IR2118PBF

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2118PBF is a high voltage, high-speed power MOSFET and IGBT driver IC. It is specifically designed to drive power switches in applications such as motor drives, switch-mode power supplies, and inverters.

Characteristics: - High voltage capability - Fast switching speed - Low power consumption - Protection features for safe operation - Compact package for easy integration

Package: The IR2118PBF is available in a compact 8-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the IR2118PBF lies in its ability to provide efficient and reliable driving of power MOSFETs and IGBTs, enabling optimal performance in various power electronic applications.

Packaging/Quantity: The IR2118PBF is typically packaged in reels or tubes, with a quantity of 2500 units per reel or 50 units per tube.

Specifications

• Supply Voltage: 10V - 20V
• Output Current: ±2A
• Operating Temperature Range: -40°C to +125°C
• Input Logic Levels: CMOS/TTL compatible
• Propagation Delay Time: 120ns (typical)
• Rise/Fall Time: 35ns (typical)
• Maximum Duty Cycle: 50%

Pin Configuration

The IR2118PBF features an 8-pin configuration:

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

Functional Features

• High voltage level shifting for driving power MOSFETs and IGBTs
• Bootstrap operation for high-side gate drive
• Under-voltage lockout protection
• Over-current protection
• Short-circuit protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High voltage capability allows for driving of power switches in various applications - Fast switching speed enables efficient power conversion - Low power consumption contributes to energy efficiency - Protection features ensure safe operation and device longevity - Compact package facilitates easy integration into circuit designs

Disadvantages: - Limited output current may restrict usage in high-power applications - Propagation delay time and rise/fall time may affect overall system performance in certain applications

Working Principles

The IR2118PBF operates by receiving input signals from a microcontroller or control circuitry, which are then processed and amplified to drive the gates of power MOSFETs or IGBTs. The high voltage level shifting capability ensures proper gate drive voltages, enabling efficient switching of the power devices. The bootstrap operation provides the necessary voltage for the high-side gate driver, eliminating the need for an external power supply.

Detailed Application Field Plans

The IR2118PBF finds extensive application in the following fields:

1. Motor Drives: Enables precise control of motor speed and direction in electric vehicles, industrial machinery, and robotics.
2. Switch-Mode Power Supplies: Facilitates efficient power conversion in AC-DC and DC-DC converters used in telecommunications, data centers, and renewable energy systems.
3. Inverters: Enables conversion of DC power to AC power in solar inverters, UPS (Uninterruptible Power Supply) systems, and grid-tied inverters.

Detailed and Complete Alternative Models

1. IR2110PBF: Similar to the IR2118PBF, but with a lower output current capability of ±2A.
2. IR2184PBF: Offers additional features such as independent inputs for high-side and low-side gate drivers, suitable for more complex power electronic applications.
3. IRS2106SPBF: Designed specifically for driving half-bridge circuits, offering simplified circuit design and reduced component count.

These alternative models provide similar functionality to the IR2118PBF and can be considered based on specific application requirements.

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