IR2104STR

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2104STR is a high voltage, high-speed power MOSFET and IGBT driver IC. It is specifically designed to drive both the high-side and low-side switches in half-bridge and full-bridge configurations.

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

Package: SOIC-8

Essence: The IR2104STR is an essential component in power electronics applications where efficient and precise control of high-power devices such as MOSFETs and IGBTs is required.

Packaging/Quantity: The IR2104STR is typically sold in reels or tubes containing 2500 units per package.

Specifications

• Supply Voltage Range: 10V to 20V
• Output Current: ±210mA
• Peak Output Current: ±2A
• Propagation Delay: 120ns
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The IR2104STR features an 8-pin Small Outline Integrated Circuit (SOIC) package. The pin configuration is as follows:

1. VCC: Power supply for the high-side gate driver.
2. HO: High-side gate driver output.
3. VS: High-side floating supply return.
4. VB: High-side floating supply input.
5. LGND: Logic ground.
6. LO: Low-side gate driver output.
7. COM: Ground reference for low-side gate driver.
8. VS: Low-side floating supply return.

Functional Features

• Independent high and low-side gate drivers.
• Floating channel design allows easy integration into bootstrap circuits.
• Under-voltage lockout protection for both channels.
• Over-current shutdown protection.
• Shoot-through prevention logic.
• Integrated dead-time control.

Advantages

• High voltage capability enables driving of power devices in various applications.
• High-speed switching allows for efficient and precise control.
• Low power consumption reduces energy losses.
• Compact package size facilitates space-saving designs.
• Robust design ensures reliable operation even in demanding environments.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Propagation delay may affect the timing accuracy in certain applications.
• Operating temperature range may restrict usage in extreme temperature conditions.

Working Principles

The IR2104STR operates by receiving input signals from a microcontroller or other control circuitry. It generates the necessary gate drive signals to control the high-side and low-side switches in a half-bridge or full-bridge configuration. The floating channel design allows the IC to easily integrate into bootstrap circuits, simplifying the overall system design.

Detailed Application Field Plans

The IR2104STR is commonly used in the following application fields:

1. Motor Drives: Controlling the speed and direction of motors in industrial automation, robotics, and electric vehicles.
2. Switching Power Supplies: Driving power MOSFETs or IGBTs in high-frequency switching power supplies for efficient power conversion.
3. Inverters: Enabling the conversion of DC power to AC power in renewable energy systems, such as solar inverters and wind turbine converters.
4. Lighting Systems: Providing precise control of LED drivers and ballasts in lighting applications, including street lighting and architectural lighting.

Detailed and Complete Alternative Models

1. IR2101: Similar to IR2104STR but without the shoot-through prevention logic.
2. IRS2104: Surface-mount version of IR2104STR with improved thermal performance.
3. IR2110: Higher output current version of IR2104STR, suitable for high-power applications.

These alternative models offer similar functionality and can be considered as substitutes for the IR2104STR depending on specific requirements.

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