LM5105SDX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: The LM5105SDX/NOPB is a high-voltage gate driver designed to drive both the high-side and low-side N-channel MOSFETs in a synchronous buck or a half-bridge configuration.
• Characteristics: It features a wide input voltage range, high peak output current, and adaptive dead-time control for efficient power conversion.
• Package: The LM5105SDX/NOPB is available in a thermally-enhanced, 8-pin WSON package.
• Essence: This device is essential for controlling power switches in various applications, including motor drives, solar inverters, and DC-DC converters.
• Packaging/Quantity: The LM5105SDX/NOPB is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4.5V to 75V
• Output Current: ±2.5A
• Operating Temperature Range: -40°C to 125°C
• Driver Type: High-Voltage Gate Driver
• Package Type: 8-Pin WSON

Detailed Pin Configuration

The LM5105SDX/NOPB has the following pin configuration: 1. VDD: Power supply for the high-side gate driver 2. HO: High-side gate driver output 3. HS: High-side gate driver source return 4. VB: Bootstrap supply voltage for the high-side gate driver 5. LGND: Logic ground 6. LIN: Low-side gate driver input 7. LO: Low-side gate driver output 8. GND: Power ground

Functional Features

• High-Side and Low-Side Drive: Capable of driving both high-side and low-side N-channel MOSFETs.
• Wide Input Voltage Range: Supports a wide range of input voltages, making it versatile for different applications.
• Adaptive Dead-Time Control: Ensures efficient power conversion by optimizing dead times.

Advantages and Disadvantages

Advantages: - Versatile application in motor drives, solar inverters, and DC-DC converters. - Wide input voltage range allows for flexibility in design. - Adaptive dead-time control enhances efficiency.

Disadvantages: - Limited to N-channel MOSFETs, which may not be suitable for certain applications using P-channel devices.

Working Principles

The LM5105SDX/NOPB operates by receiving input signals and generating the necessary gate drive voltages to control the high-side and low-side MOSFETs in a synchronous buck or half-bridge configuration. It ensures proper timing and voltage levels to facilitate efficient power conversion.

Detailed Application Field Plans

The LM5105SDX/NOPB is well-suited for various applications, including: - Motor Drives: Provides efficient and precise control over motor drive systems. - Solar Inverters: Enables effective power conversion in solar energy systems. - DC-DC Converters: Facilitates the conversion of DC power from one voltage level to another with high efficiency.

Detailed and Complete Alternative Models

Some alternative models to the LM5105SDX/NOPB include: - LM5110: A similar high-voltage gate driver with adjustable dead time control. - LM5109: Offers dual independent outputs for driving two N-channel MOSFETs.

This comprehensive entry provides an in-depth understanding of the LM5105SDX/NOPB, its specifications, functional features, application fields, and alternative models, making it a valuable resource for engineers and enthusiasts in the field of power electronics.