LM809M3X-2.63

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
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 ~ 105°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:	LM809

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Introduction

The LM809M3X-2.63 is a low power, micro-processor supervisor IC that is specifically designed for microcontroller applications. It is one of the Power Management Integrated Circuit (PMIC) Supervisors, a group of integrated circuits that have been designed to control the power distribution in a given system. This device is capable of detecting the supply voltage and providing multiple control signals to monitor and regulate the power state of the system.

Application Field And Working Principle

The LM809M3X-2.63 is used in a variety of applications such as sensor detection, automotive and industrial applications. It is typically used to monitor the main and standby power supplies in a system and to provide a signal when either one of them fails. The device is configured with two threshold voltages, which are used to determine when the power supply needs to be switched off or on.The LM809M3X-2.63 has an extremely low quiescent current making it very energy efficient. It is capable of detecting a low voltage drop, enabling it to detect even very small changes in the supply voltage. It also features an integrated delay counter which is used to postpone the capacitor power up or down. This delay can be set by adjusting the external resistors connected to the device.The device also contains logic circuits to determine whether the standby or main supply is active. It then sends the appropriate control signal to either one of these supplies, allowing them to be activated or deactivated depending on the required power state. When the standby supply is active, a signal is sent to the microcontroller, informing it of the current voltage state.In addition, the LM809M3X-2.63 provides a wide range of protection features such as Brown Out Detection (BOD) and Overtemperature Protection (OTP), providing improved reliability and safety in systems that are prone to power fluctuations.

Conclusion

The LM809M3X-2.63 Supervisor IC is a low power and energy efficient device that is specifically designed for microcontroller applications. It is a powerful PMIC supervisor that is capable of detecting the supply voltage and providing multiple control signals to monitor and regulate the power state of the system. It contains many features that protect the system from power fluctuations such as Brown Out Detection and Overtemperature Protection.

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