IR2112-2

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2112-2 is a high voltage, high-speed power MOSFET and IGBT driver IC. It is specifically designed to drive power switches in applications such as motor drives, inverters, and other high-power switching systems.

Characteristics: - High voltage capability - Fast switching speed - Low power consumption - Compact package size - Robust design for reliable operation

Package: The IR2112-2 is available in a compact and industry-standard 8-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the IR2112-2 lies in its ability to provide efficient and reliable driving of power MOSFETs and IGBTs, enabling precise control of high-power switching systems.

Packaging/Quantity: The IR2112-2 is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Supply Voltage: 10V - 20V
• Output Current: ±2A
• Operating Temperature Range: -40°C to +125°C
• Maximum Power Dissipation: 1.5W
• Propagation Delay Time: 150ns
• Rise/Fall Time: 50ns
• Input Logic Levels: CMOS/TTL compatible

Pin Configuration

The IR2112-2 features the following pin configuration:

1. VCC: Supply voltage input
2. VB: High-side floating supply voltage input
3. HO: High-side gate driver output
4. LO: Low-side gate driver output
5. COM: Common connection for both high-side and low-side drivers
6. SD: Shutdown input (active low)
7. VS: High-side floating supply voltage return
8. GND: Ground reference

Functional Features

• High voltage level shifting
• Undervoltage lockout protection
• Overcurrent shutdown protection
• Short circuit protection
• Bootstrap operation for high-side gate driver
• Integrated deadtime control
• Fault status indication

Advantages and Disadvantages

Advantages: - High voltage capability allows driving of power MOSFETs and IGBTs in high-power applications - Fast switching speed enables efficient power conversion - Low power consumption reduces energy losses - Compact package size facilitates space-saving designs - Robust design ensures reliable operation even in harsh environments

Disadvantages: - Limited output current may not be suitable for extremely high-power applications - Propagation delay time and rise/fall time may impact the overall system response time in certain applications

Working Principles

The IR2112-2 operates by receiving input signals from a microcontroller or control circuitry, which are then amplified and level-shifted to drive the gates of power MOSFETs or IGBTs. The high-side and low-side drivers provide complementary signals to ensure proper switching of the power switches. The integrated deadtime control prevents shoot-through currents during switching transitions, enhancing system efficiency and reliability.

Detailed Application Field Plans

The IR2112-2 is widely used in various applications, including: 1. Motor drives 2. Inverters 3. Switch-mode power supplies 4. Uninterruptible Power Supplies (UPS) 5. Industrial automation systems 6. Renewable energy systems

Alternative Models

For those seeking alternative options, the following ICs can be considered: 1. IR2104 2. IR2184 3. IRS2110 4. IRS21844

These models offer similar functionalities and can be suitable replacements based on specific application requirements.

In conclusion, the IR2112-2 is a high voltage, high-speed power MOSFET and IGBT driver IC that provides efficient and reliable control of power switches in various high-power switching systems. Its compact size, robust design, and advanced features make it a popular choice in motor drives, inverters, and other industrial applications.

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