MAX8213BCPE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: High accuracy, low power consumption
• Package: PDIP (Plastic Dual In-Line Package)
• Essence: Monitors voltage levels and provides a digital output
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 4.63V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Open-Drain
• Quiescent Current: 7µA (typical)

Detailed Pin Configuration

The MAX8213BCPE has a total of 8 pins:

1. VCC: Supply voltage input
2. GND: Ground reference
3. RESET#: Active-low reset output
4. TH: Threshold voltage selection pin
5. MR#: Manual reset input
6. VTH: Threshold voltage monitor output
7. NC: No connection
8. VOUT: Power supply monitor output

Functional Features

• Monitors the power supply voltage and generates a reset signal when it falls below the threshold voltage.
• Provides a manual reset input for immediate system reset.
• Offers multiple threshold voltage options for flexibility in different applications.
• Low quiescent current ensures minimal power consumption.

Advantages and Disadvantages

Advantages

• High accuracy in monitoring power supply voltage.
• Wide supply voltage range allows compatibility with various systems.
• Low power consumption prolongs battery life.
• Flexible threshold voltage options cater to different voltage requirements.

Disadvantages

• Limited number of threshold voltage options available.
• Active-low open-drain output may require additional circuitry for certain applications.

Working Principles

The MAX8213BCPE operates by continuously monitoring the power supply voltage. When the voltage falls below the selected threshold voltage, it generates a reset signal (RESET#) to initiate a system reset. The manual reset input (MR#) allows for an immediate reset regardless of the power supply voltage level.

The threshold voltage (TH) pin determines the desired voltage level at which the reset signal is triggered. Different threshold voltage options are available to accommodate various voltage requirements.

The power supply monitor output (VOUT) provides a digital indication of the power supply voltage status. It is an active-low open-drain output, which requires an external pull-up resistor for proper operation.

Detailed Application Field Plans

The MAX8213BCPE finds applications in various fields where accurate monitoring of power supply voltage is crucial. Some potential application areas include:

1. Battery-powered devices: Ensures safe operation and prevents damage due to low battery voltage.
2. Industrial control systems: Monitors power supply integrity to prevent system failures.
3. Automotive electronics: Protects sensitive components from voltage fluctuations.
4. Medical equipment: Ensures reliable operation by monitoring power supply stability.
5. Telecommunications: Prevents network disruptions caused by voltage irregularities.

Detailed and Complete Alternative Models

1. MAX8212BCSE: Similar to MAX8213BCPE but comes in a smaller SOIC package.
2. MAX8214BCSE: Offers additional features like adjustable threshold voltage and watchdog timer.
3. MAX823LCPA+: Provides higher accuracy and wider operating temperature range.

These alternative models offer similar functionality with slight variations in package type, features, or performance specifications.

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