MAX708ESA+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Reset Output
• Package: 8-SOIC (Small Outline Integrated Circuit)
• Essence: MAX708ESA+ is a voltage supervisor IC that monitors the power supply voltage of a system and provides a reset signal when the voltage falls below a predetermined threshold.
• Packaging/Quantity: The MAX708ESA+ is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Threshold Voltage Options: 4.63V, 4.38V, 4.00V, 2.93V, 2.63V, 2.32V, 2.00V, 1.67V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX708ESA+ has an 8-pin Small Outline Integrated Circuit (SOIC) package. The pin configuration is as follows:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | GND | Ground | | 2 | RESET | Reset Output| | 3 | MR | Manual Reset Input | | 4 | VCC | Supply Voltage | | 5 | TH | Threshold Voltage Selection | | 6 | CT | Capacitor Connection | | 7 | RESET | Reset Output | | 8 | NC | No Connect |

Functional Features

• Monitors the power supply voltage and asserts a reset signal when the voltage falls below the threshold.
• Provides a manual reset input for immediate system reset.
• Adjustable reset timeout period allows customization based on application requirements.
• Low power consumption ensures minimal impact on overall system power budget.
• Precision monitoring ensures accurate detection of voltage variations.

Advantages

• Compact 8-pin SOIC package offers space-saving integration into various electronic systems.
• Wide supply voltage range enables compatibility with different power supply configurations.
• Adjustable threshold voltage options provide flexibility in voltage monitoring applications.
• Low power consumption extends battery life in portable devices.
• Precision monitoring ensures reliable system operation.

Disadvantages

• Limited number of threshold voltage options may not cater to all specific voltage monitoring requirements.
• Manual reset input may require additional external components for proper functionality in certain applications.
• Reset timeout period adjustment range may not cover all desired timing intervals.

Working Principles

The MAX708ESA+ operates by continuously monitoring the power supply voltage using an internal voltage reference. When the voltage falls below the threshold set by the TH pin, the RESET output is asserted, indicating a low-voltage condition. The reset signal remains active until the voltage rises above the threshold or a manual reset is applied to the MR pin.

Application Field Plans

The MAX708ESA+ finds extensive use in various applications where voltage monitoring and system reset functionality are critical. Some potential application fields include: 1. Battery-powered devices: Ensures safe operation by monitoring battery voltage and initiating a reset if the voltage drops below a safe level. 2. Microcontroller-based systems: Protects against voltage fluctuations that can cause system instability or data corruption. 3. Industrial control systems: Monitors power supply integrity to prevent damage to sensitive equipment during voltage dips or surges. 4. Automotive electronics: Provides reliable voltage monitoring for automotive systems, ensuring proper functioning and preventing damage due to voltage variations.

Alternative Models

1. MAX706ESA+: Similar to MAX708ESA+ with additional features like watchdog timer and active-low reset output.
2. MAX809: Voltage supervisor IC with fixed threshold voltage options and push-pull or open-drain reset outputs.
3. ADM708: Precision voltage monitor with adjustable threshold voltage and manual reset input.

Note: The above alternative models are provided as examples and may not cover all available options in the market.

In conclusion, the MAX708ESA+ is a versatile voltage supervisor IC that offers precision monitoring and reset functionality. Its compact package, wide supply voltage range, and adjustable timeout period make it suitable for various applications. However, it has some limitations in terms of threshold voltage options and reset timing adjustment range. Nonetheless, its working principles and application field plans demonstrate its usefulness in ensuring reliable system operation.