MAX6385XS31D2-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low-Power, Precision, Adjustable Threshold
• Package: SOT23-5
• Essence: Monitors voltage levels and provides a digital output when the voltage exceeds a set threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6V
• 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)

Pin Configuration

The MAX6385XS31D2-T has a total of 5 pins:

1. GND: Ground connection
2. VCC: Supply voltage input
3. TH: Threshold voltage adjustment pin
4. RESET: Active-low open-drain reset output
5. MR: Manual reset input

Functional Features

• Monitors the supply voltage and asserts the RESET signal when it falls below the programmed threshold.
• The threshold voltage can be adjusted using an external resistor divider connected to the TH pin.
• Provides a manual reset option through the MR pin.
• The active-low open-drain RESET output can be connected to other devices for system-level monitoring.

Advantages and Disadvantages

Advantages: - Low-power consumption makes it suitable for battery-powered applications. - Adjustable threshold voltage allows flexibility in monitoring different voltage levels. - Small package size enables space-saving designs. - Wide operating temperature range ensures reliable performance in various environments.

Disadvantages: - Limited accuracy compared to more precise voltage monitoring ICs. - Lack of built-in hysteresis may result in oscillations near the threshold voltage.

Working Principles

The MAX6385XS31D2-T operates by comparing the supply voltage with a programmable threshold voltage. When the supply voltage drops below the set threshold, the RESET output is asserted low. The threshold voltage can be adjusted using an external resistor divider connected to the TH pin. The device continuously monitors the supply voltage and keeps the RESET output low until the voltage rises above the threshold.

Detailed Application Field Plans

The MAX6385XS31D2-T is commonly used in various applications where voltage monitoring is critical. Some potential application fields include:

1. Battery-Powered Devices: Ensuring proper operation and preventing damage due to low battery voltage.
2. Power Management Systems: Monitoring power supply voltages to protect sensitive components.
3. Industrial Control Systems: Detecting voltage fluctuations to trigger appropriate actions or alarms.
4. Automotive Electronics: Overvoltage/undervoltage protection for automotive systems.
5. Home Automation: Voltage monitoring for smart home devices and appliances.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX6385XS31D2-T are:

1. MAX6384XS29D3-T
2. MAX6386XS35D1-T
3. MAX6387XS39D2-T
4. MAX6388XS43D3-T

These alternatives provide voltage monitoring capabilities with different threshold voltage options and package sizes, allowing designers to choose the most suitable option for their specific requirements.

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