MAX6835VXSD0+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

Detailed Pin Configuration

The MAX6835VXSD0+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 MAX6835VXSD0+T accurately monitors the supply voltage and provides a reset signal when it falls below the specified threshold.
• Power-up and power-down reset: The device generates a reset pulse during power-up and power-down sequences, ensuring proper initialization and shutdown of the system.
• Brownout detection: The voltage supervisor detects brownout conditions, where the supply voltage drops below a certain level, and asserts the reset output 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.

Advantages and Disadvantages

Advantages: - Low-power operation - Precision voltage monitoring - Small package size - Adjustable threshold and timeout

Disadvantages: - Limited supply voltage range (1.6V to 5.5V) - Fixed number of threshold and timeout options

Working Principles

The MAX6835VXSD0+T operates by comparing the supply voltage with a reference voltage set by the threshold input. When the supply voltage falls below the threshold, the reset output is asserted. The reset remains active until the supply voltage rises above the threshold or the timeout period elapses.

The device uses an internal voltage reference and comparator to monitor the supply voltage. The threshold and timeout inputs allow customization for different voltage levels and timing requirements.

Detailed Application Field Plans

The MAX6835VXSD0+T is commonly used in various applications where reliable voltage monitoring is critical. Some potential application fields include:

1. Microcontrollers: Ensuring proper initialization and shutdown of microcontroller-based systems.
2. Power supplies: Protecting sensitive components from brownout conditions and ensuring stable power delivery.
3. Industrial control systems: Monitoring supply voltages in industrial automation and control systems to prevent malfunctions.
4. Battery-powered devices: Detecting low battery conditions and triggering appropriate actions.
5. Automotive electronics: Providing voltage supervision in automotive applications to ensure safe and reliable operation.

Detailed and Complete Alternative Models

1. MAX6834VXSD0+T: Similar to MAX6835VXSD0+T but with different reset timeout period options.
2. MAX6836VXSD0+T: Voltage supervisor with additional features such as watchdog timer and manual reset input.
3. MAX6837VXSD0+T: Dual voltage supervisor with independent threshold and timeout settings for two separate voltage inputs.

These alternative models offer similar functionality with slight variations in specifications and additional features, providing flexibility for different application requirements.

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