MAX6388XS34D5-T

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PMIC, or Power Management Integrated Circuit, is a specialized component that is used to provide power and current regulation for various electronic systems including mobile devices and embedded systems. The MAX6388XS34D5-T is a Low-Voltage Reset and Watchdog Supervisory IC from Maxim Integrated. It is designed for monitoring supply voltages for microprocessor, ASIC, or FPGA-based systems.

Overview

The MAX6388XS34D5-T is an ideal component to provide all of the supervisory functionalities that are necessary in next-generation board designs. It\'s capable of monitoring two supply rails and contains a watch dog timer with a large selectable timeout range (from 256ms to 255.9s). Additionally, it provides adjustable reset thresholds for both outputs. The device integrates an accurate voltage reference (1.95V ±1%) for monitoring the accuracy of the 1V, 0.75V, and 0.6V rails and detecting brownout conditions, and an independent output reset pin to speed up the reset process.

Application Field

The MAX6388XS34D5-T has a wide variety of applications. It\'s ideally suited to protect and monitor 5V, 3.3V, 2.5V, and 1.8V microprocessor,ASIC, or FPGA-based systems. It is typically used in server applications, embedded systems, medical devices, IoT devices, consumer electronics and other applications that require reliable power and current regulation. Additionally, thanks to its reset cycle of less than 500ns, it is suitable for hard-real-time and fast logical operation systems.

Working Principle

The MAX6388XS34D5-T works as a supervisor device, by providing power and current regulation for electronic systems. The device monitors two supply rails and has adjustable reset thresholds for both outputs. In addition, it contains a watch dog timer (WDT) with a wide selectable timeout range (from 256ms to 255.9s). With its built-in voltage reference (1.95V ±1%), the MAX6388XS34D5-T is capable of accurately monitoring the accuracy of the 1V, 0.75V, and 0.6V rails and detecting brownout conditions that would cause the system to crash or misfunction.

When any of the monitored power supply voltages drops below the preset reset trip point, the MAX6388XS34D5-T will generate a reset pulse to initiate a power supply reset. Additionally, it provides an independent output reset (IOR) pin to speed up the reset process. Furthermore, the device has a selectable pull-up resistor on the WDT output pin to hold the IOR high until the monitored system has completed its power-up reset.

Finally, the MAX6388XS34D5-T also offers a wide reset output pulse width range (200 ms to 2 s), adjustable by an external capacitor, for servers and other low-power applications.

Conclusion

The MAX6388XS34D5-T from Maxim Integrated is a low-power reset and watchdog supervisor IC. It is capable of monitoring two supply rails and contains a wide selectable timeout range (from 256ms to 255.9s). Additionally, it has an integrated voltage reference (1.95V ±1%) to detect brownout conditions, and a selectable pull-up resistor on its watchdog timer output pin to speed up the reset process. This integrated device is ideally suited to monitoring and resetting a wide variety of microprocessor, ASIC, and FPGA-based systems.

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