IR2125

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2125 is a high voltage, high-speed power MOSFET and IGBT driver. It is designed to provide efficient and reliable control of power devices in various applications.

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

Package: The IR2125 is available in a compact and industry-standard 8-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The IR2125 is an essential component in power electronics systems, enabling precise control and efficient operation of power MOSFETs and IGBTs.

Packaging/Quantity: The IR2125 is typically sold in reels or tubes containing a quantity of 250 units per package.

Specifications

The IR2125 offers the following specifications:

• Supply Voltage Range: 10V to 20V
• Output Current: ±200mA
• Output Voltage Swing: 10V to 18V
• Propagation Delay Time: 120ns
• Rise/Fall Time: 50ns
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The IR2125 features an 8-pin configuration with the following pin assignments:

1. VCC: Power supply voltage input
2. VB: Bootstrap supply voltage input
3. HO: High-side gate driver output
4. LO: Low-side gate driver output
5. VS: High-side floating supply return
6. COM: Common connection for bootstrap and logic circuits
7. SD: Shutdown input
8. GND: Ground reference

Functional Features

The IR2125 offers the following functional features:

• High voltage level shifting
• Undervoltage lockout protection
• Integrated bootstrap diode
• Short-circuit protection
• Shutdown input for system control
• High noise immunity

Advantages and Disadvantages

Advantages: - High voltage capability enables use in a wide range of applications - Fast switching speed allows for efficient power device control - Low power consumption reduces energy losses - Compact package size facilitates integration into various systems - Robust design ensures reliable operation even in harsh environments

Disadvantages: - Limited output current may restrict usage in high-power applications - Propagation delay time may affect timing-sensitive operations

Working Principles

The IR2125 operates by receiving control signals from a microcontroller or other logic circuitry. It provides the necessary voltage and current levels to drive power MOSFETs or IGBTs, enabling precise switching and control of these devices. The integrated bootstrap diode simplifies the circuit design by eliminating the need for an external diode.

Detailed Application Field Plans

The IR2125 finds applications in various fields, including:

1. Motor Control Systems: Enables efficient control of motor speed and direction in industrial and automotive applications.
2. Power Supplies: Facilitates precise regulation and control of power supply circuits.
3. Inverters: Enables efficient conversion of DC power to AC power in renewable energy systems and motor drives.
4. Lighting Systems: Provides accurate control of LED drivers and ballasts for optimal lighting performance.
5. Switching Power Amplifiers: Enhances the efficiency and performance of audio amplifiers.

Detailed and Complete Alternative Models

1. IR2101: Similar functionality with lower voltage capability.
2. IR2184: Higher output current capability with additional features.
3. IRS2110: Enhanced noise immunity and higher voltage capability.

These alternative models offer similar functionalities to the IR2125 but may have different specifications and pin configurations.

In conclusion, the IR2125 is a high voltage, high-speed power MOSFET and IGBT driver that provides efficient and reliable control of power devices. Its compact package, robust design, and various functional features make it suitable for a wide range of applications in motor control systems, power supplies, inverters, lighting systems, and switching power amplifiers. Alternative models such as the IR2101, IR2184, and IRS2110 offer similar functionalities with slight variations in specifications and pin configurations.