IR21091STRPBF

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management and Control
• Characteristics: High voltage, high-speed power MOSFET and IGBT driver
• Package: Surface Mount Device (SMD)
• Essence: Provides gate drive for power MOSFETs and IGBTs in various applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 10V to 20V
• Output Current: 2.5A
• Supply Voltage: -0.3V to 20V
• Operating Temperature Range: -40°C to +125°C
• Rise/Fall Time: 35ns (typical)
• Propagation Delay: 150ns (typical)

Detailed Pin Configuration

1. VCC: Supply voltage input
2. IN: Logic input for controlling the output
3. LO: Low-side output, connected to the low side of the power device
4. COM: Common ground for logic and low-side output
5. HO: High-side output, connected to the high side of the power device
6. SD: Shutdown input, used to disable the output
7. VB: Bootstrap supply voltage for high-side driver
8. VS: High-side floating supply voltage

Functional Features

• High voltage level shifting
• Under-voltage lockout protection
• Over-current shutdown protection
• Short circuit protection
• Fault reporting
• Miller clamp functionality
• Integrated bootstrap diode

Advantages

• High voltage capability allows driving of power MOSFETs and IGBTs in various applications
• Fast rise/fall time and propagation delay ensure efficient switching performance
• Comprehensive protection features enhance system reliability
• Integrated bootstrap diode simplifies external circuitry design
• Fault reporting enables easy fault diagnosis and troubleshooting

Disadvantages

• Limited output current may not be suitable for high-power applications
• Operating temperature range may restrict usage in extreme environments
• Requires external components for proper operation, increasing system complexity

Working Principles

The IR21091STRPBF is a high-voltage gate driver IC designed to provide efficient drive signals for power MOSFETs and IGBTs. It utilizes level shifting techniques to ensure proper voltage translation between the low-voltage control signals and the high-voltage power devices. The integrated bootstrap diode simplifies the design of the high-side driver circuitry.

The IC incorporates various protection features such as under-voltage lockout, over-current shutdown, and short circuit protection to safeguard the power devices and the overall system. It also includes fault reporting functionality, allowing easy identification of any faults or malfunctions.

Detailed Application Field Plans

The IR21091STRPBF is widely used in applications that require precise control and efficient switching of power MOSFETs and IGBTs. Some common application fields include: - Motor drives - Switch-mode power supplies - Inverters - Industrial automation systems - Solar inverters - Uninterruptible Power Supplies (UPS) - Electric vehicle charging systems

Detailed and Complete Alternative Models

1. IR21094STRPBF: Similar specifications and features, but with higher output current capability (4A)
2. IR21093STRPBF: Lower output current capability (1.5A), suitable for low-power applications
3. IR21092STRPBF: Higher input voltage range (10V to 25V), ideal for specific applications requiring higher voltage levels

These alternative models offer flexibility in choosing the appropriate gate driver IC based on specific requirements and system constraints.

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