MAX6753KA29/V+T

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The MAX6753KA29/V+T is a multichannel supervisors intended for monitoring multiple power supplies in a variety of computers, data storage products, industrial, test, and office automation equipment. This supervisor functions as a power-on reset supervisor, logic level voltage detector, supply voltage sequencer, power fail comparator, and supply voltage reporting device. It is particularly suited for monitoring multiple identical supplies for application such as redundant power supplies.

The MAX6753KA29/V+T belongs to the category of PMIC – Supervisors. PMIC or Power Management Integrated Circuit is a semiconductor integrated circuit composed of a number of specific building blocks along with mixed-signal and other components for regulating, converting and controlling power in many different types of systems. Power management circuits are typically used to manage power in a wide variety of systems ranging from consumer devices and laptops to space satellites and large servers.

The MAX6753KA29/V+T employs a combination of open-drain outputs and programmable logic level inputs to provide a power management solution on one chip. It monitors up to four independent supplies, one positive and one negative supply, each having up to two thresholds. It has a reset turn-on delay or reset output active time that can be programmed by two external resistors. It is easy to configure, requiring only three digital block inputs and two power supply pins. It also features a programmable time start-up delay for compatibility with slow-start controllers.

The main features of MAX6753KA29/V+T are: four independent supply voltage monitor channels with an open-drain output that allows for monitoring four different supply voltages, each one with 1 undervoltage/overvoltage threshold; programmable reset output active time range from 6ms to 65.3s; on-chip voltage reference, reference voltage that is adjustable above and below the monitor voltage; programmable reset start-up delay, system can be configured to delay reset outputs for a time period; and low voltage consumption, active current is only 12.5μA.

In the application field of MAX6753KA29/V+T, it can be used for multiple power supply monitoring, such as redundant supply monitoring in communication systems, power fail detection, voltage monitoring and voltage sequencer, processor supply supervisory and general logic level and logic gate supervisory. It is mainly used in computers, data storage products, industrial, test, and office automation equipment, and other systems requiring multiple supply voltage monitoring.

In terms of the working principle of MAX6753KA29/V+T, it utilizes the principle of open drain output and programmable logic level input to detect and monitor up to four independent supplies, including positive, negative and ground. When the supply voltage is no longer in the normal operating range, or when power-on reset is needed, the device outputs high level to reset the processor or other circuits. In addition, it can also provide system Designers with adjustable reset outputs that can span a wide range of reset active times.

In addition, the MAX6753KA29/V+T also provides telecommunication power fail monitoring, allowing system designers to monitor the presence of 24V, 48V, or -48V supplies. The logic level input pins allow the device to detect external voltage levels, allowing for more flexibility in application. The reset output can also be activated if the active inputs are not enabled within a programmable time period.

The wide range of features of MAX6753KA29/V+T makes it an ideal device for power supply monitoring in various computer systems, allowing system designers to minimize circuit board space and reduce system cost. Its ability to monitor multiple supplies with a single chip makes it a good choice for cost-sensitive applications.

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