IR2108PBF

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2108PBF is a high voltage, high-speed power MOSFET and IGBT driver. It is specifically designed to drive power switches in applications such as motor control, switch-mode power supplies, and uninterruptible power supplies.

Characteristics: - High voltage capability - High speed switching - Low power consumption - Wide operating temperature range - Compact package size

Package: The IR2108PBF is available in a compact 8-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the IR2108PBF lies in its ability to provide efficient and reliable driving of power switches, ensuring optimal performance in various power electronic applications.

Packaging/Quantity: The IR2108PBF is typically sold in reels or tubes containing a specified quantity of ICs, depending on the manufacturer's packaging standards.

Specifications

The key specifications of the IR2108PBF are as follows:

• Supply Voltage: 10V to 20V
• Output Current: ±200mA
• Peak Output Current: ±400mA
• Operating Temperature Range: -40°C to 125°C
• Propagation Delay Time: 120ns
• Rise/Fall Time: 35ns
• Maximum Duty Cycle: 50%
• Input Logic Threshold: 2.5V

Pin Configuration

The IR2108PBF features an 8-pin 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. VS: High-side floating supply return
6. COM: Common connection for low-side and high-side drivers
7. SD: Shutdown input (active low)
8. IN: Logic input

Functional Features

The IR2108PBF offers the following functional features:

• High voltage level shifting
• Undervoltage lockout protection
• Shoot-through prevention logic
• Integrated bootstrap diode
• Short-circuit protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages: - Efficient power switch driving - Fast switching speed - Wide operating temperature range - Compact package size - Integrated protection features

Disadvantages: - Limited output current capability - Requires external bootstrap capacitor

Working Principles

The IR2108PBF operates by receiving a logic input signal, which is then amplified and level-shifted to drive the gate of the power MOSFET or IGBT. The integrated bootstrap diode provides the necessary voltage for the high-side driver. The device also incorporates various protection mechanisms to ensure safe operation under different conditions.

Application Field Plans

The IR2108PBF finds extensive use in the following application fields:

1. Motor control systems
2. Switch-mode power supplies
3. Uninterruptible power supplies (UPS)
4. Inverter circuits
5. Solar power systems
6. Electric vehicle charging stations

Alternative Models

For users seeking alternative options, the following models can be considered:

1. IR2110PBF
2. IRS2108PBF
3. IR2184PBF
4. IRS21844PBF
5. IR2153PBF

These models offer similar functionality and can be suitable replacements depending on specific requirements.

In conclusion, the IR2108PBF is a high-performance IC designed for efficient and reliable driving of power switches in various power electronic applications. With its compact package size, wide operating temperature range, and integrated protection features, it offers significant advantages in terms of performance and reliability.