MAX810ZEXR+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, microprocessor reset circuit
• Package: SOT-23-3
• Essence: Monitors the power supply voltage of a microprocessor and asserts a reset signal if the voltage falls below a predetermined threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Options: 2.63V, 2.93V, 3.08V, 4.38V
• Reset Timeout Period: 140ms (min)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX810ZEXR+T has three pins:

1. GND: Ground connection.
2. RESET: Output pin that asserts a reset signal when the monitored voltage falls below the threshold.
3. VCC: Power supply input.

Functional Features

• Monitors the power supply voltage continuously.
• Asserts a reset signal when the voltage drops below the specified threshold.
• Provides a stable reset output during power-up and power-down conditions.
• Low quiescent current consumption, suitable for battery-powered applications.
• Built-in glitch immunity ensures reliable operation in noisy environments.

Advantages

• Small package size allows for space-efficient designs.
• Wide supply voltage range enables compatibility with various microprocessors.
• Multiple reset threshold options provide flexibility for different system requirements.
• Low power consumption prolongs battery life in portable devices.
• Glitch immunity ensures reliable operation in challenging environments.

Disadvantages

• Limited to monitoring voltage levels and asserting reset signals, may not suit all system monitoring needs.
• Requires careful consideration of the reset threshold to avoid false triggering or delayed resets.

Working Principles

The MAX810ZEXR+T operates by comparing the supply voltage with a reference voltage internally generated. When the supply voltage drops below the preset threshold, the internal comparator asserts the RESET pin, indicating a low-voltage condition. The reset signal remains active until the supply voltage rises above the threshold and the timeout period elapses.

Detailed Application Field Plans

The MAX810ZEXR+T is commonly used in microprocessor-based systems where reliable power supply monitoring is critical. Some typical applications include:

1. Embedded Systems: Ensuring proper initialization and safe operation of microcontrollers and digital signal processors.
2. Industrial Control Systems: Preventing data corruption and ensuring system integrity during power fluctuations.
3. Automotive Electronics: Monitoring vehicle electronics to prevent malfunctions caused by voltage drops.
4. Medical Devices: Guaranteeing reliable operation and patient safety in medical equipment.

Detailed and Complete Alternative Models

1. MAX809ZEXR+T: Similar to MAX810ZEXR+T but with a different reset timeout period.
2. MAX811ZEXR+T: Voltage supervisor with manual reset input for external control.
3. MAX813ZEXR+T: Dual voltage supervisor with two independent reset outputs.

These alternative models offer similar functionality with slight variations to cater to specific application requirements.

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