MAX6446UK26L+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 certain threshold.
  • Provides a reliable way to ensure proper operation of electronic systems by preventing them from operating in an undervoltage condition.
• 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: 2.6V
• Reset Timeout Period: Adjustable
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

The MAX6446UK26L+T has a total of five pins:

1. GND: Ground connection.
2. RESET: Output pin for the reset signal.
3. MR: Manual reset input pin.
4. VCC: Power supply input.
5. TH: Threshold voltage selection pin.

Functional Features

• Voltage Monitoring: The MAX6446UK26L+T continuously monitors the voltage level at the VCC pin.
• Reset Generation: When the voltage falls below the threshold set by the TH pin, the device generates a reset signal on the RESET pin.
• Manual Reset: The MR pin allows for manual resetting of the device.
• Adjustable Timeout Period: The reset timeout period can be adjusted using external components.

Advantages and Disadvantages

Advantages: - Compact package size enables space-saving designs. - Wide supply voltage range allows for compatibility with various systems. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited threshold voltage options may not suit all applications. - Manual reset functionality may not be required in all systems.

Working Principles

The MAX6446UK26L+T operates by comparing the voltage at the VCC pin with the threshold voltage set by the TH pin. When the VCC voltage falls below the threshold, the device triggers a reset signal on the RESET pin. The reset timeout period can be adjusted using external components. The MR pin allows for manual resetting of the device.

Detailed Application Field Plans

The MAX6446UK26L+T is commonly used in various electronic systems where reliable voltage monitoring and reset functionality are crucial. Some application fields include:

1. Microcontrollers: Ensuring proper operation and preventing data corruption during undervoltage conditions.
2. Industrial Control Systems: Protecting sensitive equipment from damage caused by power supply fluctuations.
3. Automotive Electronics: Preventing malfunctioning of critical systems due to voltage drops.
4. Battery-Powered Devices: Extending battery life by shutting down the system when the voltage reaches a critical level.

Detailed and Complete Alternative Models

1. MAX6446UK26L+T: The specific model discussed in this entry.
2. MAX6446UK26L+T/V+: Variant with an extended operating temperature range (-40°C to +125°C).
3. MAX6446UK26L+T/WD: Model with a watchdog timer feature for enhanced system reliability.

These alternative models offer similar voltage monitoring and reset functionality but may have additional features or different specifications to cater to specific application requirements.

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