MAX6899AALT+T

Product Overview

• Category: Integrated Circuit (IC)
• 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 operation of electronic systems by resetting them in case of power supply issues.
• Package: 6-Lead SOT-23
• 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: 2.5V, 3.0V, 3.3V, 4.38V, 4.63V, 4.88V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6899AALT+T has the following pin configuration:

1. GND: Ground connection.
2. MR: Manual Reset input. When pulled low, it forces a reset regardless of the monitored voltage level.
3. VCC: Power supply input.
4. RESET: Active-low reset output. Goes low when the monitored voltage falls below the threshold.
5. TH: Threshold voltage selection pin. Connect to VCC or GND to set the desired threshold voltage.
6. NC: No Connection.

Functional Features

• Monitors the voltage level of the power supply continuously.
• Generates a reset signal when the voltage falls below the set threshold.
• Provides a manual reset option through the MR pin.
• Offers multiple threshold voltage options for flexibility.
• Has a built-in reset timeout period to prevent false resets.

Advantages and Disadvantages

Advantages: - Compact package allows for easy integration into various electronic systems. - Wide supply voltage range makes it compatible with different power supply configurations. - Multiple threshold voltage options provide flexibility for different applications. - Built-in reset timeout period prevents false resets.

Disadvantages: - Limited to voltage monitoring and reset functionality only. - Not suitable for applications requiring more advanced features or complex circuitry.

Working Principles

The MAX6899AALT+T operates by continuously monitoring the voltage level of the power supply. It compares the monitored voltage with the set threshold voltage. When the monitored voltage falls below the threshold, the RESET pin goes low, indicating a reset condition. The reset signal remains active until the voltage rises above the threshold or a manual reset is triggered through the MR pin.

Detailed Application Field Plans

The MAX6899AALT+T finds applications in various electronic systems where voltage monitoring and reset functionality are crucial. Some potential application fields include:

1. Microcontrollers: Ensuring proper operation and preventing data corruption during power supply fluctuations.
2. Industrial Control Systems: Resetting critical components in case of power supply issues to maintain system integrity.
3. Automotive Electronics: Monitoring battery voltage and initiating resets to prevent damage to sensitive electronics.
4. Medical Devices: Safeguarding patient safety by resetting devices in case of power supply anomalies.
5. Home Automation: Providing reliable reset functionality for smart home devices to ensure uninterrupted operation.

Detailed and Complete Alternative Models

1. MAX809: Voltage Monitor and Reset Circuit with Push-Pull Output.
2. MAX6710: Dual-Voltage Monitor and Reset Circuit with Adjustable Thresholds.
3. MAX638: Voltage Monitor and Reset Circuit with Watchdog Timer Functionality.
4. MAX811: Voltage Monitor and Reset Circuit with Manual Reset Input and Adjustable Thresholds.
5. MAX632: Voltage Monitor and Reset Circuit with Power-Fail Comparator.

(Note: The above list is not exhaustive and serves as a starting point for exploring alternative models.)

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