MAX6312EUK46D3+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 MAX6312EUK46D3+T is a voltage monitor IC designed to monitor the power supply voltage of electronic systems and provide a manual reset function.
• Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 4.6V
• Manual Reset Input: Active-low push-button reset input
• Reset Timeout Period: Adjustable using an external capacitor
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1µA (typical)

Detailed Pin Configuration

The MAX6312EUK46D3+T has a total of five pins:

1. GND: Ground connection
2. MR: Manual reset input pin
3. VCC: Positive supply voltage input
4. RESET: Active-low reset output
5. TH: Threshold voltage selection pin

Functional Features

• Voltage Monitoring: The MAX6312EUK46D3+T continuously monitors the supply voltage and asserts the reset signal when the voltage drops below the threshold.
• Manual Reset Input: The manual reset input allows the user to manually reset the system by asserting a low signal on the MR pin.
• Adjustable Reset Timeout: The timeout period for the reset signal can be adjusted by connecting an external capacitor to the CT pin.
• Low Power Consumption: The IC operates at a low quiescent current of 1µA, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring - Manual reset capability - Adjustable reset timeout period - Low power consumption

Disadvantages: - Limited threshold voltage options - SOT23-5 package may not be suitable for all applications

Working Principles

The MAX6312EUK46D3+T works by comparing the supply voltage with a fixed threshold voltage. When the supply voltage drops below the threshold, the reset output is asserted, indicating a power failure or an out-of-range condition. The manual reset input allows the user to manually reset the system, even if the supply voltage is within the acceptable range. The reset timeout period can be adjusted using an external capacitor connected to the CT pin.

Detailed Application Field Plans

The MAX6312EUK46D3+T is commonly used in various electronic systems where reliable voltage monitoring and manual reset functionality are required. Some potential application fields include:

1. Embedded Systems: Used to monitor the power supply voltage in microcontroller-based systems, ensuring proper operation and preventing data corruption during power fluctuations.
2. Industrial Control Systems: Provides voltage monitoring and manual reset capabilities in industrial control panels, ensuring safe and controlled system startup after power interruptions.
3. Automotive Electronics: Monitors the vehicle's power supply voltage, triggering a reset if the voltage falls below the threshold, preventing damage to sensitive electronic components.
4. Battery-Powered Devices: Enables efficient power management in portable devices, allowing for graceful shutdown or hibernation when the battery voltage reaches critical levels.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX6312EUK46D3+T include:

1. MAX6314: Offers multiple threshold voltage options and additional features such as watchdog timer and power-fail comparator.
2. MAX823: Provides voltage monitoring and manual reset functionality in a different package (SOT23-3) with a lower quiescent current.
3. ADM6315: Voltage monitor IC with adjustable threshold voltage, manual reset input, and power-on reset delay.

These alternative models can be considered based on specific application requirements and design constraints.

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