LM3880MFE-1AB/NOPB

Product Overview

Category

The LM3880MFE-1AB/NOPB belongs to the category of voltage supervisors and reset ICs.

Use

This product is primarily used for monitoring the power supply voltage in electronic systems and ensuring proper system operation.

Characteristics

• Voltage supervisor with adjustable threshold
• Low quiescent current consumption
• Wide operating voltage range
• Precision voltage reference
• Power-on reset delay time programmable through external capacitor
• Open-drain output
• Small package size

Package

The LM3880MFE-1AB/NOPB is available in a small 6-pin SOT-23 package.

Essence

The essence of the LM3880MFE-1AB/NOPB is its ability to monitor the power supply voltage and generate a reset signal when the voltage falls below a certain threshold.

Packaging/Quantity

The LM3880MFE-1AB/NOPB is typically sold in reels containing 3000 units per reel.

Specifications

• Operating Voltage Range: 1.6V to 5.5V
• Quiescent Current: 3µA (typical)
• Reset Threshold Voltage Range: 0.4V to 4.6V
• Power-On Reset Delay Time: Programmable from 1ms to 10s
• Output Type: Open-drain
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM3880MFE-1AB/NOPB has the following pin configuration:

1. GND: Ground connection
2. MR: Manual reset input
3. VDD: Positive power supply input
4. RESET: Reset output
5. NC: No connection
6. VDD: Positive power supply input

Functional Features

• Voltage monitoring: The LM3880MFE-1AB/NOPB continuously monitors the power supply voltage and compares it to a programmable threshold.
• Reset generation: When the power supply voltage falls below the threshold, the LM3880MFE-1AB/NOPB generates a reset signal to initiate system reset.
• Manual reset input: The MR pin allows for manual reset initiation when pulled low.
• Power-on reset delay: The delay time for generating the reset signal after power-on can be adjusted using an external capacitor.

Advantages and Disadvantages

Advantages

• Adjustable threshold allows flexibility in voltage monitoring.
• Low quiescent current consumption helps conserve power.
• Wide operating voltage range enables compatibility with various systems.
• Small package size saves board space.

Disadvantages

• Lack of built-in hysteresis may lead to potential noise-related issues.
• Limited number of pins restricts additional functionality integration.

Working Principles

The LM3880MFE-1AB/NOPB operates by comparing the power supply voltage with a programmable threshold. When the voltage falls below this threshold, the IC generates a reset signal, initiating a system reset. The delay time for generating the reset signal after power-on can be adjusted using an external capacitor. The open-drain output allows for easy interfacing with other components.

Detailed Application Field Plans

The LM3880MFE-1AB/NOPB finds applications in various electronic systems where reliable power supply monitoring and reset generation are crucial. Some potential application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial automation equipment
4. Automotive electronics
5. Portable devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM3880MFE-1AB/NOPB include:

1. MAX809: Voltage supervisors with adjustable threshold and various package options.
2. TPS3839: Precision voltage supervisors with low quiescent current and adjustable reset threshold.
3. ADM6315: Microprocessor supervisory circuits with adjustable reset timeout period.

These alternative models provide options for different voltage ranges, package sizes, and additional features to suit specific application requirements.

(Note: The content provided above is a sample entry and may not reflect actual specifications or details of the LM3880MFE-1AB/NOPB or its alternative models.)