MAX6381XR26D4-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low-power, Precision, Adjustable Threshold
• Package: SOT23-4
• Essence: Monitors voltage levels and provides a digital output when the voltage exceeds a set threshold.
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 28V
• Threshold Voltage Options: Adjustable from 1.22V to 5.5V in 100mV steps
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)
• Output Type: Active-Low Open-Drain
• Accuracy: ±1.5% (typical)

Detailed Pin Configuration

The MAX6381XR26D4-T has a SOT23-4 package with the following pin configuration:

____ VDD| | GND| | OUT| | THR|____|

• VDD: Supply Voltage Input
• GND: Ground
• OUT: Digital Output
• THR: Threshold Voltage Adjustment

Functional Features

• Monitors the input voltage and compares it to the threshold voltage set by the THR pin.
• When the input voltage exceeds the threshold voltage, the OUT pin goes low, indicating an overvoltage condition.
• The threshold voltage can be adjusted using an external resistor divider connected to the THR pin.
• Low quiescent current makes it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for versatile use in various applications. - Adjustable threshold voltage provides flexibility in setting the desired voltage level for monitoring. - Low quiescent current minimizes power consumption, making it suitable for low-power applications. - Active-low open-drain output allows for easy interfacing with other digital circuits.

Disadvantages: - Limited accuracy of ±1.5% may not be sufficient for highly precise voltage monitoring applications. - SOT23-4 package may limit heat dissipation capabilities in high-power applications.

Working Principles

The MAX6381XR26D4-T operates by comparing the input voltage to the threshold voltage set by the THR pin. When the input voltage exceeds the threshold voltage, the OUT pin is pulled low, indicating an overvoltage condition. The threshold voltage can be adjusted using an external resistor divider connected to the THR pin. The IC operates with low quiescent current, ensuring minimal power consumption.

Detailed Application Field Plans

The MAX6381XR26D4-T finds applications in various fields, including:

1. Battery-Powered Devices: It can be used to monitor battery voltage levels and provide a warning when they drop below a certain threshold.
2. Power Supply Monitoring: It can be employed to monitor the output voltage of power supplies and detect any deviations from the desired levels.
3. Industrial Control Systems: It can be utilized in industrial control systems to monitor critical voltage levels and trigger appropriate actions in case of overvoltage conditions.
4. Automotive Electronics: It can be integrated into automotive electronics to monitor voltage levels in different subsystems and ensure proper functioning.

Detailed and Complete Alternative Models

1. MAX6381XR26D3-T: Similar to MAX6381XR26D4-T but with active-high open-drain output.
2. MAX6381XR26D5-T: Similar to MAX6381XR26D4-T but with a wider supply voltage range.
3. MAX6381XR26D6-T: Similar to MAX6381XR26D4-T but with higher accuracy.

These alternative models provide options based on specific requirements and can be considered as alternatives to the MAX6381XR26D4-T.

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