MAX6834VXRD3+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy voltage monitoring
• Package: 6-pin SOT23
• Essence: Provides reset output during power-up, power-down, and brownout conditions
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 3.30V, 4.38V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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

Functional Features

• Monitors the supply voltage and asserts a reset signal when it falls below the specified threshold.
• Provides a manual reset input for external system reset control.
• Offers a wide range of reset threshold voltage and timeout period options for flexibility in different applications.
• Low quiescent current consumption makes it suitable for battery-powered devices.
• Small package size allows for space-efficient designs.

Advantages

• High accuracy in voltage monitoring ensures reliable system operation.
• Wide operating voltage range enables compatibility with various power supply configurations.
• Flexible reset threshold voltage and timeout period options cater to different application requirements.
• Low-power consumption extends battery life in portable devices.
• Compact package size saves board space in tight designs.

Disadvantages

• Limited number of reset threshold voltage and timeout period options may not cover all possible application scenarios.
• Lack of additional features, such as hysteresis adjustment, may limit its suitability for certain specialized applications.

Working Principles

The MAX6834VXRD3+T is a voltage supervisor IC that continuously monitors the supply voltage. It compares the voltage level with the preset threshold value. When the supply voltage falls below the threshold, the IC asserts a reset signal on the RESET pin. This reset signal remains active until the supply voltage rises above the threshold or the reset timeout period elapses.

The manual reset input (MR) allows an external signal to force a system reset. This feature provides flexibility in system control and allows for manual intervention when necessary.

Detailed Application Field Plans

The MAX6834VXRD3+T finds applications in various fields where reliable voltage monitoring and system reset functionality are crucial. Some potential application areas include:

1. Microcontroller-based systems: Ensures proper initialization and safe operation of microcontrollers by providing a reset signal during power-up and brownout conditions.

2. Industrial automation: Protects sensitive electronic components from voltage fluctuations and ensures uninterrupted operation of critical industrial equipment.

3. Automotive electronics: Monitors the vehicle's power supply and triggers a reset if the voltage drops below a safe level, preventing system malfunctions.

4. Battery-powered devices: Maximizes battery life by resetting the system when the battery voltage reaches a critical level, preventing damage to the battery and ensuring proper shutdown.

Detailed and Complete Alternative Models

1. MAX6835VXRD3+T: Similar to MAX6834VXRD3+T but offers different reset threshold voltage and timeout period options.
2. MAX6836VXRD3+T: Voltage supervisor IC with additional hysteresis adjustment feature for enhanced noise immunity.
3. MAX6837VXRD3+T: Provides dual voltage monitoring channels for applications requiring independent supervision of multiple power supplies.

These alternative models offer similar functionality with slight variations in features, allowing designers to choose the most suitable option for their specific requirements.

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