MAX6314US30D1-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 system initialization and prevent data corruption or erratic behavior during power-up 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: 2.93V, 3.08V, 3.30V, 3.63V, 4.38V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX6314US30D1-T has a total of 5 pins:

1. GND: Ground connection.
2. MR: Manual Reset input pin. When pulled low, it forces a reset condition.
3. RESET: Active-low reset output. Goes low when the monitored voltage falls below the threshold.
4. VCC: Power supply input.
5. TH: Threshold selection pin. Connects to an external resistor divider network to set the desired threshold voltage.

Functional Features

• Accurate voltage monitoring: The MAX6314US30D1-T accurately monitors the power supply voltage and provides a reset signal when it drops below the specified threshold.
• Manual reset capability: The MR pin allows for a manual reset, overriding the voltage monitoring function.
• Adjustable threshold voltage: The TH pin can be connected to an external resistor divider network to set the desired threshold voltage.
• Reset timeout: The reset signal remains active for a fixed period (140ms typical) after the voltage rises above the threshold, ensuring proper system initialization.

Advantages and Disadvantages

Advantages: - Compact package size allows for space-efficient designs. - Wide supply voltage range enables compatibility with various systems. - Accurate voltage monitoring helps prevent data corruption and erratic behavior during power-up or brownout conditions.

Disadvantages: - Limited threshold voltage options may not cover all application requirements. - Fixed reset timeout period may not be suitable for all system initialization scenarios.

Working Principles

The MAX6314US30D1-T utilizes an internal voltage reference and comparator to monitor the power supply voltage. When the voltage falls below the threshold set by the TH pin, the RESET output goes low, indicating a reset condition. The reset signal remains active for a fixed period, allowing the system to properly initialize. The MR pin provides a manual reset option, overriding the voltage monitoring function.

Detailed Application Field Plans

The MAX6314US30D1-T is commonly used in various electronic systems where reliable power supply monitoring and reset functionality are crucial. Some potential application fields include:

1. Microcontrollers and Microprocessors: Ensuring proper initialization and preventing data corruption during power-up or brownout conditions.
2. Communication Systems: Maintaining system integrity by resetting the system when the power supply voltage drops below the specified threshold.
3. Industrial Control Systems: Preventing erratic behavior and ensuring reliable operation during voltage fluctuations.
4. Automotive Electronics: Protecting sensitive electronic components from voltage variations and ensuring safe system operation.

Detailed and Complete Alternative Models

1. MAX6315US30D1-T: Similar to MAX6314US30D1-T but with additional features such as adjustable reset timeout period.
2. MAX6316US30D1-T: Voltage monitor and reset circuit with a wider supply voltage range and more threshold voltage options.
3. MAX6317US30D1-T: Enhanced version with additional features like power-on reset delay and watchdog timer functionality.

(Note: This is a fictional example, and the mentioned alternative models may not exist in reality.)

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