MAX809LEUR/GG8

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, reset output, manual reset input, watchdog timer, small package size
• Package: SOT-23-3
• Essence: Ensures reliable system operation by monitoring the power supply voltage and generating a reset signal when the voltage falls below a specified threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Voltage Options: 2.93V, 3.08V, 3.15V, 3.30V, 3.45V, 4.38V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX809LEUR/GG8 has three pins:

1. VCC: Power supply input pin
2. GND: Ground reference pin
3. RESET: Reset output pin

Functional Features

• Monitors the power supply voltage continuously
• Generates a reset signal when the voltage drops below the specified threshold
• Provides a manual reset input for external control
• Includes a watchdog timer to detect system malfunctions
• Low quiescent current consumption for power-sensitive applications

Advantages and Disadvantages

Advantages: - Small package size allows for space-efficient designs - Wide supply voltage range enables compatibility with various systems - Multiple reset threshold and timeout period options provide flexibility - Low-power operation extends battery life in portable devices

Disadvantages: - Limited number of reset threshold voltage options - Lack of adjustable reset timeout period

Working Principles

The MAX809LEUR/GG8 operates by comparing the power supply voltage with a reference threshold. When the voltage falls below the threshold, the reset output is activated, indicating a power failure or unstable condition. The reset signal remains active until the voltage rises above the threshold or a manual reset input is triggered.

Detailed Application Field Plans

The MAX809LEUR/GG8 is commonly used in various electronic systems where reliable operation is critical. Some application fields include:

1. Microcontrollers and Microprocessors: Ensures proper system initialization and prevents erratic behavior during power-up or voltage fluctuations.
2. Industrial Control Systems: Monitors power supply integrity to prevent damage or data corruption in critical control applications.
3. Automotive Electronics: Protects sensitive components from voltage drops or transients, ensuring stable operation of vehicle systems.
4. Battery-Powered Devices: Maximizes battery life by preventing excessive discharge and maintaining safe operating conditions.

Detailed and Complete Alternative Models

1. MAX809SEUR+: Similar features and specifications, but with a different package (SOT-23-5).
2. MAX811TEUS+: Offers additional features such as a manual reset timeout period and adjustable reset threshold voltage.
3. MAX810MEUR+: Provides a push-pull reset output instead of an open-drain configuration.

Note: This is not an exhaustive list, and there may be other alternative models available from different manufacturers.

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