LM5100BSDX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High voltage gate driver, low-side and high-side driver, wide input voltage range, adjustable dead-time control
• Package: SOIC-8
• Essence: The LM5100BSDX/NOPB is a high-voltage gate driver IC designed for driving both the high-side and low-side N-channel MOSFETs in a half-bridge configuration.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Input Voltage Range: -0.3V to 14V
• Output Voltage Range: -0.3V to 14V
• Supply Voltage Range: 4.5V to 14V
• Operating Temperature Range: -40°C to 125°C
• Switching Frequency: Up to 2MHz
• Output Current: ±2A peak

Pin Configuration

The LM5100BSDX/NOPB has the following pin configuration:

1. VDD: Supply voltage for the IC
2. HO: High-side gate driver output
3. LO: Low-side gate driver output
4. VB: Bootstrap supply voltage for the high-side gate driver
5. VS: High-side floating supply return
6. GND: Ground reference for the IC
7. LIN: Logic input for the low-side gate driver
8. HB: High-side floating supply voltage

Functional Features

• High voltage gate driver for N-channel MOSFETs
• Supports both high-side and low-side switching
• Adjustable dead-time control for optimized switching performance
• Wide input voltage range allows compatibility with various power sources
• Integrated bootstrap diode simplifies the bootstrap supply circuitry

Advantages and Disadvantages

Advantages: - High voltage capability enables driving of power MOSFETs in various applications - Adjustable dead-time control improves efficiency and reduces switching losses - Integrated bootstrap diode simplifies the design and reduces external component count

Disadvantages: - Limited to N-channel MOSFETs, not suitable for P-channel MOSFET applications - Requires careful consideration of high-side gate drive voltage level

Working Principles

The LM5100BSDX/NOPB operates by receiving logic inputs to control the high-side and low-side gate driver outputs. The high-side gate driver utilizes a bootstrap supply voltage generated from the low-side driver to provide the necessary voltage level for driving the high-side N-channel MOSFET. The adjustable dead-time control ensures proper timing between the high-side and low-side switches, preventing shoot-through current.

Detailed Application Field Plans

The LM5100BSDX/NOPB is commonly used in the following applications:

1. Motor drives
2. Power inverters
3. Switch-mode power supplies
4. LED lighting systems
5. Solar inverters

Alternative Models

Other alternative models that can be considered as replacements or substitutes for the LM5100BSDX/NOPB include:

1. LM5113: Dual-channel high-voltage gate driver
2. IRS2186: Half-bridge driver IC
3. FAN7382: High and low-side gate driver
4. UCC27211A: 120V half-bridge gate driver

These alternative models offer similar functionality and can be chosen based on specific application requirements.

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