LM5067MM-2

Product Overview

Category

The LM5067MM-2 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used for protection and control in power supply systems, offering reliable and efficient performance.

Characteristics

• The LM5067MM-2 features a compact design, making it suitable for space-constrained applications.
• It provides robust protection against overvoltage, undervoltage, and overcurrent conditions.
• The IC offers precise voltage and current monitoring capabilities.
• It supports various power supply topologies, including buck, boost, and flyback converters.

Package

The LM5067MM-2 is available in a small form factor package, known as the MSOP-10. This package ensures ease of integration into different circuit designs.

Essence

The essence of the LM5067MM-2 lies in its ability to safeguard power supply systems by detecting and responding to abnormal operating conditions promptly.

Packaging/Quantity

The LM5067MM-2 is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4V to 80V
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 50µA (typical)
• Fault Response Time: <1µs
• Output Current Limit: Up to 5A

Detailed Pin Configuration

The LM5067MM-2 features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. VCC: Power supply pin
4. FLT: Fault indicator output pin
5. EN: Enable pin
6. PG: Power good indicator output pin
7. OV: Overvoltage threshold setting pin
8. UV: Undervoltage threshold setting pin
9. OC: Overcurrent threshold setting pin
10. FB: Feedback pin for voltage regulation

Functional Features

• Overvoltage Protection: The LM5067MM-2 monitors the input voltage and triggers a fault response if it exceeds the set threshold.
• Undervoltage Protection: It detects low input voltage conditions and initiates appropriate actions to prevent system damage.
• Overcurrent Protection: The IC continuously monitors the output current and responds swiftly to limit it within safe operating limits.
• Fault Indication: The FLT pin provides an output signal indicating the occurrence of a fault condition.
• Power Good Indicator: The PG pin signals when the output voltage is within the desired range, ensuring proper power supply operation.

Advantages and Disadvantages

Advantages

• Compact size enables integration in space-constrained applications.
• Wide input voltage range allows compatibility with various power supply systems.
• Fast fault response time ensures prompt protection against abnormal conditions.
• Precise voltage and current monitoring capabilities enhance system reliability.

Disadvantages

• Limited output current capacity may not be suitable for high-power applications.
• Lack of built-in temperature monitoring functionality.

Working Principles

The LM5067MM-2 operates based on a combination of voltage and current sensing techniques. It continuously monitors the input voltage, output current, and other relevant parameters. By comparing these measurements with the pre-set thresholds, the IC can detect and respond to overvoltage, undervoltage, and overcurrent conditions promptly. Upon detecting a fault, it triggers the FLT pin, providing an indication to the system controller for appropriate action.

Detailed Application Field Plans

The LM5067MM-2 finds extensive application in various power management scenarios, including but not limited to: - Industrial automation systems - Automotive electronics - Telecommunications equipment - Renewable energy systems - Battery charging circuits

Its robust protection features and compact form factor make it suitable for use in these fields, ensuring reliable and efficient power supply operation.

Detailed and Complete Alternative Models

• LM5067MM-1: Similar to LM5067MM-2 but with a different pin configuration.
• LM5066MM: Offers similar protection features but with a higher output current capacity.
• LM5068MM: Provides additional temperature monitoring functionality along with comprehensive protection features.

These alternative models offer flexibility in choosing the most suitable IC based on specific application requirements.

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