MCP1317T-25LE/OT

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 High
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.5V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-23-5

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Introduction to MCP1317T-25LE/OT

The MCP1317T-25LE/OT is a supervisory circuit from Microchip Technology Inc. It is part of their Power Management and Interface- PMIC family. It is designed to provide reliable and robust system power management by protecting the system from power supply transients, brownouts, and other anomalies. This supervisory circuit is ideal for embedded systems, automotive, industrial and other high-reliability applications.

Overview of MCP1317T-25LE/OT

The MCP1317T-25LE/OT is a low drop-out and low power supervisory device. It comes in a space-saving TSSOP-8EP package, making it suitable for applications requiring a small and low-power system supervisor. The device supports voltage monitoring of up to five power sections, thus providing system designers with additional design flexibility. It also features an internal comparator, selectable reset or interrupt output and voltage monitoring range from 1.8V to 5.3V. The device also integrates an adjustable RC oscillator with a cycle time of 2 to 256ms, allowing the device to respond to supply irregularities in a very short time. It also features an integrated 1.75V voltage reference allowing for better voltage accuracy across multiple supply levels. The device is fully characterization and carries a wide temperature range from -40C to +85C.

Applications of MCP1317T-25LE/OT

MCP1317T-25LE/OT can be used in a variety of applications including:

• Automotive systems
• Telecommunications, networking and wireless devices
• Multi-voltage logic and memory systems
• Audio / Video Applications

Apart from these, the device is also suitable for battery-powered products, UPS systems and other high-end industrial and communications applications.

Working Principle of MCP1317T-25LE/OT

The MCP1317T-25LE/OT operates on a basic principle of voltage detection and alerting for system irregularities. The voltage monitoring pins are connected to the different sections and the device actively monitors the voltages of each of these sections. The integrated comparator in the device compares the voltages with internally stored threshold values and if the voltage deviates from the threshold values, a reset, interrupt or warning signal is sent out. This alert can be used to trigger other system signals or to interrupt the processor waiting for the voltage to return to an acceptable level. The adjustable RC oscillator also helps ensure that the device responds to supply irregularities in a timely manner.

Conclusion

The MCP1317T-25LE/OT is a low power and space-saving supervisory circuit from Microchip Technology Inc. It is ideal for high-reliability applications requiring a robust power management circuit. The device is feature-rich, supporting up to five voltage monitoring pins and an adjustable RC oscillator with a range of 2 to 256ms. It can be used in a variety of applications, including automotive systems, telecommunications, networking, wireless devices and battery-powered products. The device also features a voltage reference and an integrated comparator to monitor and alert for system irregularities.

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