IR2184: Product Overview and Specifications

Introduction

The IR2184 is a high-performance, two-channel, low-side gate driver IC designed for use in a wide range of applications. This article provides an overview of the IR2184, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: The IR2184 is commonly used as a gate driver for power MOSFETs and IGBTs in applications such as motor drives, inverters, and switch-mode power supplies.
• Characteristics: The IR2184 features high output current, low side over-current shutdown, and matched propagation delay for both channels.
• Package: The IR2184 is available in various package types, including PDIP, SOIC, and DFN.
• Essence: The essence of the IR2184 lies in its ability to efficiently drive power switches while providing protection features and minimizing switching losses.
• Packaging/Quantity: The IR2184 is typically packaged in reels or tubes, with quantities varying based on the manufacturer's specifications.

Specifications

• Supply Voltage: 10V to 20V
• Output Current: 2A peak
• Propagation Delay: 120ns
• Operating Temperature Range: -40°C to 125°C
• Isolation Voltage: 2500Vrms

Detailed Pin Configuration

The IR2184 features a dual-in-line 8-pin (PDIP), 8-lead SOIC, or 8-lead DFN package. The pin configuration is as follows:

1. HO1: High side output 1
2. LO1: Low side output 1
3. VS: Logic ground and power ground
4. VCC: Logic supply voltage
5. IN1: Input 1
6. IN2: Input 2
7. LO2: Low side output 2
8. HO2: High side output 2

Functional Features

• High Output Current: The IR2184 provides high output current capability, enabling it to drive large power switches effectively.
• Low Side Over-Current Shutdown: This feature protects the system from over-current conditions by shutting down the low side output when triggered.
• Matched Propagation Delay: Both channels of the IR2184 have closely matched propagation delays, ensuring balanced operation in bridge configurations.

Advantages and Disadvantages

Advantages

• High output current capability
• Built-in over-current protection
• Matched propagation delay for precise control

Disadvantages

• Limited operating temperature range compared to some competing models
• Higher cost compared to basic gate driver ICs

Working Principles

The IR2184 operates by receiving input signals and generating corresponding output signals to drive the gates of power MOSFETs or IGBTs. It incorporates protection features to ensure safe and reliable operation under various load conditions.

Detailed Application Field Plans

The IR2184 finds extensive use in the following application fields: - Motor Drives: Controlling the speed and direction of motors in industrial and automotive applications. - Inverters: Converting DC power to AC power in renewable energy systems and motor drives. - Switch-Mode Power Supplies: Regulating and converting electrical power in various electronic devices.

Detailed and Complete Alternative Models

• IR21844: A higher voltage version of the IR2184 with extended supply voltage range.
• IRS2184: A similar dual-channel gate driver with additional fault feedback features.

In conclusion, the IR2184 is a versatile and reliable gate driver IC suitable for a wide range of power electronics applications, offering high performance and essential protection features.

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