MAX6834FXRD2+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, precision 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: 1.6V to 5.5V
• Reset Threshold Voltage Options: 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period Options: 140ms, 280ms, 560ms, 1120ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6834FXRD2+T features 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. TH: Threshold voltage selection input
6. TO: Reset timeout period selection input

Functional Features

• Precision voltage monitoring: The MAX6834FXRD2+T accurately monitors the supply voltage and provides a reset signal when it falls below the specified threshold.
• Power-up reset: The device generates a reset pulse during power-up, ensuring proper initialization of the system.
• Power-down reset: When the supply voltage drops below the threshold, the MAX6834FXRD2+T asserts the reset output, preventing erratic behavior during power-down.
• Brownout detection: The IC detects brownout conditions, where the supply voltage is lower than the specified threshold, and triggers a reset to protect the system.

Advantages and Disadvantages

Advantages: - Low-power operation - Wide supply voltage range - Multiple threshold and timeout options for flexibility - Small package size for space-constrained applications

Disadvantages: - Limited to voltage monitoring and reset functionality, not suitable for complex power management tasks - Requires external components for proper operation

Working Principles

The MAX6834FXRD2+T operates by comparing the supply voltage with the selected threshold voltage. If the supply voltage drops below the threshold, the device asserts the reset output. The reset remains active until the supply voltage rises above the threshold or the timeout period elapses.

The manual reset input (MR) allows the system to force a reset regardless of the supply voltage. This feature is useful during system testing or when a controlled reset is required.

Detailed Application Field Plans

The MAX6834FXRD2+T finds applications in various fields, including:

1. Embedded Systems: Provides reliable power-up and power-down sequencing for microcontrollers, ensuring proper initialization and shutdown.
2. Industrial Control: Monitors supply voltage in industrial equipment, preventing damage due to brownout conditions.
3. Automotive Electronics: Ensures stable operation of automotive systems by detecting and resetting during voltage fluctuations.
4. Battery-Powered Devices: Protects battery-powered devices from undervoltage conditions, extending battery life.

Detailed and Complete Alternative Models

1. MAX6835FXRD2+T: Similar to MAX6834FXRD2+T but with additional features such as watchdog timer and adjustable reset timeout.
2. MAX6836FXRD2+T: Offers higher precision voltage monitoring and wider supply voltage range compared to MAX6834FXRD2+T.
3. MAX6837FXRD2+T: Provides dual voltage monitoring channels for increased system reliability.

These alternative models offer similar functionality to the MAX6834FXRD2+T but may have additional features or improved specifications based on specific application requirements.

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