MAX809TEUR+TG071

Product Overview

• Category: Integrated Circuits
• Use: Voltage Supervisors
• Characteristics: Low Power, Reset Output, Active-Low, Push-Pull, Open Drain, 3-Pin SOT-23 Package
• Package: SOT-23
• Essence: Voltage monitoring and reset generation
• Packaging/Quantity: Tape & Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.15V, 3.30V, 3.42V, 3.63V, 4.38V, 4.63V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX809TEUR+TG071 has three pins:

1. GND (Ground): Connected to the ground reference of the circuit.
2. RESET (Reset Output): Provides a reset signal to the system when the monitored voltage falls below the threshold.
3. VCC (Supply Voltage): Connected to the positive supply voltage.

Functional Features

• Voltage Monitoring: Monitors the supply voltage and generates a reset signal when it falls below the threshold voltage.
• Reset Output: Provides an active-low reset signal to the system.
• Push-Pull/Open Drain: The reset output can be configured as either push-pull or open-drain.
• Low Power: Consumes very low quiescent current, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Multiple threshold voltage and reset timeout period options provide flexibility. - Low power consumption extends battery life in portable devices.

Disadvantages: - Limited number of threshold voltage and reset timeout period options may not meet the requirements of all applications. - SOT-23 package may limit heat dissipation in high-power applications.

Working Principles

The MAX809TEUR+TG071 is a voltage supervisor IC that continuously monitors the supply voltage. When the voltage falls below the programmed threshold, the reset output is activated, signaling a system reset. The reset output remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The MAX809TEUR+TG071 is commonly used in various applications where reliable voltage monitoring and reset generation are critical. Some typical application fields include:

1. Microcontrollers: Ensuring proper system initialization and preventing erratic behavior during power-up or brownout conditions.
2. Embedded Systems: Providing a controlled reset to ensure stable operation after power disruptions.
3. Industrial Control Systems: Monitoring power supply integrity to prevent damage to sensitive equipment.
4. Automotive Electronics: Resetting microcontrollers and other critical components during voltage fluctuations or transient events.

Detailed and Complete Alternative Models

1. MAX809SEUR+TG071: Same functionality as MAX809TEUR+TG071 but with different threshold voltage and reset timeout period options.
2. MAX810TEUR+TG071: Similar voltage supervisor IC with additional manual reset input feature.
3. MAX811TEUS+TG071: Voltage supervisor IC with adjustable threshold voltage and reset timeout period options.

Note: This is not an exhaustive list, and there are several alternative models available from different manufacturers.

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