MAX6369KA/V+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 operation.
• 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: 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX6369KA/V+T IC has the following pin configuration:

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

Functional Features

1. Voltage Monitoring: The MAX6369KA/V+T continuously monitors the voltage level of the power supply connected to it.
2. Reset Generation: When the monitored voltage falls below the threshold voltage set by the TH pin, the MAX6369KA/V+T generates an active-low reset signal on the RESET pin.
3. Manual Reset: The MR pin allows for a manual reset by pulling it low.
4. Adjustable Timeout Period: The reset timeout period can be adjusted using external capacitors, allowing customization based on system requirements.
5. Power-On Reset: The MAX6369KA/V+T provides a power-on reset signal to ensure proper initialization of the system.

Advantages and Disadvantages

Advantages: - Compact package size enables space-saving designs. - Wide supply voltage range allows for compatibility with various systems. - Adjustable timeout period offers flexibility in system configuration. - Reliable voltage monitoring ensures system stability.

Disadvantages: - Limited threshold voltage options may not cover all voltage requirements. - Manual reset functionality may not be suitable for all applications.

Working Principles

The MAX6369KA/V+T operates by comparing the monitored voltage level with the threshold voltage set by the TH pin. When the monitored voltage falls below the threshold, the internal circuitry generates an active-low reset signal on the RESET pin. This reset signal can be used to initialize or reset the connected system.

The timeout period determines how long the reset signal remains active after the voltage rises above the threshold. By adjusting external capacitors, the timeout period can be customized to meet specific system requirements.

Detailed Application Field Plans

The MAX6369KA/V+T is commonly used in various electronic systems where reliable voltage monitoring and reset functionality are crucial. Some application fields include:

1. Microcontrollers: Ensuring proper initialization and operation of microcontroller-based systems.
2. Embedded Systems: Providing a reliable reset mechanism for embedded systems.
3. Industrial Control Systems: Monitoring power supply voltage in industrial control systems to prevent malfunctions.
4. Communication Equipment: Resetting communication equipment during power fluctuations to maintain stable operation.
5. Automotive Electronics: Voltage monitoring and reset functionality in automotive electronics for enhanced safety and reliability.

Detailed and Complete Alternative Models

1. MAX6389KA/V+T: Similar to MAX6369KA/V+T but with additional features such as watchdog timer and adjustable reset timeout period.
2. MAX6316LUK46CY-T: Voltage monitor and reset circuit with a different package (SOT23-3) and fixed threshold voltage of 4.6V.
3. MAX811SEUS+T: Supervisory circuit with adjustable reset timeout period and push-pull output in a SOT143 package.

These alternative models offer similar functionality to the MAX6369KA/V+T but may have different specifications, package options, or additional features based on specific application requirements.

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