The FAN7392 is a high-voltage gate driver IC from ON Semiconductor (formerly Fairchild Semiconductor). It's designed to drive N-channel MOSFETs and IGBTs in half-bridge configurations. This gate driver is suitable for applications like ballast, power supplies, and motor control. Its features include high noise immunity, under-voltage lockout (UVLO), and a bootstrap diode, enabling reliable operation and protection for power devices.

Applications

• Electronic Ballast
• Power Supplies (SMPS, UPS)
• Induction Heating
• Motor Control
• High-Voltage Inverters

Features

• Floating Channel: Supports bootstrap operation up to 600V.
• Matched Propagation Delay: Ensures minimal dead-time and efficient switching.
• Under-Voltage Lockout (UVLO): Prevents operation below a safe gate voltage.
• Internal Bootstrap Diode: Simplifies design and reduces external component count.
• High Noise Immunity: Provides reliable operation in noisy environments.

Benefits

• Efficient Switching: Reduces switching losses and improves system efficiency.
• Simplified Design: Fewer external components required.
• Reliable Operation: Protection features enhance system reliability.
• High-Voltage Capability: Suitable for high-voltage applications.

Additional Details

The FAN7392 integrates a high-voltage half-bridge gate driver with a bootstrap diode. The internal bootstrap diode eliminates the need for an external fast-recovery diode, simplifying the design and reducing cost. The UVLO function protects the MOSFETs/IGBTs by ensuring that they are not driven with insufficient gate voltage. The matched propagation delay minimizes dead-time and optimizes switching performance. Given it is an end-of-life product, consider alternatives from ON Semiconductor for new designs.