MAX6424UK31+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, precision voltage monitoring
• Package: SOT23-5
• Essence: Provides accurate monitoring and reset generation for microcontrollers and other digital systems
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 3.08V, 3.13V, 3.08V, 3.63V, 3.08V, 3.78V, 3.08V, 4.38V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 2µA (typical)

Pin Configuration

The MAX6424UK31+T features a SOT23-5 package with the following pin configuration:

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Pin Description: 1. GND: Ground 2. RESET: Active-low reset output 3. MR: Manual reset input 4. VCC: Supply voltage 5. TH: Threshold voltage selection

Functional Features

1. Voltage Monitoring: The MAX6424UK31+T accurately monitors the supply voltage and generates a reset signal when it falls below a specified threshold.
2. Precision Threshold Selection: The device offers multiple threshold voltage options, allowing precise monitoring suited to different system requirements.
3. Manual Reset Input: The MR pin allows for manual reset control, enabling system initialization or recovery.
4. Low Power Consumption: With a quiescent current of only 2µA, the MAX6424UK31+T minimizes power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Accurate voltage monitoring - Multiple threshold voltage options - Low-power operation - Manual reset control

Disadvantages: - Limited to SOT23-5 package - Single-channel voltage monitoring

Working Principles

The MAX6424UK31+T operates by comparing the supply voltage with the selected threshold voltage. When the supply voltage drops below the threshold, the device asserts the active-low RESET output, indicating a power failure or low voltage condition. The RESET signal remains asserted until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The MAX6424UK31+T finds application in various fields, including:

1. Microcontroller Systems: Provides reliable power-on reset generation for microcontrollers, ensuring proper initialization and preventing erratic behavior during power-up.
2. Industrial Control Systems: Monitors supply voltage in industrial control systems, triggering appropriate actions or alarms when voltage falls below acceptable levels.
3. Battery-Powered Devices: Enables efficient power management in battery-operated devices, extending battery life by initiating low-power modes or shutdown sequences during low voltage conditions.
4. Embedded Systems: Ensures stable operation of embedded systems by monitoring supply voltage and initiating system resets or recovery procedures when necessary.

Detailed and Complete Alternative Models

1. MAX6425UK31+T: Similar to MAX6424UK31+T but offers different threshold voltage options.
2. MAX6426UK31+T: Voltage supervisor IC with additional features such as adjustable reset timeout period.
3. MAX6427UK31+T: Dual-channel voltage supervisor IC, suitable for applications requiring monitoring of multiple supply voltages.

Note: This is not an exhaustive list, and there may be other alternative models available from Maxim Integrated or other manufacturers.

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