IR2125STRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2125STRPBF is a high voltage, high-speed power MOSFET and IGBT driver IC. It is specifically designed for driving MOSFETs and IGBTs in applications such as motor control, switch mode power supplies, and inverters.

Characteristics: - High voltage capability - Fast switching speed - Low power consumption - Protection features against over-current and over-temperature - High noise immunity

Package: The IR2125STRPBF is available in a surface mount 16-pin SOIC (Small Outline Integrated Circuit) package.

Essence: This IC serves as a crucial component in power electronics systems, enabling efficient and reliable control of MOSFETs and IGBTs.

Packaging/Quantity: The IR2125STRPBF is typically sold in reels containing 250 units.

Specifications

• Supply Voltage: 10V to 20V
• Output Current: ±200mA
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay Time: 120ns (typical)
• Rise/Fall Time: 35ns (typical)
• Maximum Duty Cycle: 50%
• UVLO (Under-Voltage Lockout) Threshold: 9.5V (typical)

Pin Configuration

The IR2125STRPBF features a 16-pin SOIC package with the following pin configuration:

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. COM: Common connection for the bootstrap capacitor and low-side gate driver
6. SD: Shutdown input
7. RT: Deadtime control resistor connection
8. CT: Bootstrap capacitor connection
9. VS: High-side floating supply voltage input
10. HO: High-side gate driver output
11. LO: Low-side gate driver output
12. COM: Common connection for the bootstrap capacitor and low-side gate driver
13. SD: Shutdown input
14. RT: Deadtime control resistor connection
15. CT: Bootstrap capacitor connection
16. VS: High-side floating supply voltage input

Functional Features

• High voltage level shifting capability
• Integrated bootstrap diode for high-side gate drive
• Undervoltage lockout protection
• Over-current shutdown protection
• Thermal shutdown protection
• Adjustable deadtime control
• Low-side and high-side outputs can be independently controlled

Advantages and Disadvantages

Advantages: - High voltage capability allows driving of power MOSFETs and IGBTs in various applications - Fast switching speed enables efficient operation of power electronics systems - Low power consumption contributes to energy efficiency - Protection features enhance system reliability - High noise immunity ensures stable operation in noisy environments

Disadvantages: - Limited maximum duty cycle of 50% may restrict certain applications - Requires external components (bootstrap capacitor, deadtime control resistor) for proper operation

Working Principles

The IR2125STRPBF operates by receiving control signals from a microcontroller or other control circuitry. It provides the necessary voltage and current levels to drive the gates of MOSFETs or IGBTs. The high-side and low-side outputs are controlled independently, allowing precise control over the switching behavior of the power devices.

When a control signal is received, the IR2125STRPBF generates the required gate drive voltages using an integrated bootstrap diode and level shifting circuitry. This ensures that the gate-source voltage of the power device reaches the necessary levels for proper switching.

The IC also incorporates protection features such as undervoltage lockout, over-current shutdown, and thermal shutdown. These safeguards help prevent damage to the power devices and the driver IC itself.

Detailed Application Field Plans

The IR2125STRPBF finds applications in various fields, including:

1. Motor Control: It is used in motor drives for controlling the speed and direction of motors in appliances, industrial machinery, and automotive systems.
2. Switch Mode Power Supplies: The IC enables efficient switching of power MOSFETs or IGBTs in switch mode power supplies, improving energy conversion efficiency.
3. Inverters: It is employed in inverter circuits for converting DC power to AC power in applications such as solar inverters, uninterruptible power supplies (UPS), and electric vehicle powertrains.

Detailed and Complete Alternative Models

• IR2104
• IR2110
• IR2184
• IRS2106
• IRS21844

These alternative models offer similar functionality and can be considered as substitutes for the IR2125STRPBF in various applications.

In conclusion, the IR2125STRPBF is a high voltage,