IR2118STR

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2118STR 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, inverters, and switching power supplies.

Characteristics: - High voltage capability - Fast switching speed - Low power consumption - Compact package size - Robust protection features

Package: The IR2118STR is available in a small outline package (SOP) with 16 pins.

Essence: This IC serves as a crucial component in power electronics systems by providing the necessary drive signals to control power switches efficiently.

Packaging/Quantity: The IR2118STR is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact quantity may vary depending on the supplier.

Specifications

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

Pin Configuration

The IR2118STR has 16 pins arranged as follows:

Pin 1: VCC Pin 2: IN1 Pin 3: IN2 Pin 4: LO1 Pin 5: HO1 Pin 6: COM Pin 7: VS Pin 8: VB Pin 9: HO2 Pin 10: LO2 Pin 11: SD Pin 12: RT Pin 13: CT Pin 14: NC Pin 15: GND Pin 16: VSS

Functional Features

• High voltage level shifting
• Independent high and low side referenced output channels
• Under-voltage lockout protection
• Matched propagation delay for both channels
• Integrated bootstrap diode
• Output in-phase with input (non-inverting)

Advantages and Disadvantages

Advantages: - Enables efficient and reliable control of power switches - Fast switching speed improves system performance - Compact package size saves board space - Robust protection features enhance system reliability

Disadvantages: - Limited output current may restrict use in high-power applications - Requires external components for proper operation - Sensitivity to voltage spikes or noise in the system

Working Principles

The IR2118STR operates by receiving input signals from a microcontroller or control circuitry. It then amplifies and shapes these signals to drive the gate of power MOSFETs or IGBTs. By controlling the gate voltage, it regulates the conduction and switching of power switches, allowing precise control over power flow in various applications.

Detailed Application Field Plans

The IR2118STR finds extensive use in the following applications:

1. Motor Drives: Controlling the speed and direction of motors in industrial automation, robotics, and electric vehicles.
2. Inverters: Converting DC power to AC power in solar energy systems, uninterruptible power supplies (UPS), and electric vehicle charging stations.
3. Switching Power Supplies: Regulating voltage and current in electronic devices such as computers, telecommunication equipment, and consumer electronics.

Detailed and Complete Alternative Models

1. IR2110: Similar functionality but with lower voltage capability.
2. IR2184: Dual channel driver with additional shutdown and fault detection features.
3. IRS2106: Half-bridge driver with integrated current sensing capability.

These alternative models offer similar functionalities to the IR2118STR and can be considered based on specific application requirements.

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