LM5107MAX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Voltage Buck Controller
• Package: 16-Pin TSSOP
• Essence: Efficient and versatile buck controller for power management applications
• Packaging/Quantity: Available in tape and reel packaging, quantity depends on supplier

Specifications

• Input Voltage Range: 4.5V to 100V
• Output Voltage Range: 0.8V to 85V
• Switching Frequency: Up to 1MHz
• Maximum Duty Cycle: 95%
• Operating Temperature Range: -40°C to +125°C
• Features: Adjustable soft-start, cycle-by-cycle current limit, thermal shutdown, etc.

Pin Configuration

The LM5107MAX/NOPB has a 16-pin TSSOP package with the following pin configuration:

1. VCC
2. GND
3. FB
4. COMP
5. SS/TR
6. RT/CT
7. SYNC
8. NC
9. PGND
10. SW
11. SW
12. SW
13. SW
14. SW
15. SW
16. SW

Functional Features

• Wide input voltage range allows for versatile applications
• High switching frequency enables compact designs
• Adjustable soft-start feature prevents excessive inrush current
• Cycle-by-cycle current limit protects against overcurrent conditions
• Thermal shutdown feature ensures safe operation under high temperature

Advantages and Disadvantages

Advantages: - Wide input voltage range provides flexibility in various power management applications - High switching frequency allows for smaller and more efficient designs - Adjustable soft-start feature prevents voltage spikes during startup - Cycle-by-cycle current limit protects the system from overcurrent situations - Thermal shutdown feature ensures safe operation under high temperature conditions

Disadvantages: - Limited output voltage range compared to some other buck controllers - Requires external components for proper operation and protection

Working Principles

The LM5107MAX/NOPB is a high voltage buck controller that regulates the output voltage by controlling the duty cycle of a switching transistor. It operates in a continuous conduction mode (CCM) and uses a voltage feedback loop to maintain the desired output voltage. The controller adjusts the duty cycle based on the feedback signal, comparing it with a reference voltage. This allows for precise regulation of the output voltage.

Detailed Application Field Plans

The LM5107MAX/NOPB is commonly used in various power management applications, including:

1. Industrial Power Supplies: Provides efficient voltage regulation in industrial equipment.
2. Automotive Electronics: Used in automotive power systems for reliable voltage conversion.
3. Renewable Energy Systems: Enables efficient power conversion in solar and wind energy systems.
4. LED Lighting: Controls the voltage and current in LED lighting applications.
5. Telecom Infrastructure: Used in power supplies for telecom equipment.

Detailed and Complete Alternative Models

1. LM5110: High voltage synchronous buck controller with similar features.
2. LM5122: Wide input voltage range buck controller with integrated MOSFETs.
3. LM25011: Low input voltage buck controller with adjustable frequency.

These alternative models offer different specifications and features, allowing users to choose the most suitable option for their specific application requirements.

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