MAX8211CPA+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: High accuracy, low power consumption, wide operating voltage range
• Package: 8-pin PDIP (Plastic Dual In-Line Package)
• Essence: Monitors supply voltage and generates a reset signal when the voltage falls below a certain threshold
• Packaging/Quantity: Available in tubes of 25 units

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: 4.63V, 4.38V, 4.00V, 3.08V, 2.93V, 2.63V, 2.32V, 2.06V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)

Pin Configuration

The MAX8211CPA+ has the following pin configuration:

____ VCC | | GND -----| |----- RST | | TH -----| |----- MR | | TR -----| |----- NC | | NC -----|____|-----

• VCC: Positive supply voltage input
• GND: Ground reference
• RST: Active-low reset output
• TH: Threshold voltage selection pin
• MR: Manual reset input
• TR: Reset timeout period selection pin
• NC: No connection (unused pins)

Functional Features

• Monitors the supply voltage and generates a reset signal when it drops below the selected threshold voltage
• Provides a manual reset input for immediate system reset
• Offers a reset timeout period selection pin to adjust the duration of the reset signal
• Low quiescent current ensures minimal power consumption

Advantages and Disadvantages

Advantages: - High accuracy in monitoring supply voltage - Wide operating voltage range allows compatibility with various systems - Low power consumption prolongs battery life - Compact 8-pin PDIP package facilitates easy integration into circuits

Disadvantages: - Limited threshold voltage options may not suit all applications - Reset timeout period cannot be adjusted dynamically

Working Principles

The MAX8211CPA+ operates by comparing the supply voltage with the selected threshold voltage. When the supply voltage falls below the threshold, the reset output is activated, indicating a low-voltage condition. The reset signal remains active for the duration set by the reset timeout period. Additionally, a manual reset input allows the user to initiate an immediate system reset.

Detailed Application Field Plans

The MAX8211CPA+ finds application in various fields where voltage monitoring and system reset functionality are required. Some potential application areas include: 1. Battery-powered devices: Ensures proper functioning by monitoring battery voltage and initiating a reset when it drops below a critical level. 2. Microcontroller-based systems: Protects against voltage fluctuations and provides a reliable reset mechanism to maintain system stability. 3. Industrial automation: Monitors power supply integrity and triggers a reset if voltage anomalies occur, preventing damage to sensitive equipment. 4. Automotive electronics: Safeguards electronic components by monitoring vehicle battery voltage and initiating a reset during voltage dips or spikes.

Detailed and Complete Alternative Models

• MAX8212CPA+: Similar to MAX8211CPA+, but offers different threshold voltage options.
• MAX823CPA+: Voltage monitor and reset circuit with adjustable reset timeout period.
• MAX809/810 Series: Microprocessor supervisory circuits with additional features like watchdog timers and power-on reset.

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