MAX821TUS+TG077

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: High accuracy, low power consumption
• Package: SOT-23
• Essence: Monitors voltage levels and provides an output signal based on the set threshold
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.5V to 6.0V
• Threshold Voltage Options: 2.93V, 3.08V, 3.15V, 3.30V, 3.42V, 3.63V, 4.00V, 4.38V, 4.63V, 4.75V, 4.88V, 5.00V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Open-Drain
• Quiescent Current: 7µA (typical)

Detailed Pin Configuration

The MAX821TUS+TG077 has a total of three pins:

1. GND: Ground pin
2. OUT: Output pin (active-low open-drain)
3. VCC: Supply voltage input pin

Functional Features

• Monitors the voltage level at the VCC pin
• Provides an active-low output signal when the voltage falls below the set threshold
• Hysteresis ensures stable output even in noisy environments
• Low quiescent current for power-efficient operation
• Wide supply voltage range allows for versatile applications

Advantages and Disadvantages

Advantages

• High accuracy in voltage monitoring
• Low power consumption
• Small package size (SOT-23) for space-constrained designs
• Wide range of threshold voltage options for flexibility

Disadvantages

• Output is active-low open-drain, requiring additional components for certain applications
• Limited operating temperature range (-40°C to +85°C)

Working Principles

The MAX821TUS+TG077 operates by comparing the voltage at the VCC pin with the set threshold voltage. When the VCC voltage falls below the threshold, the output pin (OUT) becomes active-low, indicating a low voltage condition. The hysteresis feature ensures that the output remains stable even in noisy environments.

Detailed Application Field Plans

The MAX821TUS+TG077 finds applications in various fields, including:

1. Battery-powered devices: Monitors battery voltage and triggers actions when it reaches a critical level.
2. Power supply systems: Provides voltage monitoring for power supplies, ensuring stable operation and protection against undervoltage conditions.
3. Industrial equipment: Used in control systems to monitor voltage levels and trigger alarms or shutdowns in case of voltage deviations.
4. Automotive electronics: Voltage monitoring in automotive systems to prevent damage to sensitive components during abnormal voltage conditions.

Detailed and Complete Alternative Models

1. MAX823TUS+TG077: Similar to MAX821TUS+TG077 but with different threshold voltage options.
2. MAX809TUS+TG077: Voltage monitor with a fixed threshold voltage and push-pull output type.
3. MAX638TUS+TG077: Voltage monitor with adjustable threshold voltage and push-pull output type.

(Note: This list is not exhaustive and there may be other alternative models available in the market.)

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