MAX642ACSA+T

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, Precision, Adjustable Thresholds
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Monitors and controls the voltage levels in electronic systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low, Open Drain
• Threshold Voltage Options: Adjustable or Fixed
• Reset Timeout Period: Adjustable or Fixed
• Quiescent Current: 10µA (typical)

Detailed Pin Configuration

1. GND: Ground
2. RESET: Active-Low Reset Output
3. MR: Manual Reset Input
4. TH: Threshold Voltage Input
5. VCC: Supply Voltage Input
6. RESET: Active-Low Reset Output
7. RESET: Active-Low Reset Output
8. NC: No Connection

Functional Features

• Monitors supply voltage and asserts reset when it falls below a specified threshold
• Provides a manual reset input for immediate system restart
• Offers adjustable or fixed threshold voltage options to suit different applications
• Configurable reset timeout period prevents false resets during power-up
• Low quiescent current ensures minimal power consumption

Advantages

• Wide supply voltage range allows compatibility with various systems
• Adjustable threshold voltage provides flexibility in voltage monitoring
• Low-power operation prolongs battery life in portable devices
• Small package size saves board space
• Reliable reset output ensures system stability

Disadvantages

• Limited number of pins restricts the number of features that can be integrated
• Lack of built-in hysteresis may lead to oscillations near the threshold voltage
• Not suitable for high-voltage applications

Working Principles

The MAX642ACSA+T is a voltage supervisor IC that continuously monitors the supply voltage of an electronic system. It compares the input voltage with a reference threshold and asserts the reset output when the voltage falls below the specified level. The threshold voltage can be adjusted or fixed depending on the application requirements. The IC also includes a manual reset input, allowing the system to be restarted immediately. The reset timeout period can be configured to prevent false resets during power-up. The low quiescent current ensures minimal power consumption.

Detailed Application Field Plans

• Battery-powered devices: Ensures proper operation by monitoring battery voltage and initiating a reset if it drops below a critical level.
• Microcontroller systems: Protects the microcontroller from unstable power conditions, preventing data corruption or erratic behavior.
• Industrial control systems: Monitors power supply integrity to ensure reliable operation of critical equipment.
• Automotive electronics: Guards against voltage fluctuations, ensuring stable performance of various vehicle systems.

Detailed and Complete Alternative Models

1. MAX641ACPA+T: Similar voltage supervisor IC with adjustable threshold voltage and push-pull output.
2. MAX643ACSA+T: Voltage supervisor IC with fixed threshold voltage and active-high, open-drain output.
3. MAX644ACSA+T: Voltage supervisor IC with adjustable threshold voltage and active-low, push-pull output.

(Note: These alternative models are from the same MAX series and offer similar functionality.)

This entry provides comprehensive information about the MAX642ACSA+T voltage supervisor IC. It covers its basic information, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.