IR21271PBF

Product Overview

Category: Integrated Circuit (IC)

Use: The IR21271PBF is a high-performance, single-channel gate driver IC designed for use in power electronics applications. It provides reliable and efficient switching control for power MOSFETs and IGBTs.

Characteristics: - High voltage level shifting capability - Fast switching speed - Low propagation delay - High noise immunity - Wide operating temperature range

Package: The IR21271PBF is available in a compact and industry-standard 8-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the IR21271PBF lies in its ability to provide precise and robust gate drive signals to power devices, ensuring optimal performance and protection against voltage spikes and transients.

Packaging/Quantity: The IR21271PBF is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 10V to 20V
• Output Current: 2A
• Input Logic Compatibility: CMOS/TTL
• Operating Temperature Range: -40°C to 125°C
• Maximum Propagation Delay: 100ns
• Maximum Rise/Fall Time: 25ns

Pin Configuration

The IR21271PBF features the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. IN: Logic input for controlling the gate driver
4. SD: Shutdown input for disabling the gate driver
5. HO: High-side gate driver output
6. LO: Low-side gate driver output
7. VS: High-side floating supply voltage
8. COM: Common connection for low-side gate driver and bootstrap capacitor

Functional Features

• High voltage level shifting: Enables the gate driver to handle high-side power devices efficiently.
• Fast switching speed: Facilitates rapid switching transitions, reducing power losses and improving overall system performance.
• Low propagation delay: Ensures precise timing control for power device switching.
• High noise immunity: Provides reliable operation in noisy environments.
• Under-voltage lockout (UVLO) protection: Prevents improper operation during low supply voltage conditions.
• Over-current protection: Safeguards against excessive current flow, protecting the power devices.

Advantages

• Robust and reliable gate drive signals
• Wide operating temperature range allows for use in various environments
• Compact package size facilitates easy integration into circuit designs
• High noise immunity ensures stable operation in demanding applications
• UVLO and over-current protection enhance system safety and reliability

Disadvantages

• Limited output current may restrict usage in high-power applications
• Propagation delay may affect timing-sensitive applications
• Requires external bootstrap capacitor for high-side gate driver operation

Working Principles

The IR21271PBF operates by receiving logic input signals through the IN pin. These signals are then processed and amplified to generate precise gate drive signals for power MOSFETs or IGBTs. The high-side and low-side gate driver outputs (HO and LO) provide the necessary voltage levels to switch the power devices on and off.

Application Field Plans

The IR21271PBF is widely used in various power electronics applications, including:

1. Motor drives
2. Switch-mode power supplies
3. Uninterruptible power supplies (UPS)
4. Solar inverters
5. Electric vehicle charging systems
6. Industrial automation equipment

Alternative Models

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

1. IR2101PBF
2. IRS21867SPBF
3. FAN7380MX

These models offer similar functionality and can be suitable replacements for the IR21271PBF in specific applications.

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