IR2108STRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2108STRPBF 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, switch-mode power supplies, and Class D audio amplifiers.

Characteristics: - High voltage capability - High speed switching - Low propagation delay - Wide operating voltage range - Protection features for fault conditions

Package: The IR2108STRPBF is available in a surface mountable 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the IR2108STRPBF lies in its ability to provide efficient and reliable driving of power switches, enabling optimal performance in various power electronics applications.

Packaging/Quantity: The IR2108STRPBF is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 10V to 20V
• Output Peak Current: 210mA
• Output Voltage Swing: 10V
• Propagation Delay: 120ns
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The IR2108STRPBF has the following pin configuration:

1. VCC: Power supply input
2. VB: Bootstrap supply input for high-side gate driver
3. HO: High-side gate driver output
4. LO: Low-side gate driver output
5. COM: Ground reference
6. SD: Shutdown input
7. VS: Sense voltage input
8. VB: Bootstrap supply input for low-side gate driver

Functional Features

• High voltage level shifting
• Undervoltage lockout protection
• Overcurrent shutdown protection
• Shoot-through protection
• Adjustable dead time for preventing cross-conduction

Advantages and Disadvantages

Advantages: - High voltage capability allows driving of power switches in various applications - High-speed switching enables efficient operation - Protection features enhance system reliability - Adjustable dead time improves overall performance

Disadvantages: - Limited output peak current may restrict use in certain high-power applications - Requires external bootstrap capacitor for proper operation

Working Principles

The IR2108STRPBF 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 power MOSFETs or IGBTs, allowing them to switch on and off rapidly. This switching action controls the flow of current through the power switches, enabling the desired functionality in the target application.

Detailed Application Field Plans

The IR2108STRPBF finds extensive use in the following application fields:

1. Motor Drives: The IC is employed in motor control circuits to drive power switches that control the speed and direction of motors in various industrial and consumer applications.
2. Switch-Mode Power Supplies: It is utilized in switch-mode power supply circuits to efficiently regulate and convert electrical power for electronic devices.
3. Class D Audio Amplifiers: The IC is used in audio amplifier designs to drive power MOSFETs or IGBTs, enabling high-efficiency amplification of audio signals.

Detailed and Complete Alternative Models

1. IR2104: Similar to IR2108STRPBF but with lower output peak current (200mA)
2. IR2110: Higher voltage capability (up to 600V) and higher output peak current (2A)
3. IRS2106: Designed specifically for half-bridge driver applications

These alternative models offer different specifications and features, providing flexibility in choosing the most suitable driver IC for specific requirements.

Word count: 518 words