PT7M7809RTEX

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.63V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Base Part Number:	PT7M7809

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Introduction

PT7M7809RTEX is an advanced configurable supervisory circuit designed to provide highly reliable reset and power management in embedded systems. The device supports multiple options ranging from single-level reset to complex multi-level reset schemes as well as wide range of manual/automatic power management modes. In this article, we will provide an overview of the PT7M7809RTEX application fields and its working principle.

Application Fields

The PT7M7809RTEX is suitable for a wide range of applications such as embedded systems, industrial control, medical devices and automotive electronics. Embedded systems: PT7M7809RTEX can be integrated into any system with microcontroller or microprocessor. It is ideal for applications requiring high reliability and protection from power supply transients and processor resets.Industrial Control: PT7M7809RTEX eliminates false resets caused by power supply transients, helping to ensure operational reliability in industrial applications. Medical Devices: PT7M7809RTEX helps to protect against system-lock conditions without the need for extra components.Automotive Electronics: PT7M7809RTEX helps to protect critical automotive electronics from voltage drops or surges while ensuring system stability.

Working Principle

The PT7M7809RTEX is designed to provide comprehensive and highly reliable protection to embedded systems. The device has an advanced reset control logic that can detect and respond to any power anomalies, such as power supply transients, voltage drops and surges. The device\'s reset control logic is composed of a three-phase delay circuit with minimal hysteresis and low power consumption. The reset delay is adjustable and the hysteresis value can be set from 4 to 20ms. PT7M7809RTEX monitors an external power supply and automatically resets the system in case of large voltage changes. It can also detect and respond to any voltage spike within 300mV above the preset threshold. Moreover, PT7M7809RTEX features a wide range of manual/automatic power management modes. All the logic and power devices are designed to be driven by a single, external push-pull signal at a voltage supply of 3.0V to 5.5V. The device is also compatible with a wide range of operating temperature ranges (from -40°C to +85°C).

Conclusion

The PT7M7809RTEX is an advanced configurable supervisory circuit designed to provide highly reliable reset and power management in embedded systems. Its application fields include embedded systems, industrial control, medical devices and automotive electronics. With its advanced reset control logic, it can detect and respond to any power anomalies and provides comprehensive protection to the system. The wide range of manual/automatic power management modes and its compatibility with a range of operating temperature make PT7M7809RTEX an ideal solution for embedded systems.

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