LM3711XQMM-308/NOPB Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LM3711XQMM-308/NOPB Application Field and Working Principle

The LM3711XQMM-308/NOPB is a Supervisory circuit integrated into a system to detect any changes in the power supply while the operating system is running. This circuit provides the mandated features needed to protect the system from dangerous situations and maintain system stability. LM3711XQMM-308/NOPB incorporates active circuit elements such as voltage monitors, voltage detectors, and voltage regulators that all work together to ensure a secure and stable power supply to the system.

The monitored window of the LM3711XQMM-308/NOPB is adjustable over a ± 4.0 V range for both the Supply Voltage (VCC) and the Battery Backup (VBB) Power Sources. A dedicated VBAT pin allows for the Connection of a VBAT pin to a battery backup power supply. The LM3711XQMM-308/NOPB also features a delay reset which ensures system and battery operational stability.

Operating Principle

The field of the LM3711XQMM-308/NOPB operates on the principle of detecting any sudden fluctuations or changes in the power supply to the system and then responding to those changes according to the set operation rules. For example, if the voltage monitored at the VCC supply (which is available through the On-Chip Voltage Monitor) falls outside the prescribed range, then the LM3711XQMM-308/NOPB will shut down the system and start a reset sequence.

The LM3711XQMM-308/NOPB also has an internal Watchdog Timer that is used for safety purposes, such as the preventing the power supply from dropping below the pre-set voltage levels. If the voltage level at VCC drops below the pre-set level, the Watchdog Timer is activated and the system is reset and restarted with the current settings. The LM3711XQMM-308/NOPB can also detect the presence of a backup battery and switches over to the battery power when VCC drops to below the pre-set value.

The on-chip voltage regulator is also designed to maintain system stability. The voltage regulator is designed to regulate the voltage of the power supply, providing the system with a clean, stable power source. Along with this, the voltage detector is designed to activate a reset sequence when an overvoltage or undervoltage condition is detected to protect the system from dangerous conditions.

Features

The LM3711XQMM-308/NOPB integrated Supervisory circuits provide the following features that are necessary for a safe and secure system:

• Allowing the system to maintain its operational stability and prevent dangerous conditions from occurring.
• Maintains an adjustable window from -4 V to + 4 V.
• On-Chip Voltage Monitor to track the voltage level at VCC.
• On-Chip Voltage Detector with over-voltage or under-voltage trip points.
• Auto-Switches to Battery Backup power supply when VCC goes below the preset value.
• Watchdog Timer is activated when voltage level drops below the pre-set level.
• On-Chip Voltage Regulator to provide a clean and stable power supply.

Conclusion

The LM3711XQMM-308/NOPB Supervisory integrated circuits are designed to provide the system with the necessary protections and stability to maintain a safe and secure operating environment. With its wide range of features, the LM3711XQMM-308/NOPB is well suited for a variety of systems and applications.

The specific data is subject to PDF, and the above content is for reference