MAX6776LTC+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The MAX6776LTC+ 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 - High accuracy and precision - Multiple power supply inputs - Programmable delay times - Fault detection and reporting

Package: The MAX6776LTC+ is available in a small 16-pin TQFN package, which allows for easy integration into compact electronic devices.

Essence: The essence of the MAX6776LTC+ lies in its ability to monitor and sequence multiple power supply voltages, providing reliable and efficient power management in electronic systems.

Packaging/Quantity: The MAX6776LTC+ is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

The MAX6776LTC+ offers the following specifications:

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Input Voltage Range: 0V to VDD
• Output Voltage Range: 0V to VDD
• Maximum Output Current: 10mA
• Programmable Delay Times: 1ms to 64s
• Fault Detection Threshold: Programmable
• Fault Reporting: Open-drain output

Detailed Pin Configuration

The MAX6776LTC+ features a 16-pin TQFN package with the following pin configuration:

1. VIN1: Input voltage for channel 1
2. VIN2: Input voltage for channel 2
3. VIN3: Input voltage for channel 3
4. VIN4: Input voltage for channel 4
5. VIN5: Input voltage for channel 5
6. GND: Ground reference
7. VDD: Supply voltage input
8. FLT: Fault output
9. EN1: Enable input for channel 1
10. EN2: Enable input for channel 2
11. EN3: Enable input for channel 3
12. EN4: Enable input for channel 4
13. EN5: Enable input for channel 5
14. DELAY: Programmable delay input
15. NC: No connection
16. NC: No connection

Functional Features

The MAX6776LTC+ offers the following functional features:

1. Voltage Monitoring: Monitors the input voltages and compares them to programmable thresholds, providing accurate voltage monitoring.
2. Voltage Sequencing: Controls the enable inputs of multiple power supplies, ensuring proper sequencing to prevent damage or instability.
3. Programmable Delay: Allows users to set delay times between power supply enable signals, enabling precise control over power-up and power-down sequences.
4. Fault Detection: Detects faults such as undervoltage, overvoltage, and power supply sequencing errors, providing fault reporting through the FLT pin.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring and sequencing - Programmable delay times for flexible power management - Compact package for easy integration - Fault detection and reporting for enhanced system reliability

Disadvantages: - Limited maximum output current (10mA) - Requires external components for complete power supply control

Working Principles

The MAX6776LTC+ operates by continuously monitoring the input voltages and comparing them to the programmed thresholds. It controls the enable inputs of the power supplies based on the desired sequencing order and delay times. In case of any fault conditions, such as undervoltage or overvoltage, the MAX6776LTC+ reports the faults through the FLT pin, alerting the system for necessary actions.

Detailed Application Field Plans

The MAX6776LTC+ finds applications in various electronic systems that require precise voltage monitoring and sequencing. Some of the potential application fields include:

1. Server Systems: Ensuring proper power-up and power-down sequences in server racks to prevent data loss and hardware damage.
2. Industrial Automation: Managing multiple power supplies in industrial control systems, ensuring safe and reliable operation.
3. Telecommunications Equipment: Sequencing power supplies in telecom infrastructure to avoid signal disruption and equipment failure.
4. Automotive Electronics: Monitoring and controlling power supply voltages in automotive systems, enhancing overall reliability.

Detailed and Complete Alternative Models

1. MAX6775LTC+: Similar to MAX6776LTC+, but with a different pin configuration.
2. LTC2937-1: Voltage monitor and sequencer IC with additional features such as adjustable thresholds and integrated EEPROM.
3. TPS3890: Precision voltage supervisor with programmable delay and fault detection capabilities.

These alternative models offer similar functionality to