MAX707EUA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The MAX707EUA+ is a voltage detector and reset circuit IC. It is designed to monitor the power supply voltage of electronic devices and provide a reset signal when the voltage falls below a certain threshold.

Characteristics: - Voltage detection range: 1.6V to 5.5V - Low quiescent current: 7µA (typical) - Adjustable reset timeout period - Active-low push-pull reset output - Small package size: SOT23-8 - RoHS compliant

Package: The MAX707EUA+ is available in an 8-pin small-outline transistor (SOT23-8) package.

Essence: The essence of the MAX707EUA+ is its ability to monitor the power supply voltage and generate a reset signal, ensuring proper operation of electronic devices.

Packaging/Quantity: The MAX707EUA+ is typically sold in reels or tubes containing a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Accuracy: ±1.5%
• Quiescent Current: 7µA (typical), 10µA (maximum)
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Reset Output: Active-low push-pull
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX707EUA+ has the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| RESET OUT |-- Pin 2: Reset Output --| MR |-- Pin 3: Manual Reset Input --| GND VCC |-- Pin 4: Supply Voltage (VCC) |___________| ```

Functional Features

1. Voltage Monitoring: The MAX707EUA+ continuously monitors the supply voltage and compares it to a preset threshold.
2. Reset Generation: When the supply voltage falls below the threshold, the IC generates an active-low reset signal.
3. Adjustable Timeout Period: The reset timeout period can be adjusted using external timing components.
4. Manual Reset Input: The IC provides a manual reset input (MR) for immediate system reset.
5. Low Quiescent Current: The IC consumes very low quiescent current, minimizing power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows compatibility with various electronic devices. - Adjustable reset timeout period offers flexibility in different applications. - Small package size enables space-saving designs. - Low quiescent current ensures minimal power consumption.

Disadvantages: - Lack of built-in hysteresis may result in potential oscillations near the threshold voltage. - Limited number of pins restricts additional functionality without external circuitry.

Working Principles

The MAX707EUA+ operates by comparing the supply voltage (VCC) with a preset threshold voltage. When VCC falls below the threshold, the internal reset circuit is activated, generating an active-low reset output. The reset timeout period determines how long the reset signal remains active after the voltage returns above the threshold.

Application Field Plans

The MAX707EUA+ finds applications in various electronic systems where reliable power supply monitoring and reset generation are crucial. Some potential application fields include: - Microcontrollers and microprocessors - Embedded systems - Industrial automation - Automotive electronics - Consumer electronics

Alternative Models

1. MAX706ESA+: Similar to MAX707EUA+, but available in a 8-pin small-outline integrated circuit (SOIC) package.
2. MAX708ESA+: Voltage detector and reset circuit with fixed reset timeout period, available in an 8-pin SOIC package.
3. MAX809SEUR+: Microprocessor supervisory circuit with adjustable reset timeout period, available in a SOT23-3 package.

These alternative models offer similar functionality and can be considered as substitutes for the MAX707EUA+ depending on specific requirements.

In conclusion, the MAX707EUA+ is a voltage detector and reset circuit IC that provides reliable power supply monitoring and reset generation. With its adjustable timeout period, low quiescent current, and compact package size, it offers flexibility and efficiency in various electronic applications.