LM5100AMX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LM5100AMX/NOPB is a high-voltage gate driver IC designed for driving both high-side and low-side N-channel MOSFETs in various applications, such as motor control, power supplies, and inverters.

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

Package: The LM5100AMX/NOPB is available in a small outline integrated circuit (SOIC) package.

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

Packaging/Quantity: The LM5100AMX/NOPB is typically sold in reels containing 250 units.

Specifications

• Supply Voltage Range: 9V to 100V
• Output Current Capability: ±2A
• Operating Temperature Range: -40°C to +125°C
• Rise/Fall Time: 15ns (typical)
• Maximum Duty Cycle: 50%
• Undervoltage Lockout Threshold: 7.5V (typical)

Pin Configuration

The LM5100AMX/NOPB has a total of 8 pins arranged as follows:

```

---

| | --| VDD GND |-- Pin 1: Ground (GND) --| IN NC |-- Pin 2: Not Connected (NC) --| HO LO |-- Pin 3: Low-Side Output (LO) --| HIN NC |-- Pin 4: Not Connected (NC) --| LIN NC |-- Pin 5: Not Connected (NC) --| VB VS |-- Pin 6: High-Side Floating Supply Voltage (VS) --| VDD GND |-- Pin 7: Ground (GND) --| HO LO |-- Pin 8: High-Side Output (HO) |___________| ```

Functional Features

• High-side and low-side gate driver outputs
• Integrated bootstrap diode for high-side drive
• Adaptive shoot-through protection
• Under-voltage lockout (UVLO) protection
• Thermal shutdown protection
• Logic-level inputs compatible with standard CMOS or LSTTL outputs

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows for versatile applications - Fast switching speed improves system efficiency - Robust protection features enhance reliability - Compact SOIC package enables space-saving designs

Disadvantages: - Limited output current capability may restrict usage in high-power applications - Not suitable for driving P-channel MOSFETs

Working Principles

The LM5100AMX/NOPB operates by receiving control signals from a microcontroller or other control circuitry. It generates the necessary gate drive voltages to switch the high-side and low-side MOSFETs in a half-bridge configuration. The adaptive shoot-through protection prevents both MOSFETs from conducting simultaneously, minimizing power loss and protecting against potential damage.

Detailed Application Field Plans

The LM5100AMX/NOPB finds applications in various fields, including: 1. Motor control systems for electric vehicles and industrial machinery. 2. Power supplies, such as DC-DC converters and inverters. 3. Solar energy systems for efficient power conversion. 4. Uninterruptible power supplies (UPS) for backup power solutions. 5. Electric vehicle charging stations for efficient energy transfer.

Alternative Models

For alternative options, consider the following models: - LM5113: Dual-channel gate driver with higher output current capability. - LM5109: Single-channel gate driver with similar features and performance. - IRS21844: High-voltage, high-speed gate driver IC suitable for motor control applications.

These alternative models provide flexibility in choosing the most suitable gate driver for specific requirements.

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