PT7M7803RTEX

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PMIC - Supervisors

PMIC supervisors are specialized ICs designed to provide a wide range of power management and monitoring functions. These devices are used to ensure that system power-up and power-down sequencing is handled correctly and safely, and can also provide over-voltage and error detection and logging. The Texas Instruments PT7M7803RTEX supervisor is an innovative and feature-rich device that offers a high degree of protection for a wide range of applications.

PT7M7803RTEX Application Field

The PT7M7803RTEX is designed to protect microprocessors, ASICs and other sensitive electronic components from power-related events such as over-voltage, current surges, and brownouts. It is particularly suited for applications that need over-voltage protection and monitoring, including consumer electronics, communications systems, servers, disk drives and embedded controllers. It is also suitable for automotive, industrial and avionics application fields.

PT7M7803RTEX Working Principle

The PT7M7803RTEX is a Reset Generator, which generates a reset signal in response to events that exceed predetermined thresholds. Depending on the configuration chosen, this signal can be used to reset the system or limit power consumption of upstream components by halting the power delivery stages. The device includes two dedicated Vin pins, one High Input Voltage (VIN_H) and one Low Input Voltage (VIN_L). If either of these pins exceed their prescribed limits, the PT7M7803RTEX will generate a reset signal to protect downstream components from excessive power.

The reset signal can also be generated by any of the monitored events such as short-circuit, over-voltage and over-temperature, as well as by an external signal on the dedicated mOUT pin. Once an event has triggered a reset, the device will wait for an over-voltage event to reset the system. This ensures that the device can recover quickly from transient faults and protect the system from further damage.

The PT7M7803RTEX is designed to help reduce system power consumption by dynamically adjusting the operating power levels based on channel loading and temperature conditions. It also has programmable Precision Timing and Reset Delay to accommodate certain system requirements. Additionally, the device includes an on-chip temperature sensor to facilitate temperature-based system protection.

Conclusion

The Texas Instruments PT7M7803RTEX is a powerful and feature-rich supervisor IC designed for applications that require advanced power management and monitoring. The device offers over-voltage and error detection and logging, as well as dynamic power level adjustment and system protection from transient faults. It is ideally suited for a wide range of applications, including consumer electronics, communications systems, servers, disk drives, embedded controllers, automotive, industrial and avionics.

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