MAX6385XS21D4-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 based on the threshold set by the user.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.1V, 2.3V, 2.5V, 2.7V, 2.8V, 3.0V, 3.1V, 3.3V, 3.5V, 3.6V, 3.7V, 3.9V, 4.0V, 4.1V, 4.3V, 4.5V, 4.6V, 4.7V, 4.9V, 5.0V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1µA (typical)
• Output Type: Active-Low Open-Drain
• Accuracy: ±1.5% (typical)

Detailed Pin Configuration

The MAX6385XS21D4-T has a SOT23-4 package with the following pin configuration:

____ VCC| |GND OUT| |TH |____|

• VCC: Power supply input
• GND: Ground reference
• OUT: Digital output indicating the voltage level
• TH: Threshold pin to set the desired voltage threshold

Functional Features

• Monitors the input voltage and compares it with the threshold voltage set by the user.
• Provides a digital output that indicates whether the input voltage is above or below the threshold.
• Active-low open-drain output allows for easy interfacing with other digital circuits.
• Low quiescent current makes it suitable for battery-powered applications.
• Adjustable threshold voltage allows flexibility in different voltage monitoring scenarios.

Advantages and Disadvantages

Advantages: - Wide supply voltage range enables compatibility with various systems. - High accuracy ensures precise voltage monitoring. - Low-power consumption extends battery life in portable devices. - Small package size saves board space. - Adjustable threshold voltage provides versatility.

Disadvantages: - Limited number of threshold voltage options may not cover all specific requirements. - Open-drain output requires an external pull-up resistor for proper signal interpretation.

Working Principles

The MAX6385XS21D4-T operates by comparing the input voltage with the threshold voltage set by the user using the TH pin. When the input voltage exceeds the threshold, the digital output (OUT) is pulled low. Conversely, when the input voltage falls below the threshold, the output remains high impedance. The open-drain output configuration allows for easy integration with other digital circuits.

Detailed Application Field Plans

The MAX6385XS21D4-T finds applications in various fields, including:

1. Battery-Powered Devices: It can be used to monitor battery voltage levels and trigger actions based on the threshold, such as low-battery warnings or system shutdowns.
2. Power Management Systems: It enables voltage monitoring in power supplies, ensuring stable operation and protecting sensitive components from overvoltage or undervoltage conditions.
3. Industrial Control Systems: The IC can be employed to monitor critical voltages in industrial control systems, providing early warning signals for maintenance or fault detection.
4. Automotive Electronics: It finds use in automotive applications to monitor battery voltage, ensuring proper charging and preventing damage to electrical components.

Detailed and Complete Alternative Models

1. MAX6386XS21D4-T: Similar to MAX6385XS21D4-T but with additional features like hysteresis and adjustable delay.
2. MAX6387XS21D4-T: Offers a wider range of threshold voltage options compared to MAX6385XS21D4-T.
3. MAX6388XS21D4-T: Provides higher accuracy and lower quiescent current than MAX6385XS21D4-T.
4. MAX6389XS21D4-T: Includes built-in power-on reset functionality along with voltage monitoring capabilities.

These alternative models offer different combinations of features and specifications, allowing users to choose the most suitable option for their specific requirements.

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