MAX809SN232T1G

Product Overview

• Category: Integrated Circuit
• Use: Voltage Monitor
• Characteristics: Low Power, Precision, Reset Output
• Package: SOT-23
• Essence: Supervisory Circuit
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Voltage Options: 2.32V, 2.93V, 3.08V, 4.63V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX809SN232T1G is a 3-pin device with the following pin configuration:

1. GND (Ground)
2. RESET (Reset Output)
3. VCC (Supply Voltage)

Functional Features

• Monitors the supply voltage and asserts the reset output when the voltage drops below the specified threshold.
• Provides a precision voltage reference for accurate monitoring.
• Offers a wide range of reset threshold voltage and timeout period options for flexibility in different applications.
• Low power consumption ensures minimal impact on overall system power budget.

Advantages and Disadvantages

Advantages

• Compact SOT-23 package allows for space-efficient integration into various designs.
• Wide supply voltage range enables compatibility with different power sources.
• Precision monitoring ensures reliable operation of the target system.
• Multiple threshold voltage and timeout period options provide versatility for diverse applications.

Disadvantages

• Limited to voltage monitoring functionality and does not offer additional features.
• Requires an external pull-up resistor for proper operation.

Working Principles

The MAX809SN232T1G operates by continuously monitoring the supply voltage. When the voltage drops below the specified threshold, the reset output is asserted, indicating a power failure or an out-of-range condition. The reset output remains active until the voltage rises above the threshold and the timeout period elapses.

Detailed Application Field Plans

The MAX809SN232T1G finds applications in various fields where reliable voltage monitoring is crucial. Some potential application areas include:

1. Battery-Powered Devices: Ensures proper shutdown or system reset when the battery voltage reaches critical levels.
2. Microcontroller Systems: Provides a fail-safe mechanism to prevent erratic behavior due to unstable power supply conditions.
3. Industrial Control Systems: Monitors power supply integrity to avoid damage to sensitive equipment during voltage fluctuations.
4. Automotive Electronics: Protects electronic components from voltage dips or spikes, ensuring stable operation of vehicle systems.

Detailed and Complete Alternative Models

• MAX809SEUR+T: SOT-23 package, 1.25V threshold voltage, 140ms timeout period
• MAX809TEXR+T: SOT-23 package, 2.63V threshold voltage, 560ms timeout period
• MAX809REXR+T: SOT-23 package, 3.08V threshold voltage, 1120ms timeout period
• MAX809MEUR+T: SOT-23 package, 4.38V threshold voltage, 2240ms timeout period

These alternative models offer different threshold voltage and timeout period options to cater to specific application requirements.

In conclusion, the MAX809SN232T1G is a voltage monitor integrated circuit with precision monitoring capabilities. Its compact package, wide supply voltage range, and flexible configuration options make it suitable for various applications. However, it is important to consider its limitations, such as the need for an external pull-up resistor and its dedicated functionality.