IR21094S

Product Overview

Category: Integrated Circuit (IC)

Use: The IR21094S is a high voltage, high-speed power MOSFET and IGBT driver. It is specifically designed for driving MOSFETs and IGBTs in applications such as motor control, switch mode power supplies, and uninterruptible power supplies.

Characteristics: - High voltage capability - High-speed switching - Low power consumption - Compact size

Package: The IR21094S is available in a small outline package (SOP) with 8 pins.

Essence: The essence of the IR21094S lies in its ability to provide efficient and reliable drive signals to power MOSFETs and IGBTs, enabling precise control and switching of these devices.

Packaging/Quantity: The IR21094S is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 10V - 20V
• Output Current: 290mA
• Operating Temperature Range: -40°C to +125°C
• Maximum Duty Cycle: 50%
• Propagation Delay Time: 120ns

Pin Configuration

The IR21094S features the following pin configuration:

1. VCC: Power supply input
2. VB: Bootstrap supply input
3. HO: High-side gate driver output
4. LO: Low-side gate driver output
5. COM: Common ground
6. SD: Shutdown input
7. VS: High-side floating supply return
8. HB: Bootstrap supply return

Functional Features

• High voltage level shifting
• Undervoltage lockout protection
• Shoot-through protection
• Adjustable dead time
• Fault shutdown protection

Advantages and Disadvantages

Advantages: - High voltage capability allows for driving power MOSFETs and IGBTs in various applications - High-speed switching enables efficient operation - Low power consumption reduces energy losses - Compact size facilitates integration into space-constrained designs

Disadvantages: - Limited maximum duty cycle of 50% may restrict certain applications - Propagation delay time of 120ns may affect timing-sensitive operations

Working Principles

The IR21094S operates by receiving control signals from a microcontroller or other control circuitry. It provides the necessary drive signals to power MOSFETs and IGBTs, allowing them to switch on and off rapidly. This switching action controls the flow of current through the devices, enabling precise control of power delivery.

Detailed Application Field Plans

The IR21094S finds application in various fields, including: 1. Motor Control: Enables precise control of motor speed and direction in applications such as robotics, industrial automation, and electric vehicles. 2. Switch Mode Power Supplies: Facilitates efficient conversion of electrical power in applications like computer power supplies, LED lighting, and telecommunications equipment. 3. Uninterruptible Power Supplies: Ensures seamless power transfer during mains power failures, providing backup power to critical systems.

Detailed and Complete Alternative Models

1. IR21094: Similar to IR21094S, but with a different package (DIP) and pin configuration.
2. IR2110: Higher voltage capability and output current compared to IR21094S, suitable for more demanding applications.
3. IR2184: Dual channel driver with integrated bootstrap functionality, offering enhanced performance and flexibility.

Note: The above alternative models are provided as examples and may not cover all available options in the market.

In conclusion, the IR21094S is a high voltage, high-speed power MOSFET and IGBT driver that offers efficient and reliable drive signals for various applications. Its compact size, low power consumption, and high-speed switching make it a versatile choice for motor control, switch mode power supplies, and uninterruptible power supplies. However, its limited duty cycle and propagation delay time should be considered in specific design requirements.