MAX6444US29L+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Reset Output
• Package: SOT-23-5
• Essence: MAX6444US29L+T is a voltage supervisor IC designed to monitor the power supply voltage of electronic systems and provide a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: The MAX6444US29L+T is available in a tape and reel packaging with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage: 2.93V
• Reset Timeout Period: 140ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

The MAX6444US29L+T has a total of five pins:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive power supply
5. RESET#: Open-drain reset output

Functional Features

• Monitors the power supply voltage and generates a reset signal when it falls below the threshold voltage.
• Provides a manual reset input for external control of the reset function.
• Offers an open-drain reset output for connecting multiple devices in a wired-OR configuration.
• Low quiescent current makes it suitable for battery-powered applications.
• Precision monitoring ensures accurate detection of voltage variations.

Advantages and Disadvantages

Advantages: - Low power consumption - Precise voltage monitoring - Small package size - Manual reset capability - Wired-OR configuration support

Disadvantages: - Limited supply voltage range (1.6V to 5.5V) - Fixed threshold voltage (2.93V)

Working Principles

The MAX6444US29L+T operates by continuously monitoring the power supply voltage using an internal voltage reference and comparator. When the voltage drops below the threshold level, the reset output is activated, indicating a power failure or unstable voltage condition. The manual reset input allows external control of the reset function, while the open-drain reset output enables multiple devices to be connected in a wired-OR configuration.

Detailed Application Field Plans

The MAX6444US29L+T is commonly used in various electronic systems where reliable voltage monitoring and reset functionality are required. Some typical application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial automation
4. Power management circuits
5. Battery-powered devices

Detailed and Complete Alternative Models

1. MAX6444US29L+T: The specific model discussed in this entry.
2. MAX6444US30L+T: Similar to MAX6444US29L+T but with a different threshold voltage (3.0V).
3. MAX6444US28L+T: Similar to MAX6444US29L+T but with a different threshold voltage (2.8V).
4. MAX6444US27L+T: Similar to MAX6444US29L+T but with a different threshold voltage (2.7V).

These alternative models provide flexibility in selecting the desired threshold voltage for specific applications.

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