MAX805RCPA+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX805RCPA+ belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for voltage monitoring and reset functions in electronic devices.

Characteristics

• Voltage monitoring: The MAX805RCPA+ provides accurate monitoring of supply voltages.
• Reset function: It generates a reset signal when the monitored voltage falls below a specified threshold.
• Low power consumption: This IC operates with low power requirements, making it suitable for battery-powered devices.
• Wide operating voltage range: It can operate within a wide range of supply voltages, enhancing its versatility.
• Small package size: The MAX805RCPA+ is available in a compact package, enabling space-efficient designs.
• RoHS compliant: This product adheres to the Restriction of Hazardous Substances directive.

Package and Quantity

The MAX805RCPA+ is packaged in a small outline integrated circuit (SOIC) package. It is typically sold in reels containing a specific quantity, such as 2500 units per reel.

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V, 4.63V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 7µA (typical)
• Reset Timeout Period: 140ms (typical)

Pin Configuration

The MAX805RCPA+ has the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1 --| MR RST |-- Pin 2 --| RESET GND |-- Pin 3 --| GND VCC |-- Pin 4 |___________| ```

Functional Features

1. Voltage Monitoring: The MAX805RCPA+ continuously monitors the supply voltage.
2. Reset Signal Generation: When the monitored voltage falls below the specified threshold, it generates a reset signal.
3. Active-Low Reset Output: The reset output is active-low, indicating a system reset when pulled low.
4. Manual Reset Input: The MR pin allows for manual reset control by pulling it low.
5. Power-On Reset Delay: It provides a power-on reset delay to ensure stable operation during power-up.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures reliable system operation.
• Low power consumption prolongs battery life in portable devices.
• Wide operating voltage range enhances compatibility with various power sources.
• Small package size enables compact designs.
• RoHS compliance promotes environmental friendliness.

Disadvantages

• Limited threshold voltage options may not cater to all specific requirements.
• Lack of advanced features compared to more specialized ICs.

Working Principles

The MAX805RCPA+ operates based on a voltage comparator circuit. It compares the supply voltage against the preset threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, signaling a system reset. The reset remains active until the supply voltage rises above the threshold again.

Detailed Application Field Plans

The MAX805RCPA+ finds applications in various electronic systems that require voltage monitoring and reset functionality. Some potential application fields include:

1. Microcontrollers: Ensuring proper system initialization and preventing erratic behavior during power fluctuations.
2. Embedded Systems: Providing reliable reset signals to maintain system integrity.
3. Industrial Control Systems: Monitoring power supply voltages to prevent damage or data corruption.
4. Automotive Electronics: Resetting microcontrollers and other critical components during voltage dips or transients.
5. Consumer Electronics: Safeguarding sensitive circuits from voltage variations, ensuring stable operation.

Detailed and Complete Alternative Models

1. MAX803RCPA+: Similar to the MAX805RCPA+, but with a push-pull reset output instead of an open-drain configuration.
2. MAX809RCPA+: Provides a manual reset input and adjustable reset timeout period.
3. MAX811RCPA+: Offers additional features like power-on reset delay and watchdog timer functionality.

These alternative models offer similar voltage monitoring and reset capabilities, catering to different application requirements.

Word count: 520 words