MAX6388XS28D7-T

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The MAX6388XS28D7-T is a supervisory circuit commonly used in power management circuits. It provides circuit protection, voltage monitoring and system reset control in a single package. This supervisor is suitable for use in applications such as power-on reset, brown-out reset, watchdog timer and system reset in both battery-operated and AC-powered systems. It features a low supply current of 300nA, a 1.45V to 5.5V supply voltage range and an adjustable timeout feature.

The MAX6388 is a voltage supervisor circuit which can be used to monitor system voltages. The circuit provides a reset output whenever the monitored voltage falls below the threshold voltage, Vth, which is set via an external resistor. The threshold voltage is also known as the reset threshold voltage. This circuit has an open-drain reset output which is released when the monitored voltage rises above the threshold voltage. The reset output can be used to reset microprocessors and integrated circuits in the system applications. The reset output is also capable of driving an external P-channel MOSFET in order to disconnect the power supply from the system. This feature can be used to cut off the power supply during over-voltage or over-temperature conditions.

The MAX6388 also features an adjustable timeout feature which allows users to set the waiting time before the reset signal is released. This is achieved by connecting a resistor between the TIME and VSS pins. The time-out period can be set by using an external resistor and capacitor according to the following formula: T= RC. The time-out period can be set between 20ms to 1.2s. The MAX6388 also features an over-temperature protection (OTP) input which can be used to detect over-temperature conditions in the system. The OTP input is triggered when the temperature exceeds the thermal cutoff temperature (TCT) which is set via a external resistor. This feature provides system protection against thermal cycles that could otherwise cause damage to the system components.

The MAX6388 also features an adjustable power supply voltage monitor which can be used to detect low and high voltage conditions in the system. The power supply voltage monitor has a range between 1.45V and 5.5V which can be set via external resistors. The power supply voltage can be monitored and the reset output can be triggered when the voltage exceeds the programmed voltage range.

The MAX6388 is a high-performance supervisory circuit that is suitable for use in portable, battery-operated and AC-powered applications. It provides over-temperature protection, voltage monitoring, system power disconnect, adjustable threshold voltage and adjustable timeout feature in a single package. This supervisor circuit is capable of detecting low and high voltage as well providing system protection against over-temperature cycles. The MAX6388XS28D7-T is a versatile supervisory circuit that is suitable for use in many power management systems.

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