IRS21094PBF

Product Overview

Category: Integrated Circuit (IC)

Use: The IRS21094PBF is a high-performance, high-voltage, half-bridge gate driver IC. It is specifically designed for driving MOSFETs and IGBTs in applications such as motor drives, power supplies, and inverters.

Characteristics: - High voltage capability - Fast switching speed - Low power consumption - Protection features (e.g., undervoltage lockout, overcurrent protection) - High noise immunity

Package: The IRS21094PBF is available in a compact and industry-standard 16-pin SOIC (Small Outline Integrated Circuit) package.

Essence: This IC serves as a crucial component in power electronics systems, enabling efficient and reliable control of high-power devices like MOSFETs and IGBTs.

Packaging/Quantity: The IRS21094PBF is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 10V to 20V
• Output Current: ±290mA
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 120ns (typical)
• Maximum Duty Cycle: 50%
• Fault Shutdown Delay: 1.5μs (typical)

Detailed Pin Configuration

The IRS21094PBF features a total of 16 pins, each serving a specific function. Here is the detailed pin configuration:

1. VCC: Power supply voltage input
2. HO: High-side gate drive output
3. LO: Low-side gate drive output
4. VB: Bootstrap supply voltage input
5. VS: High-side floating supply return
6. COM: Common connection for low-side gate driver
7. SD: Shutdown input
8. VSS: Logic ground
9. NC: No connection
10. HO: High-side gate drive output
11. LO: Low-side gate drive output
12. VB: Bootstrap supply voltage input
13. VS: High-side floating supply return
14. COM: Common connection for low-side gate driver
15. SD: Shutdown input
16. VSS: Logic ground

Functional Features

• High-voltage level shifting
• Adaptive shoot-through protection
• Integrated bootstrap diode
• Programmable dead time
• Under-voltage lockout (UVLO) protection
• Overcurrent protection (OCP)
• Fault shutdown with adjustable delay

Advantages and Disadvantages

Advantages: - High-performance gate driver for demanding applications - Robust protection features enhance system reliability - Compact package size allows for space-efficient designs - Fast switching speed improves overall system efficiency - Wide operating temperature range enables versatile usage

Disadvantages: - Requires external components for complete circuit implementation - Limited maximum duty cycle of 50% may restrict certain applications - Not suitable for low-voltage applications due to its high-voltage capability

Working Principles

The IRS21094PBF operates by receiving control signals from a microcontroller or other control circuitry. It generates the necessary gate drive signals to control the switching of MOSFETs or IGBTs in a half-bridge configuration. The adaptive shoot-through protection prevents both high-side and low-side devices from conducting simultaneously, ensuring safe operation.

Detailed Application Field Plans

The IRS21094PBF finds extensive use in various applications, including: 1. Motor drives: Enables precise control of motor speed and direction in electric vehicles, industrial machinery, and robotics. 2. Power supplies: Facilitates efficient power conversion and regulation in AC-DC and DC-DC converters. 3. Inverters: Enables the conversion of DC power to AC power in renewable energy systems, such as solar inverters and wind turbines.

Detailed and Complete Alternative Models

1. IRS2101PBF: Similar high-voltage half-bridge gate driver IC with fewer features.
2. IRS2184PBF: Dual-channel gate driver IC suitable for full-bridge applications.
3. IR2110PBF: High-voltage, high-speed gate driver IC with independent high-side and low-side outputs.

These alternative models offer different specifications and features, allowing designers to choose the most suitable option based on their specific requirements.

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