SM72240MF-4.63/NOPB

Series:	SolarMagic™
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	100 ms Minimum
Voltage - Threshold:	4.63V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-23-5
Base Part Number:	SM72240

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Introduction

A Power Management Integrated Circuit (PMIC) is an integrated circuit (IC) designed to manage power sequences and regulate power supply voltages. Supervisors, one of the types of PMICs, are designed to protect other components in an application from abnormal conditions such as extended high voltage, extended low voltage, and over-current. SM72240MF-4.63/NOPB is a specific type of supervisor IC from Texas Instruments, specially designed to protect sensitive circuitries in applications requiring a low quiescent current, low standby power draw, and wide range of operating voltages.Last but not least, this article will discuss the applications and working principles of SM72240MF-4.63/NOPB supervisor IC.

Applications of SM72240MF-4.63/NOPB

The SM72240MF-4.63/NOPB is designed to protect sensitive circuitries from extended voltage, extended current, and over-temperature conditions. It does this by monitoring the voltage at the input pin of the IC, and providing an appropriate warning if it exceeds the specified limits. In this way, it ensures that the voltage levels are kept within safe boundaries, protecting the circuitries from damages.The SM72240MF-4.63/NOPB is capable of operating at a wide range of operating voltages, ranging from 2.7V to 5.5V. This means that it can be used in many different types of circuitries and applications, including smart phones, medical devices, industrial equipment, and so on.The SM72240MF-4.63/NOPB has a low quiescent current, as well as a low standby power draw. This makes it ideal for applications that require a low power draw, such as battery-powered devices. Furthermore, its low voltage threshold makes it suitable for applications where a low threshold voltage is required. Finally, the SM72240MF-4.63/NOPB has a very fast reset time, which makes it suitable for applications with short exposure duration to over-voltage/over-current conditions.

Working Principle of SM72240MF-4.63/NOPB

The SM72240MF-4.63/NOPB is designed to monitor the voltage at the input pin and to provide an appropriate warning if it exceeds the specified limits. To do this, the IC contains a voltage detector circuit which compares the voltage at the input pin to a voltage reference. If the voltage exceeds the specified limits, the voltage detector circuit will trigger an alarm.The SM72240MF-4.63/NOPB also contains a Power-On Reset (POR) circuit which monitors the voltage at the device’s input pin during power-up to confirm that the voltage levels are within the specified limits. If the voltage levels are not within the specified limits, the POR circuit will halt power-up until the voltage levels are brought back within the specified limits.In addition, the SM72240MF-4.63/NOPB also contains a Thermal Shutdown (TDS) circuit, which monitors the temperature in the device and automatically shuts down the device if the temperature exceeds the specified limit. This ensures that the device is not damaged due to overheating.Finally, the SM72240MF-4.63/NOPB also contains a Catch Diode circuit which protects the device from reverse current flow. This ensures that the device is not damaged due to reversed current flows.

Conclusion

In conclusion, the SM72240MF-4.63/NOPB is a supervisor IC specifically designed by Texas Instruments to protect sensitive circuitries in applications that require a low quiescent current, low standby power draw, and a wide range of operating voltages. Its applications range from smart phones and medical devices to industrial equipment. It is capable of monitoring the voltage at the input pin and providing appropriate warnings if the voltage exceeds specified limits, in addition to monitoring temperature levels to prevent any damage due to overheating. It also contains a Catch Diode circuit to protect itself from reverse current flows.

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