MAX705CSA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, Precision, Reset Output
• Package: 8-SOIC (Small Outline Integrated Circuit)
• Essence: Monitors the power supply voltage and generates a reset signal when the voltage falls below a predetermined threshold.
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage Options: 4.63V, 4.38V, 4.00V, 3.08V, 2.93V, 2.63V, 2.32V, 2.93V
• Reset Timeout Period Options: 140ms, 280ms, 560ms, 1120ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive power supply
5. TH: Threshold voltage selection pin
6. TO: Reset timeout period selection pin
7. NC: No connection
8. RESET: Active-low reset output

Functional Features

• Monitors the power supply voltage and generates a reset signal when it falls below the selected threshold voltage.
• Provides a manual reset input for external system control.
• Offers various options for threshold voltage and reset timeout period to suit different applications.
• Low-power consumption ensures efficient operation in battery-powered devices.
• Precision voltage monitoring ensures accurate reset generation.

Advantages

• Wide supply voltage range allows compatibility with various systems.
• Multiple threshold voltage and reset timeout period options provide flexibility.
• Small package size enables space-saving integration into compact designs.
• Low-power operation extends battery life in portable devices.
• Precision voltage monitoring ensures reliable system reset.

Disadvantages

• Limited number of threshold voltage and reset timeout period options may not cater to all specific requirements.
• Lack of additional features such as hysteresis or adjustable delay limits its versatility in certain applications.

Working Principles

The MAX705CSA+T is a voltage supervisor IC that continuously monitors the power supply voltage. It compares the voltage with the selected threshold level set by the TH pin. When the voltage falls below this threshold, the RESET pin generates an active-low reset signal. The reset signal remains active until the voltage rises above the threshold or a manual reset is applied through the MR pin.

The TO pin allows selection of the reset timeout period, which determines how long the reset signal remains active after the voltage exceeds the threshold. This feature prevents premature system restarts during power fluctuations.

Detailed Application Field Plans

The MAX705CSA+T finds application in various fields where reliable voltage monitoring and system reset functionality are crucial. Some potential areas of use include:

1. Microcontroller Systems: Ensures proper initialization and reliable operation of microcontroller-based systems by providing accurate reset signals.
2. Embedded Systems: Monitors power supply voltage in embedded systems to prevent data corruption and ensure safe system startup.
3. Industrial Control Systems: Protects critical industrial control systems from voltage fluctuations, ensuring uninterrupted operation and preventing damage to equipment.
4. Automotive Electronics: Provides voltage supervision in automotive electronics, enhancing safety and reliability by resetting systems in case of power supply issues.
5. Medical Devices: Ensures reliable operation of medical devices by generating reset signals when power supply voltage falls below acceptable levels.

Detailed and Complete Alternative Models

1. MAX706CSA+T: Similar to MAX705CSA+T but offers different threshold voltage and reset timeout period options.
2. MAX707CSA+T: Voltage supervisor IC with additional features like adjustable reset delay and hysteresis.
3. MAX708CSA+T: Low-power voltage supervisor IC with a wider supply voltage range and extended operating temperature range.

These alternative models provide similar functionality to the MAX705CSA+T but offer different specifications and features, allowing users to choose the most suitable option for their specific requirements.

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