MAX709LCUA+T

Product Overview

Category

MAX709LCUA+T belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage monitoring and power supply control.

Characteristics

• Voltage monitoring and power supply control functionality
• Compact size and low power consumption
• Wide operating temperature range
• High accuracy and reliability

Package

The MAX709LCUA+T is available in a small 8-pin micro leadless package (MLP).

Essence

The essence of MAX709LCUA+T lies in its ability to monitor voltage levels and control power supply, ensuring stable and reliable operation of electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Open-Drain
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 3.6V, 4.0V, 4.5V, 5.0V
• Quiescent Current: 10µA (typical)

Detailed Pin Configuration

1. GND: Ground connection
2. VCC: Power supply input
3. RESET#: Active-low reset output
4. MR#: Manual reset input
5. TH: Threshold voltage selection pin
6. CT: Capacitor connection for reset timeout
7. RESET#: Active-low reset output
8. GND: Ground connection

Functional Features

• Voltage Monitoring: The MAX709LCUA+T continuously monitors the input voltage and provides a reset signal when it falls below a specified threshold.
• Power Supply Control: It ensures proper power supply sequencing and prevents erratic behavior during power-up or power-down events.
• Manual Reset: The MR# pin allows for manual reset control, enabling system restart when necessary.
• Adjustable Threshold Voltage: The TH pin allows the selection of different threshold voltage options to suit specific application requirements.
• Reset Timeout: The CT pin is used to connect an external capacitor that determines the reset timeout period.

Advantages

• Compact Size: The small MLP package enables space-saving integration into various electronic devices.
• Wide Operating Temperature Range: The MAX709LCUA+T can operate reliably in a wide range of temperature conditions.
• High Accuracy: The product provides precise voltage monitoring and reliable power supply control.
• Low Power Consumption: With a quiescent current of only 10µA, it minimizes power consumption in battery-powered applications.

Disadvantages

• Limited Threshold Voltage Options: The available threshold voltage options may not cover all possible application requirements.
• Lack of Built-in Hysteresis: The absence of hysteresis in the voltage monitoring circuitry may lead to potential instability in certain scenarios.

Working Principles

The MAX709LCUA+T operates by continuously monitoring the input voltage using a voltage comparator. When the voltage falls below the selected threshold, the reset output is activated, indicating a low-voltage condition. The reset remains active until the voltage rises above the threshold or a reset timeout occurs. The device also incorporates power-on reset circuitry to ensure proper power supply sequencing during startup.

Detailed Application Field Plans

The MAX709LCUA+T finds applications in various electronic systems where voltage monitoring and power supply control are critical. Some specific application fields include:

1. Battery-Powered Devices: Portable electronics, such as smartphones and tablets, benefit from the voltage monitoring and power supply control provided by MAX709LCUA+T to optimize battery life and prevent damage due to low voltage conditions.
2. Industrial Control Systems: The product ensures reliable operation of control systems by monitoring power supply voltages and initiating appropriate actions in case of voltage deviations.
3. Automotive Electronics: In automotive applications, the MAX709LCUA+T helps maintain stable power supply levels for critical components, enhancing overall system performance and safety.

Detailed and Complete Alternative Models

1. MAX708SCPA+: This alternative model offers similar voltage monitoring and power supply control features but comes in a different package (8-pin plastic DIP).
2. MAX811TEUS+: This alternative model provides additional features like manual reset input and adjustable reset timeout period, making it suitable for more complex applications. It is available in a 10-pin µMAX package.

(Note: The above alternative models are provided for reference purposes and may have slight variations in specifications and pin configuration.)

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