MAX6383XR40D1-T

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The MAX6383XR40D1-T is an industry-leading PMIC (Power Management Integrated Circuit) that provides a rich set of capabilities in order to guarantee continuous reliability and optimal performance in a variety of applications. Being part of the Supervisors (Voltage Detectors, Voltage Monitors and Reset ICs) family, it enables designers to save board space, reduce development time and ultimately lower power consumption.

The MAX6383XR40D1-T belongs to a family of low-power, high-accuracy,regulatedsupply voltage supervisors designed to monitor the power supply voltage with accuracy and precision. This device is available in the reliable XR40 package and provides two threshold voltage options. The upper and lower threshold levels are then fixed internally. It can detect a power failure as soon as it occurs, sending a reset signal to the system.

The MAX6383XR40D1-T integrates a powerful watchdog timer, allowing for resetting the control ICsthrougha reset signal at periodic intervals to avoid potential malfunctions. This feature ensures high system reliability, preventing the system from locking up, regardless of the application.

Thanks to its wide array of features, this device is ideal for non-critical applications such as power supply voltage monitoring and reset in PCs and mobile devices. This device can also be used in systems, applications, and batteries that require short-circuit and over voltage protection, as well as supply voltage monitoring, reset and power-on reset signals.

At the core of the MAX6383XR40D1-T’shighaccuracy lies a voltage regulator and two comparators. The comparator’s output is connected to a voltage regulator providing a reference voltage to both comparators: the upper comparator and the lower comparator. When the output voltage of the regulator rises above the upper threshold level or falls below the lower threshold level, the comparator’s output is triggered, signaling the system.

These comparators also monitor current draw by controlling the voltage regulator’s voltage to ensure a stable operating voltage. The system is further protected from sudden power surges and drops by a latching pull-up transistor. The latching transistor is connected to the supply voltage’s ground line. When the supply voltage drops below the lower threshold voltage, the transistor is activated, and the circuit is reset. When the voltage rises again, the transistor automatically disengages, allowing the circuit to return to its normal state.

The MAX6383XR40D1-T’s power saving design is based on the adaptive power saving technology. This feature becomes active when the input voltage is within the system\'s specified range, automatically reducing the power consumption by up to 82%. When the input voltage is out of range, the device consumes less than 3 μA. Furthermore, the device has a power-on reset time of typically 5 ms, making it faster than other similar supervisors on the market.

For applications that require monitoring of multiple voltages, the MAX6383XR40D1-T features a configurable UVLO threshold, which allows the device to be set up to monitor up to three voltage levels. The device also has an optional manual-reset input. This feature allows the system to manually reset the supervisor in the event of an unexpected shutdown while preserving the system architecture.

The MAX6383XR40D1-T is designed to meet the design requirements of RoHS-compliant, compact systems. It can operate with an input voltage range of 1.65V to 5.5V and with an operating temperature range of -40°C to +85°C. This ensures reliable and robust system operation in a variety of environments and applications.

In summary, the MAX6383XR40D1-T is a versatile PMIC (Power Management Integrated Circuit) that belongs to the Supervisors family. It integrates a powerful watchdog timer, a wide array of features, and advanced power saving technology. It is suitable for non-critical applications such as power supply voltage monitoring and reset in PCs, mobile devices, and other systems, as well as for battery protection. It can also be used for overvoltage protection, as well as for reset and power-on reset signals.

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