IRS21864PBF

Product Overview

Category: Integrated Circuit (IC)

Use: The IRS21864PBF is a high-performance, half-bridge gate driver IC designed for use in power electronics applications. It provides the necessary drive signals for MOSFETs and IGBTs in half-bridge and full-bridge configurations.

Characteristics: - High voltage level shifting capability - Low propagation delay times - High peak output current - Undervoltage lockout protection - Overcurrent protection - Thermal shutdown protection

Package: The IRS21864PBF 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 electronic systems, enabling efficient and reliable switching of power devices.

Packaging/Quantity: The IRS21864PBF 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: ±2A
• Propagation Delay Time: 120ns (typical)
• Operating Temperature Range: -40°C to +125°C
• Input Logic Compatibility: CMOS, TTL

Detailed Pin Configuration

The IRS21864PBF features a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. VCC: Positive supply voltage
2. HO: High-side gate driver output
3. LO: Low-side gate driver output
4. COM: Common connection for the high-side and low-side drivers
5. VB: Bootstrap supply voltage
6. VS: High-side floating supply return
7. HS: High-side floating supply input
8. LS: Low-side floating supply input
9. SD: Shutdown input
10. VSS: Negative supply voltage
11. NC: No connection
12. HO: High-side gate driver output
13. LO: Low-side gate driver output
14. COM: Common connection for the high-side and low-side drivers
15. VB: Bootstrap supply voltage
16. VS: High-side floating supply return

Functional Features

• High voltage level shifting capability allows direct interface with microcontrollers or digital signal processors.
• Low propagation delay times ensure fast and accurate switching of power devices.
• Undervoltage lockout protection prevents improper operation during low supply voltage conditions.
• Overcurrent protection safeguards against excessive current flow, preventing damage to the IC and connected devices.
• Thermal shutdown protection activates when the temperature exceeds a safe operating limit, preventing overheating.

Advantages and Disadvantages

Advantages: - High-performance and reliable gate driver for power electronics applications. - Compact and industry-standard package for easy integration into various systems. - Comprehensive protection features enhance system safety and reliability.

Disadvantages: - Limited output current compared to some other gate driver ICs. - Requires external bootstrap capacitor for proper operation.

Working Principles

The IRS21864PBF operates by receiving input signals from a microcontroller or digital signal processor and generating the necessary drive signals for MOSFETs or IGBTs in half-bridge or full-bridge configurations. It utilizes high voltage level shifting techniques to ensure proper gate drive voltages for the power devices. The IC incorporates various protection mechanisms to safeguard against undervoltage, overcurrent, and thermal issues.

Detailed Application Field Plans

The IRS21864PBF finds extensive use in various power electronics applications, including: - Motor drives - Switch-mode power supplies - Solar inverters - Uninterruptible power supplies (UPS) - Electric vehicle charging systems - Industrial automation equipment

Detailed and Complete Alternative Models

• IRS21864S: Similar to IRS21864PBF, but with a different pin configuration.
• IRS21867PBF: Higher output current version of the IRS21864PBF.
• IRS21867S: Similar to IRS21867PBF, but with a different pin configuration.

These alternative models offer similar functionality and can be considered as substitutes for the IRS21864PBF depending on specific requirements.

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