The IRS2128S is a high voltage, high-speed power MOSFET and IGBT driver with over-current protection. Manufactured by International Rectifier (now Infineon Technologies), this driver IC is designed for applications such as motor control, power supplies, and lighting ballasts. It provides a robust and reliable solution for driving power devices with integrated protection features.

Applications

• Motor Control: Drives MOSFETs or IGBTs in motor control applications for appliances, power tools, and industrial equipment.
• Power Supplies: Used in half-bridge and full-bridge power supplies for computers, servers, and other electronic devices.
• Inverters: Drives the switches in DC-AC inverters for solar power, UPS systems, and other applications.
• Lighting Ballasts: Controls the MOSFETs in electronic ballasts for fluorescent and LED lighting.
• Induction Heating: Used to drive the power switches in induction heating systems.

Features

• Floating Channel Designed for Bootstrap Operation: Simplifies the gate drive circuitry and reduces component count.
• Over-Current Protection (OCP): Protects the MOSFETs and IGBTs from damage due to over-current conditions.
• Under-Voltage Lockout (UVLO) for Both Channels: Protects the MOSFETs and IGBTs from damage due to low gate voltage.
• Logic Input Compatible: Accepts logic-level signals for easy interfacing with microcontrollers and other control circuits.
• High-Side and Low-Side Driver: Drives both the high-side and low-side switches in a half-bridge configuration.

Benefits

• Simplified Circuit Design: Reduces the complexity of gate drive circuits, saving space and cost.
• Improved Reliability: The over-current protection feature protects the MOSFETs and IGBTs from damage, ensuring reliable operation.
• Enhanced Safety: The UVLO feature protects the power devices from undervoltage conditions.
• Easy Integration: Compatible with a wide range of control circuits and power devices.
• Versatile Applications: Suitable for a wide range of power electronics applications.

Technical Specifications

The IRS2128S typically operates with a supply voltage range of 10V to 20V. The output current capability is designed to drive a wide range of MOSFETs and IGBTs. The over-current protection threshold can be adjusted to suit different application requirements. The UVLO threshold is set to protect the power devices from undervoltage conditions. The input impedance is designed to be compatible with logic-level signals. The IC is available in a surface-mount package for compact circuit designs. The operating temperature range is typically specified for industrial applications, ensuring reliable operation in harsh environments. The propagation delay is minimized to ensure efficient switching performance.