MAX6833VXRD0+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: 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)

Detailed Pin Configuration

The MAX6833VXRD0+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. TH: Threshold voltage selection input
6. TO: Reset timeout period selection input

Functional Features

• Precision voltage monitoring: The MAX6833VXRD0+T accurately monitors the supply voltage and provides a reset signal when it falls below a specified threshold.
• Power-up and power-down reset: The device generates a reset signal during power-up and power-down sequences, ensuring proper initialization and shutdown of the system.
• Brownout detection: The MAX6833VXRD0+T detects brownout conditions, where the supply voltage drops below a certain level, and asserts the reset signal to prevent erratic operation.
• Adjustable threshold and timeout: The threshold voltage and reset timeout period can be selected using external resistors, allowing customization for different applications.
• Low-power operation: With a quiescent current of only 1.5µA, the MAX6833VXRD0+T minimizes power consumption in battery-powered systems.

Advantages and Disadvantages

Advantages: - Accurate voltage monitoring - Flexible threshold and timeout options - Low-power operation - Small package size

Disadvantages: - Limited number of threshold and timeout options - Requires external resistors for customization

Working Principles

The MAX6833VXRD0+T operates by comparing the supply voltage with a reference voltage set by the threshold input (TH). When the supply voltage falls below the threshold, the reset output (RESET) is asserted low. The reset signal remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

The device also features a manual reset input (MR), which allows an external signal to force a reset regardless of the supply voltage. This can be useful during system testing or recovery from fault conditions.

Detailed Application Field Plans

The MAX6833VXRD0+T is commonly used in various applications where reliable voltage monitoring is critical. Some potential application fields include:

1. Battery-Powered Systems: The voltage supervisor ensures proper shutdown and prevents damage to sensitive components when the battery voltage drops too low.
2. Microcontroller Systems: The reset signal provided by the MAX6833VXRD0+T ensures proper initialization and prevents erratic behavior during power-up and brownout conditions.
3. Industrial Control Systems: Voltage monitoring is essential in industrial environments to ensure stable operation and prevent damage to equipment.

Detailed and Complete Alternative Models

1. MAX6834VXRD0+T: Similar to the MAX6833VXRD0+T, but with additional features such as adjustable hysteresis and watchdog timer functionality.
2. MAX6835VXRD0+T: Provides dual voltage monitoring channels, making it suitable for applications requiring monitoring of multiple power supplies.
3. MAX6836VXRD0+T: Offers a wider supply voltage range and extended temperature range compared to the MAX6833VXRD0+T.

These alternative models provide similar voltage monitoring capabilities with additional features tailored to specific application requirements.

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