Minimum
Voltage - Threshold:	3.4V
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 to PMIC - Supervisors

Power management integrated circuits (PMICs) are devices which are used to provide power control and protection functions for electronic systems, such as computers and mobile phones. They are essential components that ensure reliable functioning of these systems. Supervisors are a type of PMIC which are specially designed to monitor the status of integrated circuits and also are responsible on providing vital power-on-reset circuits and system reset. This article will focus on the application field and working principle of a PMIC supervisor - the MAX6385XS34D5-T.

Applications

The MAX6385XS34D5-T is a Supervisor which is designed to monitor the supply voltage, and emit a reset signal whenever the voltage falls below or exceeds a set threshold. It is perfect for applications such as:

• Server and enterprise systems
• IP phones
• Home gateways and routers
• Networking and telecom applications
• Data storage systems
• Industrial control systems and embedded applications

The MAX6385XS34D5-T is a low-power device that provides low-cost and reliable system reset and power monitoring function. It has wide range of operating voltage (1.8V to 5.5V) and can handle current up to 5A. It is also AEC-Q100 Grade 0 qualified and supported with high operating temperature range (-40°C~125°C).

Working Principle

The MAX6385XS34D5-T operates by monitoring its own power-supply line (VCCIN pin). It constantly evaluates the voltage present on the line and uses a comparator to check if the voltage on the line exceeds or falls below a certain threshold. According to the data sheet the preset threshold is 2.0V (which is adjustable with two external resistors R1 and R2) . In normal operating conditions, if the voltage on the supply line VCCIN rises/falls above/below the preset threshold then the MAX6385XS34D5-T product emits reset signal to ensure system stability & data integrity. In most applications, this reset signal is directly routed to the processor reset pin, causing it to reset and restart the system.

Conclusion

In conclusion, PMIC supervisors like the MAX6385XS34D5-T are essential components in most electronic systems, providing power monitoring and reset capabilities. With it\'s wide range of operating voltage and high operating temperature range, the MAX6385XS34D5-T is suitable for a variety of applications such as server and enterprise systems, IP phones and data storage systems. Furthermore, it\'s low power requirements, make it a cost-effective and reliable component when used within a system.

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