LM5066PMHX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management and Protection

Characteristics: - High voltage protection - Overcurrent protection - Overvoltage protection - Undervoltage protection - Reverse voltage protection - Fault detection and reporting

Package: HX Package

Essence: The LM5066PMHX/NOPB is a high voltage protection controller designed to safeguard power systems from various faults and anomalies. It provides comprehensive protection features and fault detection capabilities.

Packaging/Quantity: The LM5066PMHX/NOPB is available in a standard HX package. The quantity per package may vary depending on the supplier.

Specifications

• Input Voltage Range: 4V to 80V
• Operating Temperature Range: -40°C to +125°C
• Fault Reporting: Open-drain output
• Fault Detection Thresholds: Programmable
• Current Limit Thresholds: Programmable
• UV/OV Thresholds: Programmable
• Reverse Voltage Protection Threshold: Programmable
• Quiescent Current: 50µA (typical)
• Package Type: HX

Pin Configuration

The LM5066PMHX/NOPB has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. FLT: Fault output
4. EN: Enable control input
5. OV: Overvoltage threshold programming input
6. UV: Undervoltage threshold programming input
7. ILIM: Current limit threshold programming input
8. REV: Reverse voltage threshold programming input
9. PG: Power good output
10. VIN: Power supply input
11. VOUT: Output voltage
12. NC: No connection

Functional Features

1. High Voltage Protection: The LM5066PMHX/NOPB provides protection against overvoltage, undervoltage, and reverse voltage conditions.
2. Overcurrent Protection: It offers programmable current limit thresholds to protect the system from excessive currents.
3. Fault Detection and Reporting: The IC detects faults and reports them through the FLT pin, providing an open-drain output for fault indication.
4. Power Good Output: The PG pin indicates the status of the power supply, ensuring proper power sequencing and system stability.
5. Programmable Thresholds: The LM5066PMHX/NOPB allows users to program various thresholds such as UV, OV, ILIM, and REV to suit specific application requirements.

Advantages and Disadvantages

Advantages: - Comprehensive protection features - Programmable threshold settings - Fault detection and reporting capabilities - Wide input voltage range - Suitable for high voltage applications

Disadvantages: - Limited package options - Requires external components for complete power management solution

Working Principles

The LM5066PMHX/NOPB operates by continuously monitoring the input voltage, output voltage, and current flowing through the system. It compares these values with the programmed thresholds to detect any abnormal conditions. In case of a fault, it triggers the FLT pin, indicating the occurrence of a fault condition. The IC also provides power good indication through the PG pin, ensuring proper power sequencing and system stability.

Detailed Application Field Plans

The LM5066PMHX/NOPB is widely used in various applications where high voltage protection and fault detection are critical. Some of the common application fields include:

1. Industrial Power Systems: It can be employed in industrial power systems to protect sensitive equipment from voltage spikes, reverse voltage, and overcurrent conditions.
2. Automotive Electronics: The IC finds applications in automotive electronics to safeguard electrical systems from voltage fluctuations and faults.
3. Renewable Energy Systems: It is suitable for use in solar power systems and wind turbines to protect the power generation equipment from voltage anomalies and overcurrent situations.
4. Telecommunications: The LM5066PMHX/NOPB can be utilized in telecommunications infrastructure to ensure reliable power supply and protection against voltage surges.

Detailed and Complete Alternative Models

1. TPS26600: A similar high voltage protection controller with integrated MOSFETs for enhanced protection capabilities.
2. LTC4366: An alternative IC offering comprehensive protection features and fault detection for high voltage applications.
3. MAX16050: A programmable voltage supervisor IC with fault detection and reporting capabilities, suitable for various power management applications.

Please note that the above list is not exhaustive, and there are several other alternative models available in the market.

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