LM5100MX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Voltage Gate Driver
• Package: SOIC-8
• Essence: The LM5100MX/NOPB is a high voltage gate driver IC designed to drive both the high-side and low-side N-channel MOSFETs in a half-bridge configuration. It provides robust and efficient switching control for power conversion applications.
• Packaging/Quantity: The LM5100MX/NOPB is available in a small outline integrated circuit (SOIC) package with 8 pins.

Specifications

• Input Voltage Range: -0.3V to 7V
• Output Voltage Range: -0.3V to 14V
• Supply Voltage Range: 9V to 100V
• Maximum Output Current: ±2A
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 50ns (typical)

Pin Configuration

The LM5100MX/NOPB has the following pin configuration:

1. VDD: Supply Voltage
2. HO: High-Side Gate Drive Output
3. LO: Low-Side Gate Drive Output
4. VSS: Ground
5. SD: Shutdown Input
6. RT: Dead Time Control Resistor
7. CT: Oscillator Timing Capacitor
8. VIN: Input Voltage

Functional Features

• High Voltage Capability: The LM5100MX/NOPB can handle supply voltages up to 100V, making it suitable for high voltage applications.
• Integrated Bootstrap Diode: The IC includes an integrated bootstrap diode, simplifying the design and reducing external component count.
• Fast Switching Speed: With a propagation delay of only 50ns, the LM5100MX/NOPB enables efficient and rapid switching of MOSFETs.
• Protection Features: The IC incorporates various protection features such as undervoltage lockout (UVLO) and thermal shutdown to ensure safe operation.

Advantages and Disadvantages

Advantages: - High voltage capability - Integrated bootstrap diode - Fast switching speed - Protection features for safe operation

Disadvantages: - Limited output current capacity (±2A)

Working Principles

The LM5100MX/NOPB operates by generating gate drive signals for both the high-side and low-side MOSFETs in a half-bridge configuration. It uses an internal oscillator to control the timing of the gate drive signals. The integrated bootstrap diode allows the high-side gate driver to be powered from the voltage across the low-side MOSFET, eliminating the need for an external power supply.

Detailed Application Field Plans

The LM5100MX/NOPB is commonly used in various power conversion applications, including:

1. Switching Power Supplies
2. Motor Drives
3. Solar Inverters
4. LED Lighting Systems
5. Electric Vehicle Charging Stations

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LM5100MX/NOPB are:

1. IR2104S: High and Low Side Driver IC
2. MAX4426: Dual High-Speed MOSFET Driver
3. UCC27211: 120V Half-Bridge Gate Driver

These alternative models offer similar functionality and can be suitable replacements depending on specific application requirements.

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