MAX690SCSA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX690SCSA+ is a precision, low-power, microprocessor supervisory circuit that monitors the power supply voltage of a microprocessor-based system. It provides reset output during power-up, power-down, and brownout conditions.

Characteristics: - Low-power consumption - Precision monitoring of power supply voltage - Reset output during power-up, power-down, and brownout conditions

Package: Small Outline Integrated Circuit (SOIC)

Essence: The MAX690SCSA+ is an essential component in microprocessor-based systems as it ensures reliable operation by monitoring the power supply voltage and providing reset signals when necessary.

Packaging/Quantity: The MAX690SCSA+ is available in a SOIC package and is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 20µA (typical)
• Reset Active-Low Output Voltage: 0.4V (maximum)
• Power-On Reset Threshold Voltage: 1.2V (typical)

Detailed Pin Configuration

The MAX690SCSA+ has eight pins arranged as follows:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Reset Output (RST) --| GND VCC |-- Pin 3: Supply Voltage (VCC) --| RESET GND |-- Pin 4: Ground (GND) --| CE SOT |-- Pin 5: Chip Enable (CE) --| GND VCC |-- Pin 6: Supply Voltage (VCC) --| VCC GND |-- Pin 7: Ground (GND) |___________| ```

Functional Features

• Precision monitoring of power supply voltage
• Reset output during power-up, power-down, and brownout conditions
• Adjustable reset timeout period for flexibility
• Low quiescent current for power efficiency
• Small form factor for space-constrained applications

Advantages and Disadvantages

Advantages: - Ensures reliable operation of microprocessor-based systems - Provides protection against power supply fluctuations - Adjustable reset timeout period allows customization - Low-power consumption for energy efficiency - Compact package size for easy integration

Disadvantages: - Limited to monitoring power supply voltage only - Requires additional components for complete system protection

Working Principles

The MAX690SCSA+ operates by continuously monitoring the power supply voltage. When the voltage falls below a certain threshold, indicating a power loss or brownout condition, the circuit triggers a reset signal. This reset signal remains active until the power supply voltage stabilizes above the threshold.

Detailed Application Field Plans

The MAX690SCSA+ is commonly used in various microprocessor-based systems where reliable operation is critical. Some application fields include: - Embedded systems - Industrial automation - Automotive electronics - Consumer electronics - Medical devices

Detailed and Complete Alternative Models

1. MAX691SCSA+: Similar to MAX690SCSA+, but with an adjustable reset timeout period of up to 10 seconds.
2. MAX693SCSA+: Offers additional features such as watchdog timer and battery backup switchover.
3. MAX695SCSA+: Includes multiple voltage monitors for monitoring different power supply rails.

These alternative models provide similar functionality with slight variations to cater to specific application requirements.

Word count: 370 words