LM3880MFX-1AB/NOPB

The LM3880MFX-1AB/NOPB is a voltage supervisor integrated circuit (IC) manufactured by Texas Instruments. It is designed to monitor power supply voltages and provide a reset signal to microcontrollers and other digital devices when the supply voltage falls below a specified threshold. This ensures that the system operates reliably and prevents erratic behavior during power fluctuations.

Key Features:

1. Voltage Monitoring: The LM3880 monitors the supply voltage and generates a reset signal when the voltage drops below a predetermined threshold. This is crucial for maintaining the integrity of digital circuits.

2. Adjustable Reset Threshold: The device allows for an adjustable reset threshold, which can be set using external resistors. This flexibility enables designers to tailor the reset voltage to their specific application requirements.

3. Active Low Reset Output: The reset output is active low, meaning it goes low when a reset condition is detected. This output can be directly connected to the reset pin of a microcontroller or other digital logic devices.

4. Fast Response Time: The LM3880 features a fast response time to voltage changes, ensuring that the reset signal is generated quickly when the supply voltage drops, thus minimizing the risk of system malfunction.

5. Low Quiescent Current: The device operates with low quiescent current, making it suitable for battery-powered applications where power efficiency is critical.

6. Temperature Range: The LM3880 is designed to operate over a wide temperature range, making it suitable for various environmental conditions.

7. Package Type: The LM3880MFX-1AB/NOPB is available in a small, surface-mount package (MFX), which is ideal for space-constrained applications.

8. No External Components Required: The device is designed to work with minimal external components, simplifying the design process and reducing the overall footprint of the circuit.

Applications:

• Microcontroller reset circuits
• Power supply monitoring
• Automotive electronics
• Consumer electronics
• Industrial control systems

Electrical Characteristics:

• Supply Voltage Range: Typically operates from 1.5V to 5.5V.
• Reset Threshold Voltage: Configurable based on external resistor values.
• Reset Timeout: The device includes a timeout feature that ensures the reset signal is held low for a specified duration after the supply voltage returns to normal.

Conclusion:

The LM3880MFX-1AB/NOPB from Texas Instruments is a versatile and reliable voltage supervisor that enhances the stability and reliability of electronic systems. Its adjustable reset threshold, low power consumption, and compact package make it an excellent choice for a wide range of applications where voltage monitoring and reset functionality are critical.