LM5101BSD/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LM5101BSD/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 LM5101BSD/NOPB is available in a small outline package (SOP) 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 LM5101BSD/NOPB is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 9V to 100V
• Output Current Capability: ±2A
• Operating Temperature Range: -40°C to +125°C
• Rise/Fall Time: 10ns (typical)
• Maximum Duty Cycle: 50%
• Undervoltage Lockout (UVLO) Threshold: 7.5V (typical)

Pin Configuration

The LM5101BSD/NOPB features the following pin configuration:

1. VDD: Power supply input
2. HO: High-side gate driver output
3. LO: Low-side gate driver output
4. VSS: Ground reference
5. SD: Shutdown input
6. RT: External resistor connected to set dead time
7. CT: External capacitor connected to set soft-start time
8. VB: Bootstrap supply input for high-side gate driver

Functional Features

• High-side and low-side gate drivers
• Adaptive shoot-through protection
• UVLO protection
• Integrated bootstrap diode
• Adjustable dead time
• Soft-start function

Advantages and Disadvantages

Advantages: - High voltage capability allows for use in a wide range of applications - Fast switching speed enables efficient power conversion - Robust protection features enhance system reliability - Adjustable dead time and soft-start function provide flexibility in circuit design

Disadvantages: - Limited maximum duty cycle of 50% may restrict certain applications requiring higher duty cycles - External components (resistor and capacitor) are required to set dead time and soft-start time, adding complexity to the circuit design

Working Principles

The LM5101BSD/NOPB operates by receiving control signals from a microcontroller or other control circuitry. It generates high and low-side gate drive signals to switch the MOSFETs on and off. The adaptive shoot-through protection prevents both MOSFETs from conducting simultaneously, ensuring safe operation. The UVLO protection disables the gate driver when the supply voltage falls below a certain threshold, preventing improper operation.

Detailed Application Field Plans

The LM5101BSD/NOPB finds application in various fields, including: 1. Motor control systems 2. Power supplies 3. Inverters 4. Uninterruptible power supplies (UPS) 5. Solar inverters 6. Electric vehicle charging stations

Alternative Models

Other alternative models that can be considered as substitutes for the LM5101BSD/NOPB include: 1. IR2104 2. IRS21844 3. MAX15062 4. FAN7382 5. UCC27211

These models offer similar functionalities and can be used depending on specific requirements and availability.

In conclusion, the LM5101BSD/NOPB is a versatile high-voltage gate driver IC with fast switching speed, robust protection features, and adjustable parameters. It finds application in various fields such as motor control, power supplies, and inverters. Alternative models are available for consideration based on specific needs.