MAX6385XS20D2-T

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Power Management Integrated Circuits (PMICs) are optimized for providing optimal power management for all kinds of circuits, and represent the most efficient and cost-effective solutions for a variety of applications and use cases. PMICs, when compared with discrete solutions, not only take up less board area but also minimize critical routing, thus enabling simplified and cost-effective solutions. Different PMICs, when compared with each other, come with varying features and specifications depending on the kind of use case they are focusing on.

One such PMIC is the MAX6385XS, the MAX6385XS20D2-T to be precise. This PMIC is a member of the MAX6 series Supervisory circuits, manufactured by Maxim Integrated. Supervisory circuits are responsible for system level monitoring, and provide substantial help in ensuring the design integrity of a system. Being a supervisor, the MAX6385XS20D2-T is used to reset the system when pre-defined power thresholds are exceeded. It is also used to reset systems in the event of power loss.

The MAX6385XS20D2-T is a low-cost, low-power reset supervisor that can be used in a wide range of applications. With a reset timeout period of 2.2 seconds, it is well suited for applications such as battery-powered devices and other high-performance systems where prevention of false resets is paramount. It features power-on reset (POR) and dynamic reset delay, providing superior protection for dynamically changing supply voltages. The MAX6385XS20D2-T also features a precision voltage comparator, manual reset functionality, precise timeout reset functionality and active-low reset output.

In terms of power threshold, the MAX6385XS20D2-T features an ASSERT Threshold Voltage of 1.63V, a DEASSERT Threshold Voltage of 1.36V, and a reset timeout period of 2.2 seconds. It has an increasing active-low reset (RES_L) output, which goes low when either the POR or manual reset are asserted. Additionally, it has an active-high manual reset input, a POR active-low output, and a supply voltage range of 1.4V to 3.6V.

In terms of application fields, the MAX6385XS20D2-T can be used in embedded systems, automotive systems, general communications, battery powered systems, power supplies, industrial sequencing and monitoring systems, and in systems that require monitoring of fault conditions.

The MAX6385XS20D2-T working principle is fairly straightforward. When the power source voltage drops below the DEASSERT Threshold Voltage (1.36V) or goes above the ASSERT Threshold Voltage (1.63V), the device’s internal comparator detects the deviation and initiates a reset sequence. This reset sequence begins by asserting the RES_L output and continues until the power source voltage returns to the ASSERT Threshold Voltage. During this reset sequence, the watchdog timer is reset, thus preventing false resets from occurring.

The MAX6385XS20D2-T is an ideal device for providing system-level protection due to its low-power consumption, increased reliability and accuracy. The combination of power-on reset and dynamic reset delay help ensure quick and accurate system-level reset operations. The device also features a precision voltage comparator, manual reset functionality, precise timeout reset functionality and active-low reset output.

In conclusion, the MAX6385XS20D2-T is a great device for providing system-level monitoring and reset operations. Its combination of power-on reset and dynamic reset delay make it highly useful for providing precision reset operations in a wide range of applications.

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