IR2104

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2104 is a high voltage, high-speed power MOSFET and IGBT driver IC. It is specifically designed to drive MOSFETs and IGBTs in applications such as motor drives, switch-mode power supplies, and Class D audio amplifiers.

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

Package: The IR2104 is available in a compact 8-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the IR2104 lies in its ability to provide efficient and reliable driving of power MOSFETs and IGBTs, enabling high-performance control of various power electronic systems.

Packaging/Quantity: The IR2104 is typically sold in reels or tubes containing a quantity of 250 or 1000 units per package.

Specifications

• Supply Voltage: 10V to 20V
• Output Current: ±210mA
• Output Voltage: up to 600V
• Operating Temperature Range: -40°C to 125°C
• Propagation Delay Time: 120ns (typical)
• Rise/Fall Time: 35ns (typical)

Pin Configuration

The IR2104 features 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: Common ground for gate drivers
6. SD: Shutdown input (active low)
7. VS: High-side floating supply return
8. VB: Bootstrap supply input for high-side gate driver

Functional Features

• High voltage level shifting
• Undervoltage lockout protection
• Overcurrent protection
• Shoot-through prevention logic
• Integrated bootstrap diode for high-side driver
• Shutdown input for disabling the outputs

Advantages and Disadvantages

Advantages: - High voltage capability allows driving of power MOSFETs and IGBTs in various applications - High-speed switching enables efficient operation of power electronic systems - Low power consumption contributes to energy efficiency - Compact package size facilitates space-saving designs

Disadvantages: - Limited output current may restrict usage in certain high-power applications - Requires external components for proper operation, such as bootstrap capacitors and resistors

Working Principles

The IR2104 operates by receiving control signals from a microcontroller or other control circuitry. It generates the necessary gate drive voltages to switch the power MOSFETs or IGBTs on and off. The high voltage level shifting capability ensures proper drive voltage levels for the power devices, while the integrated bootstrap diode simplifies the design by eliminating the need for an external diode.

Detailed Application Field Plans

The IR2104 finds application in various fields, including:

1. Motor Drives: Enables precise control of motor speed and direction in industrial automation, robotics, and electric vehicles.
2. Switch-Mode Power Supplies: Facilitates efficient conversion of electrical power in applications such as computer power supplies, LED lighting, and telecommunications equipment.
3. Class D Audio Amplifiers: Provides high-fidelity audio amplification with low power dissipation, suitable for portable audio devices and automotive audio systems.

Alternative Models

For those seeking alternative options, the following ICs can be considered:

1. IR2110: Similar to IR2104 but with higher output current capability.
2. IRS2106: Designed specifically for half-bridge driver applications.
3. MCP1407: MOSFET and IGBT driver IC with similar features.

These alternative models offer different specifications and may better suit specific application requirements.

In conclusion, the IR2104 is a versatile IC that provides efficient and reliable driving of power MOSFETs and IGBTs. Its high voltage capability, high-speed switching, and compact package make it suitable for various applications in motor drives, switch-mode power supplies, and Class D audio amplifiers. While it has certain limitations, alternative models are available to cater to specific needs.