MAX809SQ293T1G

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage Supervisors
• Characteristics:
  • Low-power consumption
  • Precision voltage monitoring
  • Reset output signal
  • Small package size
• Package: SOT-23-3
• Essence: MAX809SQ293T1G is a voltage supervisor IC that monitors the power supply voltage and provides a reset signal to the system when the voltage falls below a specified threshold.
• Packaging/Quantity: The MAX809SQ293T1G is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Threshold Voltage Options: 2.93V
• Reset Timeout Period: Adjustable or fixed options
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Pin Configuration

The MAX809SQ293T1G has a SOT-23-3 package with the following pin configuration:

```

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| | --| RST|-- Pin 1: Reset Output --| GND|-- Pin 2: Ground --| VCC|-- Pin 3: Supply Voltage |____| ```

Functional Features

• Monitors the supply voltage and generates a reset signal when it drops below the threshold voltage.
• Provides a stable reset output during power-up and power-down sequences.
• Offers adjustable or fixed reset timeout periods for flexibility in different applications.
• Low quiescent current consumption ensures minimal power drain from the system.
• Small package size allows for space-efficient designs.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring ensures reliable system operation. - Low-power consumption prolongs battery life in portable devices. - Small package size enables compact circuit designs.

Disadvantages: - Limited threshold voltage options may not suit all voltage requirements. - Fixed reset timeout period may not be suitable for applications with specific timing needs.

Working Principles

The MAX809SQ293T1G operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage drops below the specified threshold (2.93V in this case), the IC asserts a reset signal on the output pin. This signal remains active until the supply voltage rises above the threshold and stabilizes, ensuring a reliable reset during power-up and power-down sequences.

Detailed Application Field Plans

The MAX809SQ293T1G is commonly used in various electronic systems where voltage supervision is critical. Some application fields include:

1. Microcontrollers and Microprocessors: Ensures proper initialization and reliable operation of these digital devices.
2. Communication Systems: Provides voltage monitoring and reset functionality to maintain system integrity.
3. Industrial Control Systems: Protects sensitive components from voltage fluctuations and ensures safe operation.
4. Automotive Electronics: Monitors the vehicle's power supply to prevent malfunctions and ensure safety.
5. Battery-Powered Devices: Extends battery life by efficiently managing power consumption and preventing undervoltage conditions.

Detailed and Complete Alternative Models

1. MAX809SEUR+T: Similar voltage supervisor IC with a fixed 2.93V threshold and adjustable reset timeout period.
2. MAX809TEUR+T: Voltage supervisor IC with a fixed 2.93V threshold and fixed reset timeout period.
3. MAX809REUR+T: Voltage supervisor IC with a fixed 2.93V threshold and adjustable reset timeout period.
4. MAX809MEUR+T: Voltage supervisor IC with a fixed 2.93V threshold and adjustable reset timeout period.

These alternative models offer similar functionality to the MAX809SQ293T1G but may have different package options or additional features.

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