MAX6702RKA+

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The MAX6702RKA+ PMIC - Supervisors is an advanced system management IC that combines a wide range of features not available on traditional supervisor chips. The MAX6702RKA+ provides complete power-system management with a built-in real-time clock. It is designed to maintain system power management, monitor system for various conditions, and log system activity in a wide range of applications.

The MAX6702RKA+ is a power-managing supervisor IC designed for monitoring, protecting and controlling system power supplies. It protects the system from transient overvoltage and undervoltage conditions by providing power-on reset, brown-out reset and manual reset. Additionally, it monitors temperature and signals a reset when the temperature rises to a predetermined limit.

The MAX6702RKA+\'s state-of-the-art features include a built-in low power 32.768kHz real-time clock and frequency accurate to 10ppm or better. This clock can be used to time-sync system events such as system shutdown or reboot. The clock time can be set with the on-board trimming capability. In addition, it can be synchronized with an external reference clock using either a single-ended or differential clock signal.

The MAX6702RKA+ provides an enhanced system monitor that monitors four voltages and one temperature. It can detect power supply undervoltage and overvoltage for four rail voltages. The integrated temperature sensor can monitor system temperature. Once the temperature exceeds the temperature limit as set by an internal register, the MAX6702RKA+ will issue a reset signal and the system can be led to an emergency state.

The MAX6702RKA+ also provides a programmable input/output port that allows the external source to feed an interrupt signal to the chip. This can be used for various interrupt-driven program functions such as powering-on/off of peripherals, setting alarms, and logging system activities. Other features include programmable voltage thresholds, a wide supply voltage range (2.7V to 5.5V) and a functional 5V-tolerant I/Os.

The MAX6702RKA+ provides an integrated "Event" logger that can log system events such as system restart, power up/down, temperature alarm, etc. The MAX6702RKA+ also provides an on-chip 32Kb EEPROM that can store the logged events. The logged events can then be retrieved at a later time for review.

To ensure reliable system operation, the MAX6702RKA+ is designed to include a power failsafe circuit that will save the logged event to the EEPROM even if the system power fails, thus giving engineers a full log of system activity.

In summary, the MAX6702RKA+ PMIC - Supervisors provides complete power management, monitoring and control for a wide range of applications. It incorporates energy-efficient and flexible features including clock and system monitoring, temperature monitoring, reset control, power failsafe circuit, event logger and 5V-tolerant I/Os.

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