MAX6388XS31D1-T

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The MAX6388XS31D1-T is an ideal supervisor for power supply monitoring in power converters and other applications that require supply voltage and overtemperature monitoring. The device integrates a voltage reference and fault output, which takes the hassle out of adding an external reference and fault driver. The single-wire interface eliminates any need of external interrupts, while the programmable thresholds enable flexibility of output logic and tight regulation of power resources without any additional pins.

Features:

• Provides a 4.2V voltage reference output.
• Ability to supply both the output and input directly with a single supply line.
• Operating voltage range of 0V to +4.2V.
• Programmable overtemperature (selectable one-shot or latched reset
• Programmable undervoltage/overvoltage fault trip point.
• Programmable reset trip point.
• Programmable reset time-out period.
• Programmable undervoltage/overvoltage fault timer.
• On-chip LDO regulator.
• Operating temperature range of -40°C to +125°C.

The MAX6388XS31D1-T is an advanced supervisor designed for applications spanning from large server and small PDA to PC boot and embedded micros. This device provides a simple, feature rich solution to monitor battery sources, supply voltages, and temperature within the application, while keeping noise out of the system. It features an integrated voltage reference, overtemperature monitor, voltage and fault protection, programmable VOVP and UVLO trip points, and a programmable duration overvoltage/undervoltage timer.

The device allows for direct connection to a battery source and is capable of working with standard +5V and +3.3V supplies. It has a programmable output that can be used to assert a reset/interrupt signal when a trip point is reached. The undervoltage/overvoltage output plays an important role in protecting against spurious events like short circuit, brownouts, excessive load current, and other fault conditions. It acts as an early warning system and can be used to switch off the power supply before any damage occurs.

It has an integrated Schmitt trigger input, which provides excellent noise immunity. The input voltage range covers 0V to 4.2V, making it compatible with all kinds of power sources, including battery backed-up and 12V system sources. Its advanced features make it ideal for use in telecom, consumer, desktop and industrial grade AC/DC power supplies.

The MAX6388XS31D1-T has a digital soft-start feature. This feature prevents inrush current and over-current conditions during startup, ensuring a slow and smooth start-up without any additional circuitry or components. It also features a programmable reset time-out period. This period can be set from 15 seconds to over an hour, and can be used to protect the system from sudden overload/overvoltage conditions.

The device has a highly configurable and programmable output logic. It can be programmed for reset and interrupt outputs and can be easily configured using a simple serial interface. The self-programmable monitoring thresholds can be changed on the fly. The device has an integrated LDO regulator, which ensures stable operation of the MAX6388XS31D1-T over the entire temperature range.

Overall, the MAX6388XS31D1-T is a feature rich device with an ideal combination of protection logic, programmability, and run-time flexibility. Its integration of a voltage reference, fault output, and programmable thresholds makes it a perfect solution for voltage, temperature and fault monitoring in power supplies, converters, and any application that requires reliable, clean, and consistent power. Moreover, its single-wire interface and on-chip LDO regulator add flexibility and reduce related system costs.

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