MAX690CPA+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX690CPA+ belongs to the category of integrated circuits (ICs).

Use

The MAX690CPA+ IC is primarily used for voltage monitoring and supervisory functions in electronic systems.

Characteristics

• Voltage monitoring and reset generation
• Low power consumption
• Wide operating voltage range
• High accuracy
• Small package size

Package

The MAX690CPA+ is available in a 8-pin PDIP (Plastic Dual In-line Package) package.

Essence

The essence of MAX690CPA+ lies in its ability to monitor and control voltage levels, ensuring proper functioning of electronic systems.

Packaging/Quantity

The MAX690CPA+ is typically packaged in reels or tubes, with a quantity of 250 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 Reset
• Reset Threshold Voltage: Adjustable (1.25V to 4.63V)
• Quiescent Current: 20µA (typical)

Pin Configuration

The MAX690CPA+ features the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Active-Low Reset Output (RST) --| TH TO |-- Pin 3: Threshold Input (TH) --| TL CT |-- Pin 4: Threshold Input (TL) --| RESET GND |-- Pin 5: Ground (GND) --| VCC NC |-- Pin 6: No Connection (NC) --| CE GND |-- Pin 7: Ground (GND) --| GND VCC |-- Pin 8: Supply Voltage (VCC) |___________| ```

Functional Features

The MAX690CPA+ offers the following functional features:

1. Voltage Monitoring: The IC continuously monitors the input voltage and generates a reset signal when it falls below a user-defined threshold.
2. Adjustable Threshold: The threshold voltage can be set using external resistors, allowing flexibility in defining the desired voltage level for reset generation.
3. Active-Low Reset Output: The IC provides an active-low reset output signal, which can be used to reset microcontrollers or other digital circuits.
4. Power-On Reset Delay: The MAX690CPA+ includes a power-on reset delay circuitry to ensure stable operation during power-up.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring and reset generation
• Low power consumption
• Wide operating voltage range allows compatibility with various systems
• Small package size enables space-saving designs

Disadvantages

• Limited number of pins may restrict the integration of additional functionalities
• Lack of built-in hysteresis may lead to potential noise-related issues

Working Principles

The MAX690CPA+ operates by comparing the input voltage with the user-defined threshold voltage. When the input voltage drops below the threshold, the IC generates an active-low reset signal. This signal remains active until the input voltage rises above the threshold again.

Detailed Application Field Plans

The MAX690CPA+ finds applications in various fields, including but not limited to: - Microcontroller-based systems - Embedded systems - Power supply monitoring - Battery-powered devices - Industrial automation

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX690CPA+ include: - MAX691CPA+ - MAX809 - ADM708

These models can be considered as alternatives based on specific requirements and system constraints.

In conclusion, the MAX690CPA+ is a versatile integrated circuit that provides accurate voltage monitoring and reset generation capabilities. Its small package size, low power consumption, and wide operating voltage range make it suitable for a range of applications in various fields. However, designers should consider the limited pin count and absence of built-in hysteresis when choosing this IC for their specific projects.