MAX6773TASD3+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX6773TASD3+ is a voltage monitor and sequencer IC designed for use in various electronic systems. It provides precise monitoring and control of multiple power supply voltages, ensuring proper sequencing and protection.

Characteristics: - Voltage monitoring and sequencing - Programmable thresholds and delays - Fault detection and reporting - Low power consumption - Small form factor

Package: The MAX6773TASD3+ is available in a small 8-pin TDFN package, making it suitable for space-constrained applications.

Essence: The essence of the MAX6773TASD3+ lies in its ability to accurately monitor and sequence multiple power supply voltages, ensuring reliable operation of electronic systems.

Packaging/Quantity: The MAX6773TASD3+ is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Output Current: 10mA
• Threshold Accuracy: ±1.5%
• Delay Accuracy: ±1.5%
• Quiescent Current: 20µA (typical)
• Fault Detection Time: 100µs (typical)

Detailed Pin Configuration

The MAX6773TASD3+ features the following pin configuration:

1. GND: Ground reference for the IC.
2. VCC: Positive supply voltage input.
3. IN1: Input for monitoring voltage 1.
4. IN2: Input for monitoring voltage 2.
5. OUT1: Output indicating the status of voltage 1.
6. OUT2: Output indicating the status of voltage 2.
7. EN: Enable pin for controlling the IC's operation.
8. GPO: General-purpose output pin.

Functional Features

The MAX6773TASD3+ offers the following functional features:

1. Voltage Monitoring: The IC continuously monitors the input voltages and compares them to programmable thresholds. It provides accurate voltage monitoring with a high threshold accuracy of ±1.5%.

2. Voltage Sequencing: The IC ensures proper sequencing of multiple power supply voltages by allowing programmable delays between each voltage turn-on and turn-off event. This prevents potential damage to sensitive components due to improper voltage levels during power-up or power-down.

3. Fault Detection and Reporting: The IC detects various fault conditions, such as undervoltage, overvoltage, and power supply glitches. It reports these faults through the dedicated output pins, enabling timely system response and protection.

4. Low Power Consumption: With a quiescent current of only 20µA, the MAX6773TASD3+ minimizes power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring and sequencing capabilities - Programmable thresholds and delays for customization - Fault detection and reporting for enhanced system protection - Low power consumption for energy-efficient operation - Compact package size for space-constrained applications

Disadvantages: - Limited number of monitored voltages (up to 2) - Requires external components for complete functionality

Working Principles

The MAX6773TASD3+ operates based on a combination of voltage comparators, timers, and control logic. It continuously monitors the input voltages and compares them to the programmed thresholds. If any voltage falls outside the specified range, the IC triggers the corresponding fault output and initiates the appropriate response.

The IC also controls the sequencing of multiple voltages by enabling or disabling the power supplies based on the programmed delays. This ensures that each voltage turns on or off in a specific order, preventing potential damage to sensitive components.

Detailed Application Field Plans

The MAX6773TASD3+ finds applications in various electronic systems where precise voltage monitoring and sequencing are critical. Some potential application fields include:

1. Industrial Control Systems: The IC can be used to monitor and sequence power supplies in industrial control systems, ensuring proper operation and protection of critical equipment.

2. Telecommunications Equipment: It can be employed in telecommunications equipment to monitor and sequence power supplies for reliable communication and network functionality.

3. Medical Devices: The IC's voltage monitoring and sequencing capabilities make it suitable for medical devices, where accurate power supply control is essential for patient safety.

4. Automotive Electronics: It can be utilized in automotive electronics to monitor and sequence power supplies, preventing potential damage to sensitive components during vehicle operation.

Detailed and Complete Alternative Models

• MAX6774TASD3+: Similar to MAX6773TASD3+, but with additional voltage monitoring inputs and outputs.