MAX824TEXK+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, reset output
• Package: SOT23-5
• Essence: Monitors supply voltage and generates a reset signal when the voltage falls below a specified threshold
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 4.38V
• Reset Timeout Period: Adjustable or fixed options available
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX824TEXK+T IC has a total of 5 pins:

1. VCC: Supply voltage input
2. GND: Ground reference
3. MR: Manual reset input (active-low)
4. RESET: Reset output (active-low)
5. TH: Threshold voltage selection pin

Functional Features

• Monitors the supply voltage and asserts the reset output when the voltage drops below the set threshold
• Provides a manual reset option through the MR pin
• Offers adjustable or fixed reset timeout period options
• Low-power consumption for energy-efficient applications
• Precision voltage monitoring ensures accurate detection of voltage variations

Advantages and Disadvantages

Advantages

• Compact SOT23-5 package allows for space-saving integration in small form factor designs
• Wide supply voltage range enables compatibility with various power sources
• Multiple threshold voltage options provide flexibility for different voltage monitoring requirements
• Adjustable reset timeout period allows customization based on specific application needs
• Low-power operation extends battery life in portable devices

Disadvantages

• Limited to voltage monitoring and reset functionality, may not suit applications requiring more complex features
• SOT23-5 package may have limitations in terms of heat dissipation compared to larger packages

Working Principles

The MAX824TEXK+T operates by continuously monitoring the supply voltage connected to the VCC pin. It compares the voltage against the selected threshold voltage (determined by the TH pin) and generates a reset signal on the RESET pin when the voltage falls below the threshold. The reset signal remains active until the supply voltage rises above the threshold or a manual reset is triggered through the MR pin.

Detailed Application Field Plans

The MAX824TEXK+T finds application in various fields where reliable voltage monitoring and reset functionality are essential. Some potential application areas include:

1. Microcontrollers and Microprocessors: Ensuring proper system initialization and preventing erratic behavior during power-up or voltage fluctuations.
2. Embedded Systems: Providing a controlled reset mechanism for stable operation and protection against power supply issues.
3. Industrial Automation: Monitoring critical voltage levels in control systems to prevent damage or data corruption during power disturbances.
4. Automotive Electronics: Safeguarding sensitive electronic components from voltage drops or transients that could lead to malfunctions.
5. Battery-Powered Devices: Preserving battery life by initiating a reset when the voltage reaches a critical level, preventing deep discharge.

Detailed and Complete Alternative Models

1. MAX823TEXK+T: Similar to MAX824TEXK+T but with fixed reset timeout period option.
2. MAX825TEXK+T: Voltage monitor and reset circuit with additional watchdog timer functionality.
3. MAX809TEXK+T: Supervisory circuit with adjustable reset threshold and timeout period options.

(Note: This list is not exhaustive and other alternative models may exist.)

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