MAX6387XS31D1+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low-power, precision voltage monitoring
• Package: SOT23-5
• Essence: Monitors supply voltages and provides a reset signal when the voltage falls below a specified threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6.0V
• Threshold Voltage Options: 2.93V, 3.08V, 3.30V, 4.63V, 4.38V, 4.50V
• Reset Timeout Options: 100ms, 200ms, 400ms, 800ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 2µA (typical)

Pin Configuration

The MAX6387XS31D1+T has a total of 5 pins:

1. GND: Ground connection
2. MR: Manual Reset input pin
3. RESET: Active-low reset output
4. VCC: Positive supply voltage
5. TH: Threshold voltage selection pin

Functional Features

• Monitors the supply voltage and generates a reset signal when it drops below the selected threshold voltage.
• Provides a manual reset option through the MR pin.
• Low quiescent current consumption for power-sensitive applications.
• Wide operating voltage range allows for versatile use in various systems.

Advantages and Disadvantages

Advantages

• Precise voltage monitoring ensures reliable system operation.
• Low-power design extends battery life in portable devices.
• Small package size enables space-constrained applications.
• Multiple threshold voltage and reset timeout options provide flexibility.

Disadvantages

• Limited to monitoring a single supply voltage.
• Requires an external pull-up resistor for the MR pin.

Working Principles

The MAX6387XS31D1+T operates by comparing the supply voltage with the selected threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, indicating a power failure or low voltage condition. The manual reset input allows the user to override the reset signal if needed. The IC consumes minimal quiescent current, making it suitable for battery-powered devices.

Detailed Application Field Plans

The MAX6387XS31D1+T finds applications in various fields, including:

1. Battery-powered devices: Provides voltage monitoring and reset functionality to ensure proper operation and prevent data loss during low voltage conditions.
2. Industrial control systems: Monitors power supply voltages in critical equipment, triggering a reset when necessary to maintain system integrity.
3. Automotive electronics: Ensures reliable operation of vehicle systems by monitoring supply voltages and initiating resets in case of voltage fluctuations.
4. Consumer electronics: Protects sensitive components from damage due to voltage drops, enhancing the overall reliability of electronic devices.

Detailed and Complete Alternative Models

1. MAX6386XS31D1+T: Similar to MAX6387XS31D1+T but with different threshold voltage options.
2. MAX6388XS31D1+T: Offers additional features such as adjustable reset timeout and watchdog timer functionality.
3. MAX6389XS31D1+T: Provides higher accuracy voltage monitoring with tighter threshold voltage tolerances.

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