IR21074

Product Overview

Category: Integrated Circuit (IC)

Use: The IR21074 is a high-performance dual channel gate driver IC designed for use in power electronics applications. It is specifically developed to drive IGBTs (Insulated Gate Bipolar Transistors) and MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors).

Characteristics: - Dual channel gate driver - High-performance design - Suitable for driving IGBTs and MOSFETs - Provides reliable and efficient switching control

Package: The IR21074 is available in a compact and industry-standard DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the IR21074 lies in its ability to provide precise and efficient control over the switching characteristics of IGBTs and MOSFETs, ensuring optimal performance in power electronics applications.

Packaging/Quantity: The IR21074 is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Supply Voltage: 10V to 20V
• Output Current: ±2A
• Operating Temperature Range: -40°C to +125°C
• Input Logic Compatibility: CMOS/TTL

Detailed Pin Configuration

The IR21074 features a total of 16 pins, which are assigned specific functions as follows:

1. VCC1: Positive supply voltage for Channel 1
2. VB1: Bootstrap supply voltage for Channel 1
3. HO1: Output for Channel 1
4. LO1: Low-side output for Channel 1
5. VS1: High-side floating supply return for Channel 1
6. COM1: Common connection for Channel 1
7. VSS: Negative supply voltage
8. LIN1: Logic input for Channel 1
9. VCC2: Positive supply voltage for Channel 2
10. VB2: Bootstrap supply voltage for Channel 2
11. HO2: Output for Channel 2
12. LO2: Low-side output for Channel 2
13. VS2: High-side floating supply return for Channel 2
14. COM2: Common connection for Channel 2
15. LIN2: Logic input for Channel 2
16. GND: Ground

Functional Features

• High-speed gate drive capability
• Undervoltage lockout protection
• Overcurrent shutdown protection
• Matched propagation delay for both channels
• Integrated bootstrap diode for simplified circuit design
• Fault status indication through the FLAG pin

Advantages and Disadvantages

Advantages: - Precise and efficient control over IGBTs and MOSFETs - High-speed switching capability - Comprehensive protection features - Simplified circuit design with integrated bootstrap diode

Disadvantages: - Limited output current capacity (±2A) - Restricted operating temperature range (-40°C to +125°C)

Working Principles

The IR21074 operates by receiving logic input signals, which are then amplified and used to control the gate voltage of IGBTs or MOSFETs. This enables precise switching of these power electronic devices, allowing for efficient power conversion and control.

Detailed Application Field Plans

The IR21074 finds extensive application in various power electronics fields, including: - Motor drives - Solar inverters - Uninterruptible Power Supplies (UPS) - Industrial automation systems - Electric vehicle charging systems

Detailed and Complete Alternative Models

1. IR2104: Similar dual channel gate driver IC with slightly different specifications.
2. IR2110: Higher voltage and current rating dual channel gate driver IC.
3. IRS2106: Single channel gate driver IC with similar features.

These alternative models provide flexibility in choosing the most suitable gate driver IC based on specific application requirements.

---

Word count: 439 words