STMicroelectronics

L6384D

L6384D Description

The L6384D from STMicroelectronics is a high-voltage, half-bridge gate driver IC designed for driving N-channel power MOSFETs or IGBTs in synchronous applications. Operating within a 14.6V to 16.6V supply range, it features 600V bootstrap capability, making it suitable for high-side switching in demanding power electronics. With two independent drivers, it supports inverting logic inputs (VIL: 1.5V, VIH: 3.6V) and delivers peak output currents of 400mA (source) and 650mA (sink), ensuring robust switching performance. The device is optimized for fast switching (50ns rise, 30ns fall times), minimizing losses in high-frequency applications.

L6384D Features

• High-Side Voltage Rating: Supports up to 600V bootstrap voltage, enabling use in high-voltage systems.
• Fast Switching: 50ns rise and 30ns fall times reduce switching losses and improve efficiency.
• High Current Drive: 400mA source / 650mA sink capability ensures reliable MOSFET/IGBT control.
• Inverting Logic Inputs: Compatible with low-voltage control signals (1.5V–3.6V).
• Synchronous Channel Operation: Ideal for half-bridge or full-bridge topologies.
• Robust Packaging: 8-pin SOIC (Surface Mount) with MSL1 (unlimited shelf life) and RoHS3 compliance.

L6384D Applications

The L6384D excels in high-voltage, high-frequency power conversion systems, including:

• Switch-Mode Power Supplies (SMPS): For efficient AC/DC or DC/DC conversion.
• Motor Drives: Enables precise control in industrial and automotive motor systems.
• LED Lighting Drivers: Supports high-efficiency LED power stages.
• Solar Inverters: Optimizes performance in renewable energy applications.
• Inductive Load Switching: Reliable for driving transformers and solenoids.

Conclusion of L6384D

The L6384D stands out for its high-voltage tolerance, fast switching, and robust drive capability, making it a preferred choice for power electronics designers. While now classified as obsolete, its performance in synchronous half-bridge applications remains highly regarded. Engineers seeking alternatives should consider newer STMicroelectronics gate drivers with similar specs but updated availability. For legacy systems, the L6384D offers proven reliability in high-efficiency, high-power designs.