IRS2118SPBF

Product Overview

Category: Integrated Circuit (IC)

Use: The IRS2118SPBF is a high-performance half-bridge gate driver IC designed for use in motor control and power conversion applications.

Characteristics: - High voltage level shifting capability - Low propagation delay times - Integrated bootstrap diode - Protection features such as under-voltage lockout (UVLO) and thermal shutdown

Package: The IRS2118SPBF is available in a surface-mount 16-pin SOIC (Small Outline Integrated Circuit) package.

Essence: This IC serves as a crucial component in driving the high-side and low-side MOSFETs or IGBTs in a half-bridge configuration, enabling efficient and reliable power switching.

Packaging/Quantity: The IRS2118SPBF is typically sold in reels containing 250 units.

Specifications

• Supply Voltage Range: 10V to 20V
• Output Current: ±2A
• Operating Temperature Range: -40°C to +125°C
• Input Logic Compatibility: CMOS, TTL

Detailed Pin Configuration

The IRS2118SPBF features the following pin configuration:

1. VCC: Supply voltage input
2. HO: High-side gate driver output
3. LO: Low-side gate driver output
4. VB: Bootstrap supply voltage input
5. VS: High-side floating supply return
6. HS: High-side floating supply input
7. LS: Low-side floating supply input
8. COM: Common reference point
9. SD: Shutdown input
10. RT: Dead time control resistor
11. CT: Bootstrap capacitor connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. GND: Ground
16. IN: Logic input

Functional Features

• High voltage level shifting: Enables efficient control of high-side MOSFETs or IGBTs.
• Integrated bootstrap diode: Simplifies the design by eliminating the need for an external diode.
• Under-voltage lockout (UVLO): Protects against insufficient supply voltage.
• Thermal shutdown: Prevents overheating and damage to the IC.

Advantages and Disadvantages

Advantages: - High-performance gate driver with low propagation delay times. - Integrated protection features enhance system reliability. - Compact surface-mount package allows for easy integration into various applications.

Disadvantages: - Limited output current may restrict usage in high-power applications. - Requires careful consideration of thermal management due to operating temperature limitations.

Working Principles

The IRS2118SPBF operates by receiving logic input signals and generating corresponding gate drive signals for the high-side and low-side power switches. It utilizes a bootstrap capacitor to generate a voltage higher than the supply voltage, enabling efficient switching of the high-side switch. The integrated protection features ensure safe operation and prevent damage to the IC and connected components.

Detailed Application Field Plans

The IRS2118SPBF finds extensive application in various fields, including: 1. Motor control systems 2. Power inverters 3. Switch-mode power supplies 4. Uninterruptible power supplies (UPS) 5. Solar inverters 6. Electric vehicle charging systems

Detailed and Complete Alternative Models

1. IRS2110SPBF: Similar to IRS2118SPBF but with a different pin configuration.
2. IRS21844SPBF: Dual half-bridge gate driver IC with additional features.
3. IR2104SPBF: Half-bridge gate driver IC with lower output current capability.

These alternative models offer similar functionality and can be considered based on specific application requirements.

Word count: 408 words