MAX6381XR31D2-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low-power, precision voltage monitoring
• Package: SOT23-5
• Essence: Monitors the voltage level and provides a digital output when it falls below a certain threshold
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6V
• Threshold Voltage Options: 3.1V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1µA (typical)
• Output Type: Active-Low Open-Drain
• Accuracy: ±1.5% (typical)

Pin Configuration

The MAX6381XR31D2-T has a total of 5 pins:

1. GND: Ground connection
2. OUT: Digital output indicating the voltage level
3. RST: Reset input for external devices
4. VCC: Supply voltage input
5. N/C: No Connection (unused pin)

Functional Features

• Monitors the supply voltage continuously
• Provides a digital output signal when the voltage drops below the threshold
• Active-low open-drain output allows easy interfacing with other devices
• Low quiescent current ensures minimal power consumption
• High accuracy ensures precise voltage monitoring

Advantages

• Wide supply voltage range allows versatile applications
• Small package size enables space-saving designs
• Low quiescent current prolongs battery life in portable devices
• Accurate voltage monitoring prevents damage to sensitive components

Disadvantages

• Limited threshold voltage options may not suit all applications
• Open-drain output requires an external pull-up resistor for proper operation

Working Principles

The MAX6381XR31D2-T operates by comparing the supply voltage with a fixed threshold voltage. When the supply voltage drops below the threshold, the digital output (OUT pin) is pulled low. This active-low signal can be used to trigger a reset or alert external devices.

Detailed Application Field Plans

• Battery-powered devices: The MAX6381XR31D2-T can be used to monitor the battery voltage and initiate actions when it falls below a critical level, such as displaying a low battery warning or shutting down non-essential functions.
• Power supply monitoring: It can be employed in power supply units to detect voltage fluctuations and protect sensitive components from damage.
• Industrial control systems: The IC can be utilized in various industrial applications where precise voltage monitoring is crucial for safe and reliable operation.

Alternative Models

• MAX6381XR31D3-T: Threshold voltage option of 3.3V
• MAX6381XR31D1-T: Threshold voltage option of 3.0V
• MAX6381XR31D4-T: Threshold voltage option of 3.6V

These alternative models provide different threshold voltage options to suit specific application requirements.

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