MAX6439UTEHRD3+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, reset output
• Package: 6-pin SOT23
• Essence: Monitors the voltage level of a power supply and provides a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period: Adjustable or Fixed (140ms, 280ms, 560ms, 1120ms)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND: Ground connection
2. MR: Manual Reset input
3. VCC: Power supply input
4. RESET: Reset output
5. TH: Threshold voltage selection pin
6. NC: No Connection

Functional Features

• Voltage Monitoring: The MAX6439UTEHRD3+T monitors the voltage level of the power supply connected to it.
• Reset Output: When the voltage falls below the set threshold, the IC generates a reset signal on the RESET pin.
• Manual Reset: The MR pin allows for manual resetting of the device.
• Adjustable Timeout Period: The reset timeout period can be adjusted using external components or set to fixed values.
• Low Power Consumption: The IC operates with low power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring - Adjustable or fixed reset timeout period - Low power consumption - Small package size

Disadvantages: - Limited threshold voltage options - Noisy environments may affect voltage monitoring accuracy

Working Principles

The MAX6439UTEHRD3+T operates by continuously monitoring the voltage level of the power supply connected to it. It compares the supply voltage with the set threshold voltage. When the supply voltage falls below the threshold, the IC generates a reset signal on the RESET pin. The reset timeout period determines how long the reset signal remains active after the voltage returns above the threshold.

Detailed Application Field Plans

1. Battery-Powered Devices: The MAX6439UTEHRD3+T can be used in portable electronic devices powered by batteries to ensure proper functioning and prevent data loss during low battery conditions.
2. Microcontroller Systems: It is commonly employed in microcontroller-based systems to provide a reliable reset signal when the power supply voltage drops below a certain level.
3. Industrial Control Systems: The IC finds applications in industrial control systems where voltage monitoring and reset functionality are crucial for maintaining system integrity.

Detailed and Complete Alternative Models

1. MAX6439UTEHSD3+T: Similar to MAX6439UTEHRD3+T but with fixed reset timeout period of 140ms.
2. MAX6439UTEHVD3+T: Similar to MAX6439UTEHRD3+T but with adjustable reset timeout period and additional voltage detection features.
3. MAX6439UTEHLD3+T: Similar to MAX6439UTEHRD3+T but with lower operating temperature range (-40°C to +125°C).

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