MAX809LEXR+T10

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, reset output, precision voltage reference
• Package: SOT-23-3
• Essence: Monolithic microprocessor supervisory circuit
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Voltage Options: 2.93V, 3.08V, 3.15V, 3.30V, 4.38V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 5µA (typical)

Detailed Pin Configuration

The MAX809LEXR+T10 has a SOT-23-3 package with the following pin configuration:

• Pin 1: GND (Ground)
• Pin 2: RESET (Reset Output)
• Pin 3: VCC (Supply Voltage)

Functional Features

• Monitors the supply voltage and asserts a reset signal when the voltage drops below a specified threshold.
• Provides a precision voltage reference for accurate monitoring.
• Low quiescent current consumption makes it suitable for battery-powered applications.
• Small form factor package allows for space-efficient designs.

Advantages

• Wide supply voltage range enables compatibility with various systems.
• Multiple reset threshold voltage options provide flexibility in design.
• Low quiescent current consumption prolongs battery life.
• Precision voltage reference ensures accurate monitoring.

Disadvantages

• Limited number of reset threshold voltage options may not meet all application requirements.
• SOT-23-3 package may be challenging to solder for some users.

Working Principles

The MAX809LEXR+T10 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 low voltage condition. The precision voltage reference ensures accurate monitoring, while the low quiescent current consumption minimizes power consumption.

Detailed Application Field Plans

The MAX809LEXR+T10 is commonly used in various applications, including:

1. Microcontrollers and microprocessors: Ensures proper system initialization and prevents erratic behavior during power-up or brownout conditions.
2. Battery-powered devices: Monitors battery voltage to prevent damage due to over-discharge and provides a reset signal when the battery voltage is too low.
3. Industrial control systems: Protects sensitive components from voltage fluctuations and ensures reliable operation.
4. Automotive electronics: Monitors the vehicle's electrical system and provides a reset signal in case of voltage drops or fluctuations.

Detailed and Complete Alternative Models

• MAX809REXR+: Similar to MAX809LEXR+T10 but with a different reset threshold voltage range (2.63V, 2.93V, 3.08V, 3.15V, 3.30V).
• MAX811TEXR+: Voltage supervisor with manual reset input and adjustable reset threshold voltage options.
• MAX810SEXRT+: Voltage supervisor with an active-low push-pull reset output and adjustable reset threshold voltage options.

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