MAX6795TPTD4+

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The MAX6795TPTD4+ is an enhanced supervisory circuit designed to monitor the supply voltage (VCC) at the integrated circuit (IC) level. This device supports advanced power system requirements and provides a comprehensive monitoring solution for the most demanding applications such as automotive, industrial, medical, and aerospace.

The MAX6795TPTD4+ is a three-pin device that includes a precision voltage monitor, a watchdog timer and a RESET signal. The voltage monitor feature monitors the supply voltage (VCC) level and performs a reset of the system when the VCC falls below the user-programmable threshold voltage. The watchdog timer ensures that an active or malfunctioning system is periodically reset over time, preventing unpredictable or unstable processing activity.

The MAX6795TPTD4+ device features a user-programmable RESET signal. The RESET output is active low and asserts to reset all devices in the system. The RESET condition has a minimum assertion period and will remain asserted until the supply voltage (VCC) reaches its programmable reset threshold, which is typically 0.4V higher than the voltage monitor threshold.

MAX6795TPTD4+ is primarily used in applications where precise system monitoring and power management functions are required. The device has a wide operating voltage range from 1.2V to 5.5V to support various system supply voltages. The overvoltage protection feature provides added protection against system malfunction by monitoring voltage levels exceeding the specified limits and triggering an appropriate response such as system reset or power management control.

The MAX6795TPTD4+ is suitable for demanding applications such as automotive, industrial, medical, and aerospace. The device offers a number of features to address the most stringent system requirements, such as advanced thermal protection, overvoltage protection, inrush monitoring, and power source sequencing. The device also provides precision voltage and timing control with user-programmable reset and watchdog timer thresholds.

The voltage monitor feature of MAX6795TPTD4+ allows the user to monitor the VCC level. The device is designed with an internal delay circuit that delays reset until the supply voltage (VCC) has settled to a stable level after power-up. The watchdog timer of MAX6795TPTD4+ ensures that an active or malfunctioning system is periodically reset over time, preventing unpredictable or unstable processing activity.

The MAX6795TPTD4+ has a user-programmable RESET signal. The RESET output is active low and asserts to reset all devices in the system. The RESET condition has a minimum assertion period and will remain asserted until the supply voltage (VCC) reaches its programmable reset threshold. This feature provides additional reliable system protection when the system enters an unexpected state, such as a brown-out condition or prolonged system crash.

The device features an overvoltage protection function that shuts down the power supply when the supply voltage (VCC) exceeds the specified limit. This prevents damage to the system due to an accidental user mistake or short-circuit. The inrush protection circuit provides another layer of system protection by limiting the supply voltage (VCC) inrush current during system power-up.

In addition to its monitoring and protection functions, the MAX6795TPTD4+ also features a power sequencing feature which ensures that all devices in the system are properly powered up and running in the correct order. This feature is especially useful for advanced applications such as automotive, industrial, medical, and aerospace, where proper power sequencing is critical to system operation.

In conclusion, the MAX6795TPTD4+ is an enhanced supervisory circuit designed for accurate system monitoring and protection. It provides a comprehensive monitoring solution for the most demanding applications, including automotive, industrial, medical, and aerospace. The device offers a wide operating voltage range and a number of user-programmable settings for reliability and flexibility. In addition, the device includes overvoltage protection, inrush protection, and power sequencing functions for added protection and reliability.

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