MAX6314US25D1+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 certain threshold.
  • Provides a reliable way to ensure proper system initialization and operation.
• Package: SOT23-5
• Essence: The MAX6314US25D1+T is a voltage monitor and reset circuit designed to enhance the reliability of electronic systems by monitoring the power supply voltage and generating a reset signal when necessary.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.5V
• Reset Timeout Period: Adjustable
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Pin Configuration

The MAX6314US25D1+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. It goes low when the monitored voltage falls below the threshold.
4. VCC: Power supply input.
5. TH: Threshold voltage selection pin. Connect to VCC or GND to set the desired threshold voltage.

Functional Features

• Monitors the power supply voltage continuously.
• Generates a reset signal when the voltage falls below the threshold.
• Adjustable reset timeout period allows customization for specific applications.
• Manual reset input provides a way to force a reset condition externally.

Advantages and Disadvantages

Advantages: - Enhances system reliability by ensuring proper initialization. - Adjustable reset timeout period allows flexibility in different applications. - Small package size (SOT23-5) enables space-saving designs.

Disadvantages: - Limited threshold voltage options (2.5V in this model). - Requires an external manual reset input for forced reset conditions.

Working Principles

The MAX6314US25D1+T operates by continuously monitoring the power supply voltage through the VCC pin. When the voltage falls below the threshold set by the TH pin, the RESET pin goes low, indicating a reset condition. The reset timeout period can be adjusted to meet specific application requirements. Additionally, the MR pin allows for a manual reset input, which forces a reset condition when pulled low.

Detailed Application Field Plans

The MAX6314US25D1+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: Ensures proper initialization and operation of these critical components.
2. Industrial Control Systems: Enhances system reliability by providing a reset signal during power supply fluctuations or failures.
3. Automotive Electronics: Monitors the vehicle's power supply to prevent malfunctions and ensure safe operation.
4. Medical Devices: Provides a reliable reset mechanism to ensure the correct functioning of medical equipment.
5. Consumer Electronics: Used in devices such as smartphones, tablets, and gaming consoles to enhance system stability.

Detailed and Complete Alternative Models

1. MAX6316MUK46AY+T: Similar voltage monitor and reset circuit with a different threshold voltage option (4.6V).
2. MAX6318MHUK29CY+T: Voltage monitor and reset circuit with a higher threshold voltage option (2.9V).
3. MAX6320PUK26CY+T: Voltage monitor and reset circuit with a different package (µMAX-8).

These alternative models offer different threshold voltage options and package choices, allowing designers to select the most suitable option for their specific application requirements.

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