MC33164P-3RPG Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	--
Voltage - Threshold:	2.71V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device Package:	TO-92-3
Base Part Number:	MC33164

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Introduction

The MC33164P-3RPG is a monolithic device from ON Semiconductor designed for use as an on-chip supervisor in power management integrated circuit (PMIC) applications. Specifically, it is an integrated circuit that provides reset, undervoltage monitoring, and clock supervisory functions to improve the reliability of power supplies and protect against system malfunctions.

Application Field

The MC33164P-3RPG is used in a variety of applications that require reliable power supply protection, such as portable and desktop computers, mobile phones, digital cameras, and automotive applications. It is suitable for use in both single-chip and multi-chip designs, and is compliant with the IEC-61000-4-2 and IEC-61000-4-5 ESD standards, making it suitable for use in high-voltage and high-frequency applications.

Features

The MC33164P-3RPG offers a variety of features that make it ideal for power protection in critical applications. It has a wide input voltage range of 2.7V to 3.4V, perfect for high-voltage and/or high-frequency applications. It also has an extended temperature range of -40°C to +125°C, making it well-suited for extreme temperatures. It also has an adjustable reset threshold of 2.97V to 3.4V, and adjustable voltage hysteresis of 0.25V to 0.4V.

Working Principle

The MC33164P-3RPG monitors its input voltage pin, VIN, and compares it to a preset threshold voltage. If VIN drops below the threshold, a reset signal is sent to the system to initiate a power-on reset procedure. The reset signal is held low until the input voltage returns to above the threshold voltage. The adjustable voltage hysteresis prevents the device from resetting due to voltage fluctuations that are within the acceptable operating range.The MC33164P-3RPG also features an integrated clock oscillator that can be used to monitor the speed of the system clock. If the clock frequency is slower than the set threshold, the device will assert a reset signal to force the system to reboot.

Conclusion

The MC33164P-3RPG is an excellent supervisor device for use in power management applications. It is designed for use in both single-chip and multi-chip designs, and its wide input voltage range, extended temperature range, adjustable reset threshold, and adjustable voltage hysteresis make it an ideal choice for high-voltage and high-frequency applications. Its integrated clock oscillator also allows it to monitor the system clock frequency and initiate a system reset if necessary.

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