MAX6385XS42D6-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low-power, Precision, Adjustable Threshold
• Package: SOT23-6
• 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: 1.8V to 5.5V
• Threshold Voltage Options: Adjustable from 1.22V to 5.0V 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 MAX6385XS42D6-T has a total of six pins arranged as follows:

____ VCC| |GND NC | |OUT NC | |TH NC | |MR |____|

• VCC: Power supply input pin
• GND: Ground pin
• OUT: Digital output pin
• TH: Threshold adjustment pin
• MR: Manual reset pin
• NC: No connection

Functional Features

• Monitors the voltage level at the TH pin and compares it with the internally set threshold voltage.
• Provides an active-low digital output on the OUT pin when the monitored voltage falls below the threshold.
• The threshold voltage can be adjusted by connecting external resistors to the TH pin.
• Includes a manual reset function that allows the user to force a reset by pulling the MR pin low.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for use in various applications. - Low quiescent current makes it suitable for battery-powered devices. - Adjustable threshold voltage provides flexibility. - Small package size enables space-saving designs.

Disadvantages: - Limited accuracy compared to some other voltage monitoring ICs. - Lack of built-in hysteresis may result in unstable output near the threshold voltage.

Working Principles

The MAX6385XS42D6-T operates by comparing the voltage at the TH pin with the internally set threshold voltage. When the monitored voltage falls below the threshold, the OUT pin is driven low, indicating a voltage fault condition. The threshold voltage can be adjusted by connecting external resistors to the TH pin, allowing customization for specific applications. The MR pin provides a manual reset function, enabling the user to force a reset when necessary.

Detailed Application Field Plans

The MAX6385XS42D6-T is commonly used in various applications where voltage monitoring is critical. Some potential application fields include:

1. Battery-Powered Devices: Ensuring proper battery voltage levels to prevent damage or unexpected shutdowns.
2. Power Supply Units: Monitoring input and output voltages to protect sensitive components from overvoltage or undervoltage conditions.
3. Industrial Control Systems: Detecting abnormal voltage levels in control circuits to trigger appropriate actions or alarms.
4. Automotive Electronics: Monitoring vehicle battery voltage to prevent excessive discharge and ensure reliable operation.
5. Home Automation: Voltage monitoring in smart home systems to enhance safety and prevent equipment malfunction.

Detailed and Complete Alternative Models

1. MAX6384XS42D6-T: Similar to MAX6385XS42D6-T but with a fixed threshold voltage of 4.2V.
2. MAX6386XS42D6-T: Similar to MAX6385XS42D6-T but with a fixed threshold voltage of 4.2V and an active-high output.

These alternative models provide options for different threshold voltage requirements or output polarities while maintaining similar functionality.

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