The IRS2117S is a high-side driver manufactured by International Rectifier (now Infineon Technologies). It's designed to drive a single N-channel MOSFET or IGBT in high-side configurations, commonly used in motor control, power supplies, and other switching applications.

Applications:

• Motor control
• Power supplies
• Lighting ballasts
• Class D amplifiers
• Induction heating

Features:

• Floating channel designed for bootstrap operation
• Gate drive supply range from 10V to 20V
• Logic input compatible with 3.3V and 5V logic
• Under-voltage lockout (UVLO)
• High-side gate drive
• CMOS Schmitt-triggered inputs with pull-down

Benefits:

• Simplified high-side gate drive design
• Robust operation with wide supply voltage range
• Direct interface with microcontrollers and other digital logic
• Protection against MOSFET/IGBT damage due to low gate voltage
• Improved system performance

Technical Specifications:

The IRS2117S features a floating channel that can be used in a bootstrap configuration to drive the high-side MOSFET or IGBT. It has a gate drive supply range from 10V to 20V, allowing it to drive a variety of power devices. The logic inputs are compatible with both 3.3V and 5V logic, making it easy to interface with microcontrollers and other digital circuits. The under-voltage lockout (UVLO) feature protects the MOSFET/IGBT from damage due to low gate voltage. The high-side gate drive simplifies the design of high-side switching circuits.

The CMOS Schmitt-triggered inputs with pull-down provide noise immunity and ensure reliable operation. It’s an essential component in systems where efficient and reliable high-side switching is required. Often, this part is coupled with low-side drivers or half-bridge drivers to complete motor control or power conversion circuits. The bootstrap operation reduces the cost and complexity of the power supply design.