MAX708SCSA+TG035

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitor with watchdog timer
• Package: SOIC-8
• Essence: Provides a reliable reset signal to microcontrollers and other digital systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Threshold Voltage Options: 2.63V, 3.08V, 4.38V, or adjustable
• Watchdog Timeout Period: 1.6s, 3.2s, 6.3s, or adjustable
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 7µA (typical)

Pin Configuration

The MAX708SCSA+TG035 IC has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | GND | Ground | | 2 | RESET | Reset Output| | 3 | MR | Manual Reset Input | | 4 | VCC | Supply Voltage | | 5 | WDI | Watchdog Timer Input | | 6 | GND | Ground | | 7 | GND | Ground | | 8 | VCC | Supply Voltage |

Functional Features

• Monitors the supply voltage and asserts the reset output when it falls below the threshold voltage.
• Provides a watchdog timer input for system monitoring.
• Offers manual reset capability through the MR pin.
• Low quiescent current makes it suitable for battery-powered applications.
• Adjustable threshold voltage and watchdog timeout period provide flexibility.

Advantages and Disadvantages

Advantages: - Reliable voltage monitoring for microcontrollers and digital systems. - Low-power operation extends battery life. - Adjustable parameters offer customization options.

Disadvantages: - Limited to a maximum supply voltage of 5.5V. - Not suitable for high-voltage applications.

Working Principles

The MAX708SCSA+TG035 operates by continuously monitoring the supply voltage. When the voltage falls below the threshold voltage, the reset output is asserted, indicating a power failure or unstable voltage condition. The watchdog timer input allows the system to periodically reset the MAX708SCSA+TG035 to prevent it from locking up. The manual reset input provides an additional means to assert the reset output. The low quiescent current ensures minimal power consumption when the device is in standby mode.

Detailed Application Field Plans

The MAX708SCSA+TG035 is commonly used in various applications, including:

1. Microcontroller-based systems: Provides reliable reset signals to ensure proper initialization and operation of microcontrollers.
2. Embedded systems: Monitors the supply voltage to prevent erratic behavior or data corruption in embedded systems.
3. Battery-powered devices: Maximizes battery life by efficiently monitoring the voltage and resetting the system when necessary.
4. Industrial control systems: Ensures stable operation of control systems by detecting power failures or voltage fluctuations.
5. Automotive electronics: Protects sensitive electronic components from voltage variations and ensures proper functioning of automotive systems.

Detailed and Complete Alternative Models

1. MAX705CSA+: Similar to MAX708SCSA+TG035 but without the adjustable threshold voltage option.
2. MAX809SEUR-T: Voltage monitor with a fixed threshold voltage of 2.93V and push-pull reset output.
3. MAX811TEUS-T: Voltage monitor with adjustable threshold voltage and push-pull reset output.
4. MAX703ESA+: Voltage monitor with a fixed threshold voltage of 4.63V and open-drain reset output.

These alternative models offer similar functionality to the MAX708SCSA+TG035 but may have different specifications or package options.

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