LM5101ASDX

Product Overview

Category: Integrated Circuit (IC)

Use: The LM5101ASDX is a high-voltage gate driver IC designed for driving both high-side and low-side N-channel MOSFETs in various power applications.

Characteristics: - High voltage capability - Fast switching speed - Low propagation delay - Wide operating temperature range - Robust protection features

Package: The LM5101ASDX is available in a small outline package (SOIC) with 8 pins.

Essence: This IC serves as a crucial component in power electronics systems, enabling efficient and reliable switching of MOSFETs.

Packaging/Quantity: The LM5101ASDX is typically sold in reels containing 2500 units.

Specifications

• Supply Voltage Range: 9V to 100V
• Output Current Capability: ±2A
• Maximum Switching Frequency: 2 MHz
• Operating Temperature Range: -40°C to +125°C
• Input Logic Compatibility: CMOS, TTL

Pin Configuration

The LM5101ASDX has the following pin configuration:

1. VDD: Power supply input
2. HO: High-side gate driver output
3. LO: Low-side gate driver output
4. VB: Bootstrap supply input
5. LGND: Low-side gate driver ground
6. HB: High-side floating bootstrap supply input
7. HS: High-side floating supply return
8. GND: Ground reference

Functional Features

• High voltage level shifting
• Adaptive shoot-through protection
• Integrated bootstrap diode
• Under-voltage lockout (UVLO) protection
• Thermal shutdown protection
• Adjustable dead-time control

Advantages and Disadvantages

Advantages: - Enables efficient and reliable switching of high-side and low-side MOSFETs - Wide operating voltage range allows for versatile applications - Fast switching speed reduces power losses - Robust protection features enhance system reliability

Disadvantages: - Limited output current capability compared to specialized gate driver ICs - Requires external components for proper operation

Working Principles

The LM5101ASDX operates by receiving input signals from a controller and generating high-voltage gate drive signals for the high-side and low-side MOSFETs. It utilizes level shifting techniques to ensure proper gate drive voltages are applied, enabling efficient switching of the MOSFETs. The integrated bootstrap diode simplifies the design by providing the necessary voltage supply for the high-side gate driver.

Detailed Application Field Plans

The LM5101ASDX is commonly used in various power electronics applications, including: - Switch-mode power supplies (SMPS) - Motor drives - Solar inverters - LED lighting systems - Uninterruptible power supplies (UPS)

Detailed and Complete Alternative Models

Some alternative models to the LM5101ASDX include: - LM5113: Dual-channel gate driver with higher output current capability - IRS2110: High-voltage, high-speed gate driver IC - MAX4426: Low-side gate driver with adjustable dead-time control

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

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