LM8364BALMF27/NOPB

Introduction

The LM8364BALMF27/NOPB is a voltage supervisor and reset generator designed for use in microprocessor systems. This device provides monitoring of power supply voltages, watchdog timing, and manual reset capability. It is commonly used in applications where reliable system operation is critical.

Basic Information Overview

• Category: Voltage Supervisor and Reset Generator
• Use: Monitoring power supply voltages, watchdog timing, and manual reset generation in microprocessor systems.
• Characteristics: Precision voltage monitoring, adjustable reset timeout period, low power consumption.
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Ensuring reliable system operation by monitoring and controlling power supply voltages and reset signals.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage Range: 1.5V to 6.0V
• Reset Timeout Period: Adjustable from 1.6ms to 640ms
• Quiescent Current: 25µA
• Temperature Range: -40°C to 125°C
• Output Type: Active-Low Open-Drain

Detailed Pin Configuration

1. VDD: Supply Voltage Input
2. GND: Ground
3. MR: Manual Reset Input
4. RESET: Reset Output
5. WDI: Watchdog Input
6. CT: Reset Timeout Period Control
7. NC: No Connection
8. VDD: Supply Voltage Input

Functional Features

• Voltage Monitoring: Monitors the power supply voltage and asserts a reset signal if the voltage falls below a specified threshold.
• Watchdog Timer: Provides a mechanism for resetting the microprocessor if it fails to periodically toggle the watchdog input within the specified timeout period.
• Manual Reset: Allows for an external signal to initiate a reset condition.
• Adjustable Reset Timeout: The reset timeout period can be adjusted to suit the specific requirements of the application.

Advantages and Disadvantages

Advantages

• Precise voltage monitoring ensures reliable system operation.
• Low quiescent current minimizes power consumption.
• Adjustable reset timeout period offers flexibility in system design.

Disadvantages

• Limited to applications within the specified supply voltage range.
• Requires careful consideration of the reset timeout period to avoid unintended resets.

Working Principles

The LM8364BALMF27/NOPB continuously monitors the power supply voltage and compares it to a reference threshold. If the voltage falls below the threshold, the reset output is asserted, initiating a reset condition in the microprocessor. Additionally, the device includes a watchdog timer that must be periodically toggled by the microprocessor to prevent a watchdog timeout reset. The reset timeout period is adjustable, allowing for customization based on the specific requirements of the application.

Detailed Application Field Plans

The LM8364BALMF27/NOPB is widely used in various embedded systems, including: - Industrial control systems - Automotive electronics - Medical devices - Consumer electronics

In these applications, the device plays a crucial role in ensuring the reliable operation of microprocessor-based systems by monitoring power supply voltages and providing reset functionality.

Detailed and Complete Alternative Models

• MAX823: Similar voltage supervisor and reset generator with adjustable reset timeout period.
• TC54: Voltage supervisor with fixed reset timeout period and watchdog timer functionality.

In conclusion, the LM8364BALMF27/NOPB is a versatile voltage supervisor and reset generator suitable for a wide range of microprocessor-based applications. Its precise monitoring capabilities, adjustable features, and low power consumption make it an essential component for ensuring the reliability of embedded systems.