MAX6447UK29L+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics:
  • Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a certain threshold.
  • Provides a reliable way to ensure proper operation of electronic systems by resetting them in case of power supply issues.
• Package: SOT23-5
• Essence: Voltage monitoring and reset functionality in a compact package.
• Packaging/Quantity: Tape and Reel, 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.9V
• Reset Timeout Period: Adjustable or Fixed options available
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

The MAX6447UK29L+T IC has the following pin configuration:

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Pin Description: 1. GND: Ground connection 2. MR: Manual Reset input 3. RESET: Reset output 4. VCC: Power supply input 5. TH: Threshold voltage selection pin

Functional Features

• Monitors the voltage level of the power supply continuously.
• Generates a reset signal when the voltage falls below the threshold.
• Provides an adjustable or fixed reset timeout period.
• Offers a manual reset option for immediate system reset.
• Low quiescent current consumption for power efficiency.

Advantages and Disadvantages

Advantages: - Compact package size allows for space-saving designs. - Wide supply voltage range enables compatibility with various systems. - Adjustable reset timeout period provides flexibility. - Manual reset option allows for immediate system recovery.

Disadvantages: - Limited threshold voltage options may not suit all applications. - Not suitable for high-voltage applications (above 5.5V).

Working Principles

The MAX6447UK29L+T monitors the voltage level of the power supply by comparing it with the threshold voltage set on the TH pin. When the voltage falls below the threshold, the RESET pin is pulled low, generating a reset signal. The reset timeout period determines how long the reset signal remains active after the voltage returns to normal. The MR pin allows for manual reset, overriding the automatic reset functionality.

Detailed Application Field Plans

The MAX6447UK29L+T is commonly used in various electronic systems where reliable voltage monitoring and reset functionality are required. Some application fields include:

1. Microcontrollers: Ensuring proper system initialization and recovery.
2. Industrial Control Systems: Preventing data corruption during power supply fluctuations.
3. Medical Devices: Guaranteeing safe operation and patient well-being.
4. Automotive Electronics: Protecting sensitive components from power supply issues.
5. Home Automation: Maintaining system stability and preventing malfunctions.

Detailed and Complete Alternative Models

1. MAX6448UK29L+T: Similar to MAX6447UK29L+T but with different threshold voltage options.
2. MAX6449UK29L+T: Voltage monitor and reset circuit with additional features like watchdog timer.
3. MAX6450UK29L+T: Higher voltage range version suitable for automotive applications.

These alternative models offer similar functionality with slight variations to cater to specific requirements.

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