MAX809SQ263T1G

Product Overview

• Category: Integrated Circuit
• Use: Voltage Monitor and Reset Circuit
• Characteristics:
  • Low-power consumption
  • Precision voltage monitoring
  • Wide operating voltage range
  • Small package size
• Package: SOT-23-3
• Essence: The MAX809SQ263T1G is a voltage monitor and reset circuit designed to ensure proper system operation by monitoring the power supply voltage.
• Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

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

Pin Configuration

The MAX809SQ263T1G has three pins:

1. VCC: Power supply input pin
2. GND: Ground pin
3. RESET: Active-low reset output pin

Functional Features

• Monitors the power supply voltage and asserts the reset signal when the voltage drops below the threshold.
• Provides a debounced reset output that remains asserted for a fixed timeout period after the voltage rises above the threshold.
• Ensures reliable system startup and prevents erratic behavior during power-up or brownout conditions.

Advantages

• Low-power consumption makes it suitable for battery-powered applications.
• Precision voltage monitoring ensures accurate detection of power supply variations.
• Wide operating voltage range allows compatibility with various systems.
• Small package size enables space-saving designs.

Disadvantages

• Limited threshold voltage options may not cater to all voltage monitoring requirements.
• Fixed reset timeout period may not be adjustable for specific applications.

Working Principles

The MAX809SQ263T1G operates by comparing the power supply voltage with the preset threshold voltage. When the supply voltage drops below the threshold, the reset output is asserted, indicating a low-voltage condition. Once the voltage rises above the threshold, the reset output remains asserted for a fixed timeout period, ensuring a stable system startup.

Detailed Application Field Plans

The MAX809SQ263T1G finds applications in various fields, including:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial control systems
4. Portable devices
5. Automotive electronics

Detailed and Complete Alternative Models

1. MAX809SEUR+T: Threshold voltage options of 2.93V
2. MAX809TEUR+T: Threshold voltage options of 3.08V
3. MAX809VEUR+T: Threshold voltage options of 3.63V
4. MAX809XEUR+T: Threshold voltage options of 4.38V

These alternative models provide different threshold voltage options to cater to specific voltage monitoring requirements.

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