MAX6861UK24+T

Product Overview

• Category: Integrated Circuit
• Use: Voltage Monitor and Reset Circuit
• Characteristics:
  • Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a specified threshold.
  • Provides a reliable way to ensure proper system operation by resetting the microcontroller or other digital circuitry during power-up, power-down, or brownout conditions.
• Package: SOT23-5
• Essence: Voltage monitoring and reset functionality in a compact package.
• Packaging/Quantity: Tape and Reel, 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.63V, 3.08V, 4.38V, 4.63V, 4.88V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6861UK24+T has the following pin configuration:

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Pin Description: - Pin 1: GND (Ground) - Pin 2: RESET (Reset Output) - Pin 3: MR (Manual Reset Input) - Pin 4: VCC (Supply Voltage) - Pin 5: TH (Threshold Voltage Selection)

Functional Features

• Monitors the supply voltage continuously.
• Generates a reset signal when the voltage falls below the selected threshold.
• Provides a manual reset input for external control.
• Offers multiple threshold voltage options for flexibility.
• Includes a reset timeout period to prevent false resets during power fluctuations.

Advantages and Disadvantages

Advantages: - Compact package size allows for space-saving designs. - Wide supply voltage range enables compatibility with various systems. - Multiple threshold voltage options provide flexibility for different applications. - Reset timeout period prevents false resets, ensuring system stability.

Disadvantages: - Limited to voltage monitoring and reset functionality only. - Not suitable for applications requiring complex power management features.

Working Principles

The MAX6861UK24+T operates by continuously monitoring the supply voltage. When the voltage falls below the selected threshold, it generates a reset signal. This signal can be used to reset the microcontroller or other digital circuitry, ensuring proper system operation during power fluctuations or brownout conditions. The device also includes a manual reset input, allowing external control over the reset function.

Detailed Application Field Plans

The MAX6861UK24+T is commonly used in various electronic systems where voltage monitoring and reset functionality are critical. Some application fields include:

1. Embedded Systems: Used to ensure reliable operation of microcontrollers, DSPs, and other digital circuitry in embedded systems.
2. Industrial Automation: Provides voltage monitoring and reset capabilities for PLCs, motor control systems, and industrial equipment.
3. Consumer Electronics: Ensures proper functioning of smart devices, home appliances, and portable electronics.
4. Automotive Electronics: Used in automotive systems to monitor and reset critical components, such as engine control units (ECUs) and safety systems.

Detailed and Complete Alternative Models

1. MAX6860: Similar voltage monitor and reset circuit with different package options.
2. MAX6862: Voltage monitor and reset circuit with additional power management features.
3. MAX6863: Enhanced version with adjustable threshold voltage and longer reset timeout period.

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

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