MAX6834IXRD0+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy, reset output, watchdog timer
• Package: 6-pin SOT23
• Essence: Monitors the power supply voltage and generates a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.5V, 3.08V, 3.3V, 3.63V, 4.38V, 4.63V
• 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. N/C: No connection

Functional Features

• Monitors the power supply voltage and asserts the reset output when the voltage drops below the selected threshold.
• Provides a manual reset input for external system control.
• Includes a watchdog timer to detect system malfunctions and initiate a reset if necessary.
• Low-power consumption for battery-powered applications.
• High accuracy in voltage monitoring.

Advantages

• Wide supply voltage range allows compatibility with various systems.
• Multiple reset threshold options provide flexibility for different voltage requirements.
• Reset timeout period options cater to different system response times.
• Small package size enables space-saving designs.
• Low-power operation extends battery life.
• Accurate voltage monitoring ensures reliable system operation.

Disadvantages

• Limited number of reset threshold and timeout period options.
• Manual reset input may require additional external components for proper functionality.

Working Principles

The MAX6834IXRD0+T is a voltage supervisor IC that continuously monitors the power supply voltage. It compares the voltage with the selected threshold and generates a reset signal when the voltage falls below this threshold. The reset output remains asserted until the voltage rises above the threshold or a manual reset is applied.

Additionally, the IC includes a watchdog timer that detects system malfunctions. If the system fails to toggle the watchdog input within the specified timeout period, the IC initiates a reset to restore normal operation.

Detailed Application Field Plans

The MAX6834IXRD0+T finds applications in various electronic systems where reliable power supply monitoring is crucial. Some potential application fields include:

1. Microcontrollers: Ensuring proper system initialization and preventing erratic behavior during power-up or voltage fluctuations.
2. Industrial Control Systems: Monitoring critical power supplies to prevent damage or data loss in industrial automation equipment.
3. Automotive Electronics: Protecting sensitive electronic components from voltage dips or spikes in automotive systems.
4. Battery-Powered Devices: Extending battery life by initiating a shutdown or hibernation mode when the battery voltage drops below a safe level.
5. Communication Equipment: Preventing data corruption or system crashes due to unstable power supply conditions.

Detailed and Complete Alternative Models

1. MAX6833: Similar voltage supervisor IC with different package options (SOT23-5, SOT23-6).
2. MAX6381: Voltage monitor with integrated power-on reset and adjustable reset threshold.
3. MAX809: Microprocessor supervisory circuit with manual reset input and watchdog timer.
4. MAX16046: Dual-voltage monitor with adjustable thresholds and reset outputs.
5. MAX6717: Ultra-low-power voltage monitor with selectable reset timeout periods.

(Note: This list is not exhaustive and serves as a starting point for exploring alternative models.)

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