LM3880MF-1AF/NOPB

Product Overview

Category

The LM3880MF-1AF/NOPB belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various electronic devices to provide power supply supervision and control functions.

Characteristics

• The LM3880MF-1AF/NOPB offers a compact and efficient solution for power management.
• It integrates multiple features such as power-on reset, watchdog timer, and manual reset input.
• This IC operates over a wide voltage range, making it suitable for diverse applications.
• It provides accurate monitoring and control of power supply voltages.

Package

The LM3880MF-1AF/NOPB is available in a small outline package (SOT-23-5) which facilitates easy integration into circuit designs.

Essence

The essence of the LM3880MF-1AF/NOPB lies in its ability to ensure reliable power management by monitoring and controlling critical power supply parameters.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with each reel containing a specific quantity of LM3880MF-1AF/NOPB ICs.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Power-On Reset Threshold Accuracy: ±1.5%
• Watchdog Timer Timeout Period: Adjustable from 6.3ms to 1024ms
• Manual Reset Input Threshold Voltage: 0.8V (typical)

Detailed Pin Configuration

The LM3880MF-1AF/NOPB has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET: Output signal indicating power-on reset or watchdog timeout
5. WDI: Watchdog timer input

Functional Features

Power-On Reset (POR)

The LM3880MF-1AF/NOPB monitors the supply voltage and generates a reset signal when it rises above the power-on reset threshold. This ensures that the system starts in a known state.

Watchdog Timer

By monitoring the WDI input, the IC continuously checks for a valid signal. If the signal is not toggled within the specified timeout period, the IC generates a reset signal, preventing system lock-up.

Manual Reset

The MR pin allows for an external manual reset input. When this pin is asserted low, the IC generates a reset signal, enabling manual control over the system reset.

Advantages and Disadvantages

Advantages

• Compact and efficient power management solution
• Wide operating voltage range
• Accurate power supply monitoring
• Integrated power-on reset, watchdog timer, and manual reset functions

Disadvantages

• Limited number of available alternative models
• May require additional external components for specific applications

Working Principles

The LM3880MF-1AF/NOPB operates by continuously monitoring the supply voltage and the watchdog timer input. It compares these inputs against predefined thresholds to determine the appropriate action. The IC generates reset signals based on power-on reset, watchdog timeout, or manual reset inputs.

Detailed Application Field Plans

The LM3880MF-1AF/NOPB finds application in various electronic devices requiring reliable power management. Some potential application fields include: - Consumer electronics - Industrial automation - Medical devices - Automotive systems - Internet of Things (IoT) devices

Detailed and Complete Alternative Models

While the LM3880MF-1AF/NOPB is a popular choice for power management, there are alternative models available from different manufacturers. Some notable alternatives include: - TPS3840DDP - MAX823LEUK-T - LTC2937CTS8-1#TRMPBF

These alternative models offer similar functionality and can be considered based on specific application requirements.

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