The SI82390AD-IS is an isolated gate driver manufactured by Skyworks Solutions Inc. It's designed to drive power MOSFETs and IGBTs in various power conversion applications. The isolated nature of the driver provides electrical isolation between the control circuitry and the high-power switching elements, improving safety and noise immunity.

Applications

• Power Supplies: Used in isolated power supplies for driving switching transistors.
• Motor Control: Provides isolated gate drive for motor control applications.
• Inverters: Used in solar inverters and UPS systems for driving power transistors.
• Industrial Automation: Isolates control signals in industrial drives and automation equipment.
• Medical Devices: Ensures safety in medical equipment by isolating high-voltage sections.

Features

• Galvanic Isolation: Provides robust electrical isolation between the input and output sides.
• High CMTI: High Common-Mode Transient Immunity, ensuring stable operation in noisy environments.
• Integrated Dead-Time Control: Prevents shoot-through in half-bridge and full-bridge configurations.
• Adjustable Dead Time: Allows optimization of dead time for specific applications.
• UVLO Protection: Under-Voltage Lockout protection to prevent damage during power-up and power-down.

Benefits

• Enhanced Safety: Galvanic isolation enhances safety by preventing high-voltage hazards.
• Improved Noise Immunity: High CMTI ensures reliable operation in noisy environments.
• Increased Efficiency: Adjustable dead-time control optimizes switching efficiency.
• Protection: UVLO protection safeguards the driver and power transistors.
• Simplified Design: Integrated features simplify circuit design and reduce component count.

Additional Details

The SI82390AD-IS utilizes Skyworks' capacitive isolation technology to achieve high levels of isolation. The adjustable dead-time feature allows designers to fine-tune the switching behavior for optimal efficiency and reduced switching losses. The high CMTI rating ensures that the driver can withstand fast transient voltages without spurious switching. The device is typically available in a surface-mount package and operates over an industrial temperature range. The AD suffix likely refers to specific features and performance characteristics within the SI82390 family. Specifications to consult in the datasheet include the isolation voltage rating, propagation delay, peak output current, and dead-time adjustment range.