MAX6423XS23+T

Product Overview

Category

The MAX6423XS23+T belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for voltage monitoring and reset functions in various electronic devices.

Characteristics

• Voltage monitoring: The MAX6423XS23+T is designed to monitor the voltage level of a power supply and provide a reset signal when the voltage falls below a certain threshold.
• Reset function: It generates a reset signal to ensure proper operation of the device when the power supply voltage is unstable or drops below the specified level.
• Low power consumption: The IC operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide range of input voltages, typically from 1.6V to 5.5V.
• Small package size: The MAX6423XS23+T is available in a small SOT23 package, which makes it suitable for space-constrained applications.

Package and Quantity

The MAX6423XS23+T is packaged in a SOT23 package. It is typically sold in reels containing a specific quantity, such as 3000 units per reel.

Specifications

• Input Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: Various threshold voltage options are available, such as 2.3V, 2.5V, 2.8V, etc.
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: Typically 4µA
• Reset Timeout Period: Typically 140ms
• Output Type: Active-Low Push-Pull or Open-Drain

Detailed Pin Configuration

The MAX6423XS23+T has the following pin configuration:

```

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| | --| VDD GND |-- Pin 1: Ground (GND) --| RST OUT |-- Pin 2: Reset Output (OUT) --| TH MR |-- Pin 3: Threshold Input (TH) |___________| ```

Functional Features

• Voltage Monitoring: The MAX6423XS23+T continuously monitors the input voltage and compares it with the threshold voltage set by the TH pin.
• Reset Generation: When the input voltage falls below the threshold voltage, the IC generates a reset signal on the OUT pin to initiate a system reset.
• Adjustable Threshold: The threshold voltage can be set externally using a resistor divider network connected to the TH pin.
• Power-On Reset: The IC provides a power-on reset pulse when the input voltage rises above the threshold voltage after being below it.

Advantages and Disadvantages

Advantages

• Compact size and low power consumption make it suitable for portable and battery-powered applications.
• Wide operating voltage range allows compatibility with various power supply voltages.
• Adjustable threshold voltage provides flexibility in different voltage monitoring scenarios.
• Power-on reset feature ensures proper initialization of the system.

Disadvantages

• Limited number of threshold voltage options available.
• Lack of built-in hysteresis may lead to potential oscillations near the threshold voltage.

Working Principles

The MAX6423XS23+T operates based on a voltage comparator circuit. It compares the input voltage with the threshold voltage set by the TH pin. When the input voltage falls below the threshold voltage, the comparator output switches state, generating a reset signal on the OUT pin. This reset signal can be used to trigger a system reset or perform other necessary actions.

Detailed Application Field Plans

The MAX6423XS23+T finds applications in various electronic devices that require voltage monitoring and reset functions. Some potential application fields include:

1. Microcontrollers and Microprocessors: The IC can be used to monitor the power supply voltage of microcontrollers and initiate a reset when necessary.
2. Embedded Systems: It is suitable for voltage monitoring in embedded systems, ensuring stable operation even in fluctuating power conditions.
3. Battery-Powered Devices: The low power consumption and wide operating voltage range make it ideal for battery-powered devices such as portable medical equipment, handheld instruments, and IoT devices.
4. Industrial Control Systems: The IC can be employed in industrial control systems to monitor power supply voltages and ensure reliable operation.

Detailed and Complete Alternative Models

1. MAX6424XS23+T: Similar to the MAX6423XS23+T, but with additional features like adjustable reset timeout period and manual reset input.
2. MAX6425XS23+T: This model offers similar voltage monitoring and reset functions but includes an active-high reset output instead of active-low.
3. MAX6426XS23+T: Designed for higher voltage applications, this model operates within an extended input voltage range of 2.7V to 11V.

These alternative models provide similar functionality with slight