MAX6834HXRD0+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Supervisor
• Characteristics: Low-power, voltage monitoring, reset output, watchdog timer
• Package: 6-pin SOT23
• Essence: Provides power supply supervision and reset generation for microprocessors, microcontrollers, and other digital systems.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 3.08V, 3.45V, 4.38V
• Watchdog Timeout Period: 1.6s, 40s, 160s, 640s
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6834HXRD0+T has the following pin configuration:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive supply voltage
5. WDI: Watchdog input
6. NC: No connection

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below the specified threshold.
• Provides a watchdog timer function to detect system malfunctions and initiate a system reset if necessary.
• Offers a manual reset input for external reset control.
• Low-power consumption, suitable for battery-powered applications.
• Small package size allows for space-efficient designs.

Advantages and Disadvantages

Advantages: - Reliable power supply supervision ensures proper operation of digital systems. - Flexible options for reset threshold voltage and watchdog timeout period. - Easy integration into various microprocessor-based systems. - Low-power operation extends battery life in portable devices.

Disadvantages: - Limited to 6-pin SOT23 package, may not be suitable for all applications. - Requires external components for proper functionality.

Working Principles

The MAX6834HXRD0+T monitors the supply voltage using an internal voltage reference and comparator. When the supply voltage drops below the programmed threshold, the reset output is activated, signaling a system reset. The watchdog timer function periodically checks for system activity by monitoring the WDI input. If no activity is detected within the specified timeout period, a system reset is triggered.

Detailed Application Field Plans

The MAX6834HXRD0+T is commonly used in various applications, including:

1. Microprocessor-based systems
2. Microcontroller-based systems
3. Digital systems requiring reliable power supply supervision
4. Battery-powered devices
5. Embedded systems
6. Industrial control systems

Detailed and Complete Alternative Models

1. MAX6833: Similar power supply supervisor with different pin configuration.
2. MAX6818: Power supply supervisor with additional features like power-fail detection.
3. MAX809: Voltage monitor with adjustable reset threshold and manual reset input.

These alternative models offer similar functionality and can be considered as substitutes for the MAX6834HXRD0+T depending on specific requirements.

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