MAX811SEUS+TGA8

Product Overview

Category

MAX811SEUS+TGA8 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used as a voltage monitor and reset circuit.

Characteristics

• Low-power consumption
• Wide operating voltage range
• Adjustable reset threshold voltage
• Precision voltage reference
• Small package size

Package

The MAX811SEUS+TGA8 is available in a small SOT23-5 package.

Essence

The essence of this product lies in its ability to monitor and control the voltage levels in electronic systems, ensuring proper functioning and preventing damage due to unstable power supply.

Packaging/Quantity

The MAX811SEUS+TGA8 is typically packaged in reels containing 3000 units.

Specifications

• Supply Voltage Range: 1.6V to 6.0V
• Reset Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 3.63V, or adjustable
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 7µA (typical)
• Power-On Reset Time: 140ms (typical)

Detailed Pin Configuration

The MAX811SEUS+TGA8 has five pins:

1. GND: Ground connection
2. MR: Manual reset input
3. RESET: Active-low reset output
4. VCC: Positive power supply
5. ADJ: Adjust pin for setting the reset threshold voltage (only applicable for adjustable threshold version)

Functional Features

1. Voltage Monitoring: The MAX811SEUS+TGA8 continuously monitors the supply voltage and generates a reset signal when it falls below the programmed threshold.
2. Manual Reset: The manual reset input (MR) allows the user to manually reset the system.
3. Adjustable Threshold: The ADJ pin enables the user to set a custom reset threshold voltage, providing flexibility in different applications.
4. Precision Voltage Reference: The integrated precision voltage reference ensures accurate monitoring and reliable reset operation.

Advantages and Disadvantages

Advantages

• Low power consumption helps conserve energy in battery-powered devices.
• Wide operating voltage range makes it compatible with various systems.
• Adjustable reset threshold voltage allows customization for specific requirements.
• Small package size saves board space in compact designs.

Disadvantages

• Lack of built-in hysteresis may result in multiple reset signals during voltage fluctuations.
• Limited number of available threshold voltage options may not suit all applications.

Working Principles

The MAX811SEUS+TGA8 operates by comparing the supply voltage with the programmed threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, indicating a power failure or unstable voltage condition. The manual reset input allows the user to override the automatic reset function.

Detailed Application Field Plans

The MAX811SEUS+TGA8 finds applications in various fields, including:

1. Microcontrollers: Ensuring proper reset and initialization of microcontroller-based systems.
2. Power Supply Units: Monitoring voltage levels to protect sensitive components from damage.
3. Industrial Control Systems: Providing reliable reset functionality in industrial automation applications.
4. Automotive Electronics: Preventing malfunctions due to voltage fluctuations in automotive electronic systems.

Detailed and Complete Alternative Models

1. MAX811LEUS+TGA8: Similar to MAX811SEUS+TGA8 but with a lower quiescent current of 5µA.
2. MAX811TEUS+TGA8: Offers an adjustable reset threshold voltage with a wider range of options.
3. MAX811REUS+TGA8: Provides a higher operating temperature range of -40°C to +125°C.

(Note: This is not an exhaustive list of alternative models. Please refer to the manufacturer's documentation for a complete list.)

In conclusion, the MAX811SEUS+TGA8 is a versatile voltage monitor and reset circuit that offers adjustable threshold voltage options, low power consumption, and a small package size. It finds applications in various fields, ensuring reliable operation and protection against unstable power supply conditions.