MAX6888EETE+T

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The MAX6888EETE+T is a high precision, low power supervisor with two reset outputs that are ideal for managing system power-up and power-down sequences and monitoring critical voltages in communications, computing, and consumer systems, classified into PMIC - Supervisors. This integrated circuit provides a reset during power-up and power-down cycles and also has a comparator that can monitor up to four supply voltages for undervoltage or overvoltage conditions. It is characterized by the precision 0.75% tolerance on reset thresholds and a power-up sequencing time of less than 150 ms.

The device monitors two supply voltages and can generate a reset if either of two thresholds are exceeded. The two reset outputs are designed to reset both µP-style and FET-style electronic components. The MAX6888EETE+T is designed to be as small as possible with its tiny 4 mm x 4 mm form factor. The device works over an operating temperature range of -40 °C to +125 °C.

As a supervisor device, the MAX6888EETE+T can monitor a variety of power-supply voltages. The device has two reset thresholds that are programmable from +1.2 V to +4.2 V, with 0.75% accuracy, for both reset outputs. These thresholds define the maximum and minimum voltages at which reset is generated. The on-chip voltage-controlled oscillator (VCO) is programmed by an external capacitor to provide a reset pulse width from 0.2 ms to 2.2 s.

The MAX6888EETE+T operates through a +4.2 V to +18 V logic supply that powers the device\'s low-voltage reset generator and comparator logic, as well as the voltage-controlled oscillator (VCO) and power-on reset generator. This logic supply also powers an active pull-up MOSFET and an active pull-down MOSFET. This pull-up/pull-down pair can be used to control the device\'s two reset outputs. The reset outputs can be forced to an active state by either a logic input or the MAX6888EETE+T processor itself.

The MAX6888EETE+T also has two power-on reset (POR) outputs—one for the digital logic and one for the analog logic—that can be used to reset microcontrollers, DSPs, ASICs, memory, and other devices. The POR delay time is programmed by an external resistor from 0.2 s up to 16.7 s. The device also has a fault-mode input that prevents the reset from being triggered when problems occur with the digital and analog power supplies.

The MAX6888EETE+T is widely used for various application purposes. It is widely used in data-storage devices, such as digital video recorders and hard drives. The device is also commonly used in personal electronic devices, such as cell phones, digital cameras, and PDAs, to provide reset and power-on reset. In larger systems, such as cellular base stations, the device is used to monitor and control critical voltage signals. Additionally, it is used to reset multiple ICs simultaneously, providing the highest degree of foolproof system monitoring.

The MAX6888EETE+T is an important part of any system, as it provides reset and power-on reset signals when necessary. It is also used to monitor up to four supply voltages, ensuring that the system is functioning properly even under various conditions. Its low power, small form factor, and high accuracy make it an ideal choice for many applications.

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