MAX690TCSA+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX690TCSA+ belongs to the category of integrated circuits (ICs).

Use

This product is commonly used as a precision, low-power, microprocessor supervisory circuit.

Characteristics

• Precision: MAX690TCSA+ offers accurate monitoring and resetting functions for microprocessors.
• Low Power: It operates on low power, making it suitable for battery-powered applications.
• Microprocessor Supervision: This IC ensures proper functioning of microprocessors by monitoring their power supply voltage.

Package

MAX690TCSA+ is available in a small surface-mount package.

Essence

The essence of MAX690TCSA+ lies in its ability to provide reliable supervision and reset functions for microprocessors.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Watchdog Timeout Period: Adjustable from 1.6ms to 6.4s
• Reset Threshold Voltage: 4.63V (typical)

Detailed Pin Configuration

MAX690TCSA+ features the following pin configuration:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive power supply voltage
5. WDI: Watchdog input
6. GND: Ground connection

Functional Features

• Power-On Reset: MAX690TCSA+ generates a reset signal when the power supply voltage rises above the reset threshold voltage.
• Watchdog Timer: The watchdog input (WDI) monitors the activity of the microprocessor. If no activity is detected within the watchdog timeout period, a reset signal is generated.
• Manual Reset: The manual reset input (MR) allows for an external reset signal to be applied, overriding the internal monitoring functions.

Advantages and Disadvantages

Advantages

• Precision monitoring ensures reliable operation of microprocessors.
• Low power consumption makes it suitable for battery-powered applications.
• Adjustable watchdog timeout period provides flexibility in system design.
• Small package size allows for space-efficient integration.

Disadvantages

• Limited to microprocessor supervision and reset functions.
• Requires additional components for complete system protection.

Working Principles

MAX690TCSA+ operates by continuously monitoring the power supply voltage and the activity of the microprocessor. It compares these inputs with predefined thresholds and generates reset signals accordingly. The adjustable watchdog timer ensures that the microprocessor remains active and responsive. In case of any abnormality, such as a power failure or lack of activity, the IC triggers a reset to ensure proper system operation.

Detailed Application Field Plans

MAX690TCSA+ finds application in various fields, including: 1. Embedded Systems: Provides essential supervision and reset functions for microcontrollers in embedded systems. 2. Industrial Automation: Ensures reliable operation of microprocessors in industrial automation equipment. 3. Medical Devices: Offers precision monitoring and reset capabilities for microprocessors used in medical devices. 4. Automotive Electronics: Enhances the stability and reliability of microprocessor-based automotive electronics systems.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to MAX690TCSA+ include: - MAX691CWE+: Similar features with different pin configuration and package type. - MAX809REUR+: Microprocessor supervisory circuit with additional power-on reset delay feature. - ADM6315-29D2ARTZ-R7: Precision voltage monitor with adjustable reset threshold.

In conclusion, MAX690TCSA+ is a precision microprocessor supervisory circuit that ensures reliable operation of microprocessors. Its low power consumption, adjustable watchdog timer, and small package size make it suitable for various applications in embedded systems, industrial automation, medical devices, and automotive electronics.

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