LM3880MF-1AB

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LM3880MF-1AB

Supervisory Circuits

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  • Mfr.부분 #LM3880MF-1AB
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사양

개요

Description

The LM3880MF-1AB is a voltage supervisor or reset IC designed to ensure reliable operation in electronic systems. It monitors supply voltages and provides a reset signal when the voltage falls below a predetermined level, thus preventing erroneous operation in microcontrollers and other digital circuits. This IC typically features a low voltage threshold, which can be set through an external resistor divider, allowing for flexibility in different applications.
The LM3880MF-1AB operates with a wide input voltage range, making it suitable for various power supply configurations. It offers fast response times, ensuring that the reset signal is activated promptly during power fluctuations. The device also includes features like open-drain output and a built-in pull-up resistor option, which simplifies circuit design.
Common applications include automotive electronics, consumer electronics, and industrial systems, where maintaining the integrity of data and system stability is critical during power transitions. Overall, the LM3880MF-1AB is an essential component for enhancing the reliability of electronic devices.

Features

The LM3880MF-1AB is a voltage supervisor and reset circuit designed for microcontrollers and digital systems. Key features include:
1. Voltage Monitoring: It monitors supply voltages and provides an active low reset output when the voltage falls below a predetermined threshold.

2. Adjustable Threshold: The reset threshold voltage can be set using external resistors, allowing for flexibility in various applications.

3. Fast Reset Response: The device offers a fast response time to ensure that the microcontroller is reset promptly during power-up or brownout conditions.

4. Integrated Delay: An integrated delay timer prevents false resets due to transient conditions.
5. Wide Operating Voltage Range: It operates over a wide voltage range, making it suitable for different power supply levels.
6. Low Power Consumption: The device is designed for low power usage, which is essential for battery-operated devices.
7. Small Package: The LM3880MF-1AB is available in a compact surface-mount package (MSOP-8), facilitating space-constrained designs.
These features make the LM3880MF-1AB ideal for applications in consumer electronics, automotive, and industrial systems.

Package

The LM3880MF-1AB is packaged in a 5-lead SOT-23 surface mount package.

Pinout

The LM3880MF-1AB is a voltage supervisor with a pin count of 8. Its primary functions include monitoring power supply voltages and providing a reset signal when the supply voltage falls below a preset threshold. This device is commonly used in microcontroller applications to ensure proper operation during power-up and power-down conditions.
Pin Functions:
1. Pin 1 (VDD): Supply voltage input.
2. Pin 2 (GND): Ground reference.
3. Pin 3 (RESET): Active low reset output.
4. Pin 4 (RESET/SEL): Selects reset delay time or can be used for manual reset.
5. Pin 5 (SENSE): Voltage sense input for the monitored voltage.
6. Pin 6 (VTH): Threshold voltage setting.
7. Pin 7 (NC): No connection (not used).
8. Pin 8 (COMP): Compensation pin for stability.
The LM3880MF-1AB is effective in safeguarding against low voltage conditions, making it essential in various electronic applications.

Manufacturer

The LM3880MF-1AB is manufactured by Texas Instruments (TI), a prominent American technology company headquartered in Dallas, Texas. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, including analog, digital signal processing, and microcontroller products. Founded in 1930, the company has a strong reputation in the electronics industry, serving sectors such as automotive, industrial, communications, and consumer electronics. TI is known for its innovation in both digital and analog technologies, contributing to advancements in a wide range of applications.

Application

The LM3880MF-1AB is a voltage supervisor used in various application areas, including power supply monitoring, battery management systems, telecommunications, automotive electronics, and industrial control systems. It provides under-voltage and over-voltage protection, ensuring system reliability and preventing damage to sensitive components. Its low power consumption and compact design make it suitable for portable and embedded applications.

Equivalent

The LM3880MF-1AB is a voltage monitor chip. Equivalent products include:
1. LM2937 - A voltage supervisor with similar functions.
2. MAX809 - A voltage monitor from Maxim Integrated.
3. TL7705 - A precision voltage supervisor by Texas Instruments.
4. LM393 - A dual comparator that can be configured for voltage monitoring.
Always verify specifications for exact compatibility in your application.

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