MAX706PESA+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX706PESA+ belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for voltage monitoring and reset functions in various electronic devices.

Characteristics

• Voltage monitoring: The MAX706PESA+ is designed to monitor the voltage level of a power supply and provide a reset signal when the voltage falls below a certain threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry is properly reset when the power supply voltage drops or fluctuates.
• Low power consumption: The IC operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide range of input voltages, typically from 1.8V to 5.5V.
• Small package size: The MAX706PESA+ is available in a small surface-mount package, making it suitable for space-constrained designs.

Package and Quantity

The MAX706PESA+ is packaged in an 8-pin small outline integrated circuit (SOIC) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Voltage: Adjustable through external resistors
• Reset Timeout Period: Programmable through external capacitor
• Quiescent Current: 10µA (typical)
• Output Type: Active-low push-pull

Pin Configuration

The MAX706PESA+ has the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Reset Output (Active-low) --| TH TO |-- Pin 3: Threshold Input (Voltage Monitoring) --| CT NC |-- Pin 4: Capacitor Terminal (Reset Timeout) --| GND VCC |-- Pin 5: Power Supply (VCC) --| RESET GND |-- Pin 6: Ground (GND) --| RST MR |-- Pin 7: Reset Input (Active-low) --| NC CT |-- Pin 8: No Connection (NC) |___________| ```

Functional Features

1. Voltage Monitoring: The MAX706PESA+ continuously monitors the input voltage and compares it with the threshold voltage set by external resistors.
2. Reset Generation: When the input voltage falls below the threshold, the IC generates a reset signal to ensure proper operation of the connected digital circuitry.
3. Adjustable Threshold: The threshold voltage can be easily adjusted by selecting appropriate resistor values, allowing flexibility in different applications.
4. Programmable Timeout: The reset timeout period can be programmed using an external capacitor, enabling customization based on specific system requirements.
5. Active-Low Output: The reset output is active-low, providing compatibility with various microcontrollers and digital devices.

Advantages and Disadvantages

Advantages

• Reliable Voltage Monitoring: Ensures stable operation of digital circuits by monitoring power supply voltage.
• Easy Integration: Compact package and simple pin configuration facilitate easy integration into various electronic designs.
• Low Power Consumption: Operates with low quiescent current, making it suitable for battery-powered applications.
• Customizable Reset Timeout: The reset timeout period can be adjusted to meet specific system needs.

Disadvantages

• Limited Output Options: The IC provides only an active-low push-pull output, which may not be compatible with certain circuit configurations.
• External Components Required: The IC requires external resistors and capacitors for setting threshold voltage and reset timeout, respectively.

Working Principles

The MAX706PESA+ operates based on a voltage comparator circuit. It continuously compares the input voltage with the threshold voltage set by external resistors. When the input voltage falls below the threshold, the IC generates an active-low reset signal. This reset signal ensures that the connected digital circuitry is properly reset and starts functioning correctly when the power supply voltage stabilizes.

Application Field Plans

The MAX706PESA+ finds applications in various electronic devices where voltage monitoring and reset functions are crucial. Some potential application fields include:

1. Microcontrollers: Ensures reliable operation of microcontrollers by providing a reset signal during power supply fluctuations.
2. Embedded Systems: Facilitates proper initialization and reset of embedded systems upon power-up or voltage drops.
3. Industrial Control Systems: Monitors power supply voltage in industrial control systems to prevent malfunctioning due to voltage variations.
4. Automotive Electronics: Provides voltage monitoring and reset functionality in automotive electronics, ensuring stable operation under varying conditions.
5. Battery-Powered Devices: Enables efficient power management and reset control in battery-powered devices, extending battery life.

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