IR21824

Product Overview

Category: Integrated Circuit (IC)

Use: The IR21824 is a high-performance dual channel gate driver IC designed for use in power electronics applications. It provides the necessary drive and protection features required to control and drive power MOSFETs and IGBTs.

Characteristics: - Dual channel gate driver - High voltage capability - Low propagation delay - Built-in protection features - Wide operating temperature range

Package: The IR21824 is available in a compact and industry-standard 8-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package, making it suitable for various circuit board designs.

Essence: The essence of the IR21824 lies in its ability to efficiently drive power MOSFETs and IGBTs, enabling precise control and reliable operation of power electronic systems.

Packaging/Quantity: The IR21824 is typically sold in reels or tubes containing a specified quantity of ICs, depending on the manufacturer's packaging standards.

Specifications

• Supply Voltage Range: 10V to 20V
• Output Current: ±2A
• Input Logic Voltage: 3.3V to 5V
• Operating Temperature Range: -40°C to 125°C
• Maximum Propagation Delay: 200ns

Detailed Pin Configuration

The IR21824 features an 8-pin configuration with the following pin assignments:

1. VCC1: Positive supply voltage for Channel 1
2. IN1: Input logic signal for Channel 1
3. LO1: Low-side output for Channel 1
4. HO1: High-side output for Channel 1
5. COM: Common ground for both channels
6. HO2: High-side output for Channel 2
7. LO2: Low-side output for Channel 2
8. IN2: Input logic signal for Channel 2

Functional Features

• High voltage level shifting
• Undervoltage lockout protection
• Overcurrent protection
• Short circuit protection
• Fault reporting output
• Miller clamp functionality

Advantages and Disadvantages

Advantages: - High-performance dual channel gate driver - Wide operating temperature range allows for versatile applications - Built-in protection features enhance system reliability - Compact package facilitates easy integration into circuit designs

Disadvantages: - Limited output current may restrict use in high-power applications - Higher cost compared to simpler gate driver ICs

Working Principles

The IR21824 operates by receiving input logic signals from a microcontroller or control circuitry, which are then amplified and level-shifted to drive the gates of power MOSFETs or IGBTs. The built-in protection features ensure safe operation by monitoring various parameters such as undervoltage, overcurrent, and short circuits.

Detailed Application Field Plans

The IR21824 is widely used in various power electronics applications, including but not limited to: - Motor drives - Switch-mode power supplies - Inverters - Uninterruptible power supplies (UPS) - Solar inverters - Electric vehicle charging systems

Detailed and Complete Alternative Models

1. IR2184: Single channel gate driver IC with similar specifications and features.
2. IR2110: Dual channel gate driver IC with higher output current capability.
3. IRS2106: Dual channel gate driver IC optimized for high-frequency applications.

These alternative models offer different performance characteristics and can be chosen based on specific application requirements.

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