MAX6313UK43D1-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor with Manual Reset
• Characteristics: Low-power, precision voltage monitoring, manual reset input, small package size
• Package: SOT23-5
• Essence: The MAX6313UK43D1-T is a voltage monitor IC designed to monitor the power supply voltage of electronic systems and provide a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: The MAX6313UK43D1-T is available in tape and reel packaging with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 4.3V
• Reset Timeout Period: Adjustable from 1ms to 1600ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1µA (typical)

Detailed Pin Configuration

The MAX6313UK43D1-T has a total of five pins:

1. GND: Ground connection.
2. MR: Manual reset input pin. When pulled low, it forces the reset output to go active.
3. RESET: Active-low reset output. It goes low when the monitored voltage falls below the threshold.
4. VCC: Positive power supply input.
5. TH: Threshold voltage selection pin. Connect to VCC or GND to set the desired threshold voltage.

Functional Features

• Voltage Monitoring: The MAX6313UK43D1-T continuously monitors the power supply voltage and generates a reset signal when the voltage drops below the threshold.
• Manual Reset Input: The manual reset input allows for an external signal to force a reset, regardless of the monitored voltage level.
• Adjustable Reset Timeout: The reset timeout period can be adjusted to meet specific system requirements.
• Low Power Consumption: The IC operates with a low quiescent current, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring ensures reliable system operation. - Small package size allows for space-saving designs. - Adjustable reset timeout provides flexibility in different applications. - Low power consumption extends battery life.

Disadvantages: - Limited threshold voltage options may not suit all voltage monitoring requirements. - Manual reset input may introduce additional complexity in system design.

Working Principles

The MAX6313UK43D1-T works by comparing the supply voltage with the threshold voltage set through the TH pin. When the supply voltage drops below the threshold, the reset output goes low, indicating a power failure or an out-of-range condition. The reset output remains low until the supply voltage rises above the threshold and the reset timeout period elapses.

The manual reset input (MR) allows for an external signal to force a reset, overriding the voltage monitoring function. This feature is useful during system initialization or when a manual reset is required.

Detailed Application Field Plans

The MAX6313UK43D1-T is commonly used in various electronic systems where reliable voltage monitoring is critical. Some application fields include:

1. Microcontrollers: Ensuring proper system reset during power fluctuations or brownout conditions.
2. Industrial Control Systems: Monitoring power supply integrity in control panels and equipment.
3. Automotive Electronics: Detecting voltage drops in automotive systems to prevent malfunctions.
4. Battery-Powered Devices: Protecting battery-operated devices from undervoltage conditions.

Detailed and Complete Alternative Models

1. MAX6314UK46D3-T: Similar to MAX6313UK43D1-T but with a threshold voltage of 4.6V.
2. MAX6315UK49D2-T: Similar to MAX6313UK43D1-T but with a threshold voltage of 4.9V.
3. MAX6316UK52D1-T: Similar to MAX6313UK43D1-T but with a threshold voltage of 5.2V.

These alternative models provide different threshold voltage options to accommodate various voltage monitoring requirements.

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