MAX6453UT46S+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy, small package size
• Package: SOT-23-6
• Essence: Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Reset Threshold Options: 2.93V, 3.08V, 3.30V, 4.63V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6453UT46S+T IC has a total of six pins arranged in the following configuration:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| RESET OUT |-- Pin 2: Reset Output --| MR |-- Pin 3: Manual Reset Input --| TH |-- Pin 4: Threshold Selection Input --| TRIG |-- Pin 5: Trigger Input --| VCC |-- Pin 6: Power Supply (VCC) |___________| ```

Functional Features

• Monitors the voltage level of a power supply.
• Generates a reset signal when the voltage falls below the selected threshold.
• Provides a manual reset input for immediate system reset.
• Offers multiple threshold options for flexibility.
• Low quiescent current ensures minimal power consumption.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Small package size (SOT-23-6) enables space-saving designs. - Low-power operation prolongs battery life in portable applications. - Accurate reset threshold ensures reliable system operation.

Disadvantages: - Limited number of threshold options may not suit all applications. - Reset timeout period may not be adjustable, limiting customization.

Working Principles

The MAX6453UT46S+T operates by continuously monitoring the power supply voltage. When the voltage falls below the selected threshold, the IC generates a reset signal, which can be used to initiate a system reset. The manual reset input allows for immediate system reset regardless of the voltage level. The low quiescent current ensures minimal power consumption when the IC is in standby mode.

Detailed Application Field Plans

The MAX6453UT46S+T is commonly used in various electronic systems where voltage supervision is critical. Some potential application fields include:

1. Microcontrollers and Microprocessors: Ensures proper system initialization and prevents erratic behavior during power-up or brownout conditions.
2. Industrial Control Systems: Provides reliable reset signals to ensure safe and controlled operation of machinery and equipment.
3. Automotive Electronics: Monitors the vehicle's power supply to prevent malfunctions and ensure proper functioning of critical systems.
4. Battery-Powered Devices: Maximizes battery life by initiating a reset when the battery voltage drops below a certain threshold.
5. Communication Systems: Protects sensitive circuitry from voltage fluctuations and ensures uninterrupted communication.

Detailed and Complete Alternative Models

1. MAX6454UT46S+T: Similar to MAX6453UT46S+T but offers additional threshold options.
2. MAX6455UT46S+T: Provides adjustable reset timeout period for increased customization.
3. MAX6456UT46S+T: Offers higher accuracy and lower quiescent current compared to MAX6453UT46S+T.
4. MAX6457UT46S+T: Includes additional features such as power-on reset delay and watchdog timer functionality.

These alternative models provide options for different voltage monitoring requirements, allowing designers to choose the most suitable IC for their specific application.

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